Journal articles: 'Agriculture Kansas'

1

Norman, D., L. Bloomquist, R. Janke, S. Freyenberger, J. Jost, B. Schurle, and H. Kok. "The meaning of sustainable agriculture: Reflections of some Kansas practitioners." American Journal of Alternative Agriculture 15, no. 3 (September 2000): 129–36. http://dx.doi.org/10.1017/s088918930000864x.

Full text

Abstract:

AbstractIn this paper we report on what “sustainable agriculture” means to farmers who seek to develop more sustainable farming systems. Group interviews were conducted with two groups of sustainable farmers in Kansas to learn how they developed their respective approaches, the kinds of parameters they have used to evaluate success and progress, and what other evaluation tools would be helpful to them. For the farmers we interviewed, the central meaning of sustainable agriculture is its holistic approach to assets management. It also means an alternative perspective on what constitutes success in farming. While economic considerations are important, they are balanced by other considerations such as environmental quality, quality of life, and the contributions the farmers can make to their communities. Sustainable agriculture also means an approach to agriculture that entails “thinking risks” as much as financial risks. Lastly, sustainable agriculture means whole farm planning; the farmers we interviewed were more interested in applying whole-farm planning principles based on their local knowledge, than in evaluation tools based on the expert knowledge of researchers and other scientists. The implications of what sustainable agriculture means to these farmers for research and educational programs are discussed.

APA, Harvard, Vancouver, ISO, and other styles

2

Peterson, Dallas E. "The Impact of Herbicide-Resistant Weeds on Kansas Agriculture." Weed Technology 13, no. 3 (September 1999): 632–35. http://dx.doi.org/10.1017/s0890037x00046315.

Full text

Abstract:

Herbicides are important components of weed management programs for most Kansas farmers. Monocropping systems and repeated use of the same or similar herbicides in some areas of the state have resulted in the development of herbicide-resistant weeds. The development of herbicide-resistant weed populations can have an immediate and a long-term effect on the cost, implementation, and effectiveness of weed control programs. In Kansas, resistance to triazine herbicides has been confirmed in kochia (Kochia scoparia), redroot pigweed, common waterhemp (Amaranthus rudis), Palmer amaranth (Amaranthus palmeri), and downy brome (Bromus tectorum) populations, and resistance to acetolactate synthase (ALS)-inhibiting herbicides has been confirmed in kochia, Russian thistle (Salsola kali), common waterhemp, Palmer amaranth, common cocklebur (Xanthium strumarium), shattercane (Sorghum bicolor), and common sunflower (Helianthus annum). The frequency and distribution of herbicide resistance varies among species. Producers who experience herbicide resistance problems adjust their weed control program accordingly. Producers that have not encountered an herbicide resistance problem tend to continue with a successful herbicide program until it fails. The recommended management strategies for herbicide-resistant weed populations include an integrated system of crop rotation, rotation of herbicide modes of action, tank-mixes of herbicides with different modes of action, and cultivation. The greatest direct cost to the producer occurs during the first year of poor weed control. The first response to an herbicide failure often is to reapply the same herbicide that has worked well previously. By the time the producer realizes that the treatment is not going to work, it usually is too late for any other remedial action. Consequently, the farmer experiences reduced crop production from weed competition, high herbicide costs, and a tremendous increase in the seed bank. The increase in seed bank may cost the farmer the most in the long run because the increased weed pressure often requires an intensified control program for several years.

APA, Harvard, Vancouver, ISO, and other styles

3

Barkley, Andrew P. "Earnings of Kansas State University Agriculture Graduates: 1978–88." American Journal of Agricultural Economics 74, no. 1 (February 1992): 215–22. http://dx.doi.org/10.2307/1243006.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Featherstone, Allen M., and Terry L. Kastens. "Non-Parametric and Semi-Parametric Techniques for Modeling and Simulating Correlated, Non-Normal Price and Yield Distributions: Applications to Risk Analysis in Kansas Agriculture." Journal of Agricultural and Applied Economics 32, no. 2 (August 2000): 267–81. http://dx.doi.org/10.1017/s1074070800020356.

Full text

Abstract:

AbstractParametric, non-parametric, and semi-parametric approaches are commonly used for modeling correlated distributions. Semi-parametric and non-parametric approaches are used to examine the risk situation for Kansas agriculture. Results from the model indicate that 2000 will be another difficult year for Kansas farmers, although crop income will increase slightly from 1999. However, unless another supplemental infusion of government payments occurs, crop income is expected to be the lowest since 1992.

APA, Harvard, Vancouver, ISO, and other styles

5

Hendrickson, J. R., M. A. Liebig, and G. F. Sassenrath. "Environment and integrated agricultural systems." Renewable Agriculture and Food Systems 23, no. 04 (September 19, 2008): 304–13. http://dx.doi.org/10.1017/s1742170508002329.

Full text

Abstract:

AbstractModern agriculture has done an excellent job producing food, feed and fiber for the world's growing population, but there are concerns regarding its continued ability to do so, especially with the world's limited resources. To adapt to these challenges, future agricultural systems will need to be diverse, complex and integrated. Integrated agricultural systems have many of these properties, but how they are shaped by the environment and how they shape the environment is still unclear. In this paper, we used commonly available county-level data and literature review to answer two basic questions. First, are there environmental limitations to the adoption of integrated agricultural systems? Second, do integrated agricultural systems have a lower environmental impact than more specialized systems? We focused on the Great Plains to answer these questions. Because of a lack of farm-level data, we used county-level surrogate indicators. The indicators selected were percent land base in pasture and crop diversity along a precipitation gradient in North Dakota, South Dakota, Nebraska and Kansas. Evaluated over the four-state region, neither indicator had a strong relationship with precipitation. In the Dakotas, both percent pasture land and crop diversity suggested greater potential for agricultural integration at the mid-point of the precipitation gradient, but there was no clear trend for Kansas and Nebraska. Integrated agricultural systems have potential to reduce the impact of agriculture on the environment despite concerns with nutrient management. Despite advantages, current adoption of integrated agricultural systems appears to be limited. Future integrated agricultural systems need to work with environmental limitations rather than overcoming them and be capable of enhancing environmental quality.

APA, Harvard, Vancouver, ISO, and other styles

6

Raven. "An assessment of microcomputer utilization in Kansas vocational agriculture programs." Journal of Agricultural Education 30, no. 1 (March 1, 1989): 23–31. http://dx.doi.org/10.5032/jae.1989.01023.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Ball, Jennifer A. "She works hard for the money: women in Kansas agriculture." Agriculture and Human Values 31, no. 4 (May 15, 2014): 593–605. http://dx.doi.org/10.1007/s10460-014-9504-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Miller, N. J., T. W. Griffin, J. Bergtold, I. A. Ciampitti, and A. Sharda. "Farmers’ Adoption Path of Precision Agriculture Technology." Advances in Animal Biosciences 8, no. 2 (June 1, 2017): 708–12. http://dx.doi.org/10.1017/s2040470017000528.

Full text

Abstract:

Precision agriculture technologies have been adopted individually and in bundles. A sample of 348 Kansas Farm Management Association farm-level observations provides insight into technology adoption patterns of precision agriculture technologies. Estimated transition probabilities shed light on how adoption paths lead to bundling of technologies. Three information intensive technologies were assigned to one of eight possible bundles, and the sequence of adoption was examined using Markov transition processes. The probability that farms remain with the same bundle or transition to a different bundle by the next time period are reported. Farms with the complete bundle of all three technologies were likely to persist with their current technology.

APA, Harvard, Vancouver, ISO, and other styles

9

Haan, James M., Donald Hauschild, Christine Patterson, Jeanette G. Ward, and Stephen D. Helmer. "Fatal Agricultural Accidents in Kansas: A Thirty-One-Year Study." American Surgeon 84, no. 4 (April 2018): 581–86. http://dx.doi.org/10.1177/000313481808400435.

Full text

Abstract:

Agricultural work results in numerous injuries and deaths. Efficacy of farm equipment safety interventions remains unclear. This study evaluated agricultural mortality pre- and post-implementation of safety initiatives. A 31-year retrospective review of mortality data from agriculture-related injuries was conducted. Demographics and injury patterns were evaluated by mechanism of injury. There were 660 deaths (mean age 48.6 years). Female deaths increased from 5.2 to 11.7 per cent ( P = 0.032). Mortality associated with tractors decreased (75.6% vs 53.9%; P < 0.001) and with all-terrain vehicles increased (3.5% vs 22.0%; P < 0.001) from Period I to III. However, tractors remain the primary cause of mortality. For mechanical equipment–associated mortality, there was a decrease (83.3% vs 50.0%) in “caught in equipment,” and an increase (6.7% vs 38.9%) in those killed by “crush injury” from Period I to III. Application of safety devices to enclose and stabilize machinery has led to an overall decrease in mortality associated with tractors and “caught in equipment.” Expanded rural education, as well as further development and use of safety devices, is warranted to curtail farm-related injuries and deaths.

APA, Harvard, Vancouver, ISO, and other styles

10

Pomeranz, Jennifer L., and Mark Pertschuk. "Key Drivers of State Preemption of Food, Nutrition, and Agriculture Policy: A Thematic Content Analysis of Public Testimony." American Journal of Health Promotion 33, no. 6 (January 6, 2019): 894–902. http://dx.doi.org/10.1177/0890117118823163.

Full text

Abstract:

Purpose: Local communities are often active public health policy makers, so state preemption—when the state withdraws authority from local governments—can hinder public health progress. Kansas enacted the most sweeping law in the nation preempting food, nutrition, and agricultural policy. Design: Qualitative thematic content analysis was used on public comments to identify and evaluate common and key arguments. A codebook was developed using an iterative process. Open coding was applied to all comments. Setting: All testimony and comments submitted by individuals and organizations to the Kansas State Legislature on the preemptive bill. Participants: Eight types of commentators submitted 34 written and 12 oral comments. Measures: The data were evaluated on a latent level to examine underlying drivers of preemption. Results: Comments addressed 18 themes, referenced 366 times; 68% in opposition. Common themes included local control, food labeling, public health, need for statewide standards, and debate over food regulation. Key themes included the need for state and federal uniformity to support businesses and consumers, debate over topics not in the bill, the value of local control, confusion over bill coverage, and outside influences. Conclusion: Confusion about bill language and coverage, the combination of food and agricultural issues, and backing by multinational corporations helped propel preemption forward in Kansas. Food policy stakeholders nationally can anticipate similar arguments and strategies in their state.

APA, Harvard, Vancouver, ISO, and other styles

11

Tucker, Brenda, and Gary W. Brester. "Koch Agriculture Company's Domestic Milling Decisions: The Western Kansas Flour Mill Project." Review of Agricultural Economics 19, no. 2 (1997): 463. http://dx.doi.org/10.2307/1349753.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Kenneth M. Sylvester and Paul W. Rhode. "Making Green Revolutions: Kansas Farms, Recovery, and the New Agriculture, 1918–1981." Agricultural History 91, no. 3 (2017): 342. http://dx.doi.org/10.3098/ah.2017.091.3.342.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Ramaswamy, Mohan, and Mike Haddock. "The Dynamics of Agriculture Subject Guide Access at Kansas State University Libraries." Journal of Agricultural & Food Information 6, no. 4 (July 8, 2004): 17–24. http://dx.doi.org/10.1300/j108v06n04_04.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Eisler, Riane. "Sustainable Agriculture--Going to the Root of the Problem: A Conversation with Wes Jackson." Interdisciplinary Journal of Partnership Studies 6, no. 1 (April 3, 2019): 2. http://dx.doi.org/10.24926/ijps.v6i1.1983.

Full text

Abstract:

IJPS Editor-in-Chief Riane Eisler interviews Wes Jackson, founder of the pioneering sustainable agriculture research and development organization, The Land Institute, with headquarters in Salina, Kansas. He is the author of New Roots for Agriculture, Altars of Unhewn Stone, Becoming Native to This Place, Consulting the Genius of the Place, and Nature as Measure. Jackson has received many honors for his groundbreaking work, including the Right Livelihood Award, election as a Pew Conservation Scholar and a MacArthur Fellow, and inclusion by Life magazine as one of the 100 important Americans of the 20th century and by the Smithsonian as one of “35 Who Made a Difference.”

APA, Harvard, Vancouver, ISO, and other styles

15

Benson, Maxine, George E. Ham, and Robin Higham. "The Rise of the Wheat State: A History of Kansas Agriculture, 1861-1986." Western Historical Quarterly 19, no. 2 (May 1988): 219. http://dx.doi.org/10.2307/968413.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Yang, Yanjun, Bo Tao, Wei Ren, Demetrio P. Zourarakis, Bassil El Masri, Zhigang Sun, and Qingjiu Tian. "An Improved Approach Considering Intraclass Variability for Mapping Winter Wheat Using Multitemporal MODIS EVI Images." Remote Sensing 11, no. 10 (May 19, 2019): 1191. http://dx.doi.org/10.3390/rs11101191.

Full text

Abstract:

Winter wheat is one of the major cereal crops in the world. Monitoring and mapping its spatial distribution has significant implications for agriculture management, water resources utilization, and food security. Generally, winter wheat has distinguished phenological stages during the growing season, which form a unique EVI (Enhanced Vegetation Index) time series curve and differ considerably from other crop types and natural vegetation. Since early 2000, the MODIS EVI product has become the primary dataset for satellite-based crop monitoring at large scales due to its high temporal resolution, huge observation scope, and timely availability. However, the intraclass variability of winter wheat caused by field conditions and agricultural practices might lower the mapping accuracy, which has received little attention in previous studies. Here, we present a winter wheat mapping approach that integrates the variables derived from the MODIS EVI time series taking into account intraclass variability. We applied this approach to two winter wheat concentration areas, the state of Kansas in the U.S. and the North China Plain region (NCP). The results were evaluated against crop-specific maps or statistical data at the state/regional level, county level, and site level. Compared with statistical data, the accuracies in Kansas and the NCP were 95.1% and 92.9% at the state/regional level with R2 (Coefficient of Determination) values of 0.96 and 0.71 at the county level, respectively. Overall accuracies in confusion matrix were evaluated by validation samples in both Kansas (90.3%) and the NCP (85.0%) at the site level. Comparisons with methods without considering intraclass variability demonstrated that winter wheat mapping accuracies were improved by 17% in Kansas and 15% in the NCP using the improved approach. Further analysis indicated that our approach performed better in areas with lower landscape fragmentation, which may partly explain the relatively higher accuracy of winter wheat mapping in Kansas. This study provides a new perspective for generating multiple subclasses as training inputs to decrease the intraclass differences for crop type detection based on the MODIS EVI time series. This approach provides a flexible framework with few variables and fewer training samples that could facilitate its application to multiple-crop-type mapping at large scales.

APA, Harvard, Vancouver, ISO, and other styles

17

Strange, Marty. "Private Interests, Public Policy, and American Agriculture. 1988. William P. Browne. University Press of Kansas, Lawrence, Kansas. 294 pp. $29.95, cloth; $12.95, paper." American Journal of Alternative Agriculture 4, no. 3-4 (December 1989): 181–82. http://dx.doi.org/10.1017/s0889189300003052.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Vogelsberg, John. "Rotations: The key to farm success." American Journal of Alternative Agriculture 2, no. 1 (1987): 16. http://dx.doi.org/10.1017/s0889189300001417.

Full text

Abstract:

Editor's note: At conferences with a focus on scientific and political information about alternative agriculture, the live stories of how individual farmers “made the switch” from chemical intensive to low-chemical farming help us to stay in touch with the issues as the farmer sees them. At the IAA symposium, Kansas farmer John Vogelsberg told the story of his choice to make that transition, delighting the audience with his dry humor, warmth, and wisdom. Following are excerpts from his reflections.

APA, Harvard, Vancouver, ISO, and other styles

19

Berg, Gina M., Cheryl Dobson, Felecia A. Lee, Ashley M. Hervey, and Rick Kellerman. "Successes and Challenges of Optimal Trauma Care for Rural Family Physicians in Kansas." Kansas Journal of Medicine 10, no. 1 (January 14, 2019): 12–16. http://dx.doi.org/10.17161/kjm.v10i1.8642.

Full text

Abstract:

Introduction. Kansas has a regionalized trauma systemwith formal mechanisms for review, however, increasedcommunication with rural providers can uncover opportunitiesfor system process improvement. Therefore, thisqualitative study explored perceptions of family medicinephysicians staffing emergency departments (ED) in rural areas,specifically to determine what is going well and what areasneeded improvement in relation to the trauma system. Methods. A focus group included Kansas rural family physiciansrecruited from a local symposium for family medicinephysicians. Demographic information was collected via surveyprior to the focus group session, which was audiotaped.Research team members read the transcription, identifiedthemes, and grouped the findings into categories for analysis. Results. Seven rural family medicine physicians participated inthe focus group. The majority were male (71%) with the mean age46.71 years. All saw patients in the ED and had treated injuriesdue to agriculture, falls, and motor vehicle collisions. Participantsidentified successes in the adoption and enforcement of standardizedprocesses, specifically through level IV trauma centercertification and staff requirements for Advanced Trauma LifeSupport training. Communication breakdown during patient dischargeand skill maintenance were the most prevalent challenges. Conclusions. Even with an established regionalized traumasystem in the state of Kansas, there continues to be opportunitiesfor improvement. The challenges acknowledged byfocus group participants may not be identified through patientcase reviews (if conducted), therefore tertiary centersshould conduct system reviews with referring hospitals regularlyto improve systemic concerns. KS J Med 2017;10(1):12-16.

APA, Harvard, Vancouver, ISO, and other styles

20

Barkley, Andrew P., and Jerry J. Forst. "The Determinants of First-Year Academic Performance in the College of Agriculture at Kansas State University, 1990–1999." Journal of Agricultural and Applied Economics 36, no. 2 (August 2004): 437–48. http://dx.doi.org/10.1017/s1074070800026729.

Full text

Abstract:

This research identifies and quantifies the determinants of first-year academic performance in the College of Agriculture at Kansas State University, 1990–1999. Forty-eight percent of the variation in first-semester college grades was explained by high school grades, standardized test scores, socioeconomic variables, high school characteristics, credit hours completed, and major field of study. Approximately 62% of the variation in second-semester grades was explained. First-semester college grades explained 43% of second-semester grades. Several statistically significant relationships are detected, and the implications for students, advisors, and administrators are discussed.

APA, Harvard, Vancouver, ISO, and other styles

21

Nivens, Heather D., Terry L. Kastens, and Kevin C. Dhuyvetter. "Payoffs to Farm Management: How Important is Crop Marketing?" Journal of Agricultural and Applied Economics 34, no. 1 (April 2002): 193–204. http://dx.doi.org/10.1017/s1074070800002236.

Full text

Abstract:

AbstractIn production agriculture, good management is demonstrated by profits that are persistently greater than those of similar neighboring farms. This research examined the effects of management practices on risk-adjusted profit per acre for Kansas farms over 1990-1999. The management practices were price, cost, yield, planting intensity, and technology adoption (less-tillage). Cost management, planting intensity, and technology adoption had the greatest effect on profit per acre, and cash price management was found to have the smallest impact. If producers wish to have continuously high profits, their efforts are best spent in management practices over which they have the most control.

APA, Harvard, Vancouver, ISO, and other styles

22

Luckstead, Jeff, and Stephen Devadoss. "Implications of Commodity Programs and Crop Insurance Policies for Wheat Producers." Journal of Agricultural and Applied Economics 51, no. 02 (March 4, 2019): 267–85. http://dx.doi.org/10.1017/aae.2018.32.

Full text

Abstract:

AbstractWe analyze the effects of Price Loss Coverage (PLC), Agriculture Risk Coverage (ARC), individual revenue protection insurance (RP), and Supplemental Coverage Option (SCO) on the RP coverage level, certainty equivalent, and program payments. The model is calibrated to a representative wheat farm in Mitchell County in Kansas to analyze the effects of various policies. The result highlights that when insurance is framed as an investment, cumulative prospect theory predicts farmers’ coverage decisions accurately at 70%. ARC or PLC program increases the RP coverage level to 75%, but PLC and SCO jointly decrease the RP coverage level to 70%.

APA, Harvard, Vancouver, ISO, and other styles

23

Westcott, Nancy E. "The Prolonged 1954 Midwestern U.S. Heat Wave: Impacts and Responses." Weather, Climate, and Society 3, no. 3 (July 1, 2011): 165–76. http://dx.doi.org/10.1175/wcas-d-10-05002.1.

Full text

Abstract:

Abstract The highest recorded temperature in Illinois, 117°F (47.2°C) occurred on 14 July 1954 in East St. Louis. This occurred in the midst of a widespread, long-lasting heat wave covering significant parts of 11 states: from eastern Colorado through Kansas, Oklahoma, part of Texas, Missouri, and Arkansas, southern Illinois, and extending to western Tennessee, Alabama, Georgia, and parts of the Carolinas. According to historical climate data, this event ranked as one of the top five extended periods of heat in these states since 1895. No such prolonged heat wave has occurred in the Midwest since 1954. It stands to reason that since prolonged widespread heat waves have occurred in the last 100 years, there is a distinct possibility that they will occur again, and reviewing past impacts could help us plan for future events. This research examines the impacts of the heat felt in the Illinois, Missouri, and Kansas region, as well as the responses to the extreme temperatures. Impacts on human health and well-being, water resources, utilities, agriculture, and commerce are described, as well as responses by individuals, communities, and governmental bodies. The extreme heat resulted in many deaths and much discomfort. Sizeable infrastructure repair costs from buckled streets and warped railroad ties were accrued in 1954. Energy and water resources were significantly strained. However, the most costly governmental interventions were those related to the agricultural community. Recent activities in heat wave and drought preparedness that may help alleviate impacts of future heat waves are discussed.

APA, Harvard, Vancouver, ISO, and other styles

24

Russell, Levi A., Dallas W. Wood, Gregory A. Ibendahl, and Michael R. Langemeier. "The effect of the 2007 ethanol mandate on downside risk in agriculture: evidence from Kansas farmers." Applied Economics Letters 26, no. 8 (June 26, 2018): 698–702. http://dx.doi.org/10.1080/13504851.2018.1489495.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Butler, James J., Donald O. Whittemore, B. Brownie Wilson, and Geoffrey C. Bohling. "Sustainability of aquifers supporting irrigated agriculture: a case study of the High Plains aquifer in Kansas." Water International 43, no. 6 (August 18, 2018): 815–28. http://dx.doi.org/10.1080/02508060.2018.1515566.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Ward, Heidi M., Gabriel L. Apple, Lauren R. Thomas, and Kathryn E. Reif. "Extension Contribution to Anaplasmosis Surveillance in Arkansas: A Story of Collaboration." Journal of Animal Science 99, Supplement_2 (May 1, 2021): 8. http://dx.doi.org/10.1093/jas/skab096.012.

Full text

Abstract:

Abstract The emergence of resistant bacteria forced the medical and animal agriculture communities to rethink how antibiotics are used. In Arkansas, medicated feed is mostly used to treat or control Anaplasmosis in beef cattle herds. Bovine Anaplasmosis is a tick-borne disease caused by the rickettsial bacteria, Anaplasma marginale. This disease causes over $300 million in losses annually for the U.S. cattle industry. With beef cattle being the fifth largest agricultural commodity in Arkansas, it is important to know the prevalence of Anaplasmosis infection in the state. The project described is a collaborative effort between the University of Arkansas-Fayetteville campus, the University of Arkansas Extension, and the Kansas State University (KSU) College of Veterinary Medicine. Extension agents from 33 Arkansas counties were trained to recruit producers for the study and to coordinate sample collection. On the day of blood collection, Extension agents discussed the purpose of the project and appropriate disclosures with the producers. A total of 578 mature beef cattle were randomly selected from six geographical regions for sampling between the months of November 2019 and February 2020. Both whole blood and serum samples were collected from each animal. PCR testing was completed at the KSU College of Veterinary Medicine andcELISA testing was completed at the University of Arkansas Veterinary Diagnostic Laboratory. Blood samples from 335 cattle (58.7%) were positive for Anaplasmosis on at least one test with the majority of animals testing positive (229; 68.4%) on both the cELISA and PCR tests. Rates of regional prevalence ranged from 36.7% to 93.8%. The overall results were discussed with Extension agents via Zoom prior to discussing results with individual producers. Data from this study were added to previous surveillance data collected by Kansas State University and will direct Extension education efforts pertaining to Anaplasmosis management in regional beef cattle herds.

APA, Harvard, Vancouver, ISO, and other styles

27

Ernst, Daniel. "Morganand the New Dealers." Journal of Policy History 20, no. 4 (October 2008): 447–81. http://dx.doi.org/10.1353/jph.0.0024.

Full text

Abstract:

Readers of theNew York Timeswere not accustomed to encountering in its pages a Cabinet official picking a fight with the Supreme Court, but that is what they did on May 8, 1938. Chief Justice Charles Evans Hughes, writing for a majority of the Supreme Court, had recently ruled that Secretary of Agriculture Henry A. Wallace had used the wrong procedures to set the rates that “commission men” charged farmers for marketing cattle, pigs, and sheep at Kansas City's stockyards. It was the second time the case had come before the Court. On the previous occasion, the justices had sent the case back to the lower courts to determine whether the secretary had personally studied the factual record before issuing the rates. In fact, Wallace had given the matter “more personal attention than any previous Secretary of Agriculture had ever given to any case under the Packers and Stockyards Act or for that matter any half dozen cases,” so when the case returned to the Court, the justices had to shift their ground. Now they objected that the Department of Agriculture had not revealed its case to the commission men, leaving them with no way of addressing the government's arguments. Wallace fumed that Hughes had implied that “the present Administration” was to blame for the procedures he followed, when in fact earlier, Republican administrations had established them. Besides, the procedures had already been revised in light of the Supreme Court's first decision in the case.

APA, Harvard, Vancouver, ISO, and other styles

28

Rogers, Richard. "Prehistoric Agriculture in the Central Plains. Mary J. Adair. University of Kansas Publications in Anthropology No. 16. University of Kansas, Lawrence, 1988. viii + 145 pp., tables, figures, references. $15.00 (paper)." American Antiquity 56, no. 2 (April 1991): 376–77. http://dx.doi.org/10.2307/281438.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Janssen, Larry. "Browne, William P. Private Interests, Public Policy, and American Agriculture . Lawrence: University Press of Kansas, 1988, xviii + 294 pp., $@@‐@@12.95." American Journal of Agricultural Economics 70, no. 4 (November 1988): 961–62. http://dx.doi.org/10.2307/1241947.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Ramos, Athena K., Suraj Adhikari, Aaron M. Yoder, and Risto H. Rautiainen. "Occupational Injuries among Latino/a Immigrant Cattle Feedyard Workers in the Central States Region of the United States." International Journal of Environmental Research and Public Health 18, no. 16 (August 21, 2021): 8821. http://dx.doi.org/10.3390/ijerph18168821.

Full text

Abstract:

Agriculture is a dangerous industry with high rates of occupational injuries. Immigrants comprise the majority of the hired agricultural workforce in the United States, and these workers may be at a higher risk for job-related injuries. This study addressed the frequency, characteristics, and risk factors of occupational injuries among Latino immigrant cattle feedyard workers. Data were collected through structured interviews with Latino immigrant cattle feedyard workers in Kansas and Nebraska (n = 243; 90.9% male). Descriptive statistics and logistic regression were used to identify risk factors for injury. Nearly three-fourths of participants (71.2%) reported having experienced one or more injuries in the past while working on a cattle feedyard. The most frequent types of reported injuries, including those not requiring medical care, were bruises/contusions (40%), cuts/lacerations (21%), and sprains/strains (12%). These injuries were mainly caused by animals/livestock (33%), chemicals (23%), falls (12%), and tools (9%). Significant risk factors for injury included male gender (OR 5.9), being over age 35 (OR 2.6), working on a large or an extra-large feedyard (OR 5.4), having 11 or more employees on the feedyard (OR 3.6), and working more than eight hours a day (OR 4.7). Having received safety training was also associated with greater risk of injury in a univariable model (OR 2.6). Cattle feedyard workers are at high risk for injury and require more effective preventive measures.

APA, Harvard, Vancouver, ISO, and other styles

31

Jett*, Lewis, Edward Carey, and Laurie Hodges. "The Central Great Plains High Tunnel Horticulture Project." HortScience 39, no. 4 (July 2004): 750B—750. http://dx.doi.org/10.21273/hortsci.39.4.750b.

Full text

Abstract:

There is great interest by horticulture producers in the Central Great Plains in methods to extend the traditional growing season, increase value of crops and provide more locally grown produce. High tunnels are low-cost, unheated greenhouses that can accomplish these goals. In 2002, the Central Great Plains High Tunnel Project was initiated through funding support by the Initiative for Future Agriculture and Food Systems (IFAFS). The Univ. of Missouri, Kansas State Univ., and the Univ. of Nebraska have constructed 24 high tunnels to conduct research on vegetables, small fruits and cut flowers. Each year, a multi-state workshop is conducted along with several on-farm and research center tours. Growers are collaborating with extension personnel on projects ranging from high tunnel temperature management to pest management. A web site for high tunnel information has been constructed (www.hightunnels.org). Production guides on specific high tunnel crops have been printed. From 2002-03, a significant number of high tunnels have been constructed in the Central Great Plains.

APA, Harvard, Vancouver, ISO, and other styles

32

Hurt, R. Douglas. "Red Earth: Race and Agriculture in Oklahoma Territory. By Bonnie Lynn Sherow (Lawrence, University Press of Kansas, 2004) 178 pp. $29.95." Journal of Interdisciplinary History 37, no. 2 (October 2006): 310–11. http://dx.doi.org/10.1162/jinh.2006.37.2.310.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Hopkins, Raymond F. "Private Interests, Public Policy, and American Agriculture. By William P. Browne. Lawrence: University of Kansas Press, 1988. 294p. $29.95 cloth, $12.95 paper." American Political Science Review 83, no. 2 (June 1989): 627–28. http://dx.doi.org/10.2307/1962423.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Ofori, Eric, Terry Griffin, and Elizabeth Yeager. "Duration analyses of precision agriculture technology adoption: what's influencing farmers' time-to-adoption decisions?" Agricultural Finance Review 80, no. 5 (May 5, 2020): 647–64. http://dx.doi.org/10.1108/afr-11-2019-0121.

Full text

Abstract:

PurposePrecision technologies have been available at the farm level for decades. Some technologies have been readily adopted, while the adoption of other technologies has been slower. The purpose of this study is to examine the factors influencing farmers' time-to-adoption decisions as duration between year of commercialization of precision agriculture (PA) technologies and year of adoption, at the farm level.Design/methodology/approachTime-to-adoption, which is the difference in years between technologies becoming commercially available and the year of adoption was determined using non-parametric duration analysis, and the impact of specific farm/farmer characteristics on time-to-adoption were estimated using a semi-parametric Cox proportional-hazard (CPH) model, based on a panel dataset of 316 Kansas farms from 2002 to 2018.FindingsThe findings indicate that, time-to-adoption for embodied-knowledge technologies such as automated guidance and section control were statistically shorter than for information-intensive technologies such as yield monitors, precision soil sampling and variable rate fertility. Duration was indirectly (directly) proportional to commercialization date of embodied-knowledge (information-intensive) technology. More so, time-to-adoption statistically differed among technologies within these two broad categories. Time-to-adoption varies across farm location and between both types of technologies. Millennial farmers are more likely to adopt both types of technologies sooner compared to baby boomers. Net farm income, percentage changes in debt-to-asset ratio, corn to total crop acres and machinery investment had no significant impact on the time-to-adoption for both information-intensive and embodied-knowledge technologies. On the other hand, while variations exist, time-to-adoption of PA technologies is mainly driven by location of farm, generation of farmer, number of workers, years of farming experience, total acres cropped and the cost of crop insurance.Originality/valueThis study investigates how the financial position of farms, amongst other important factors might influence time-to-adoption of PA technologies. Results are useful to extension personnel and retailers for planning marketing or farm outreach programs taking into consideration that, time-to-adoption differs across regions and by specific characteristics, key amongst them: generation of farmer, number of workers, years of farming experience, total acres cropped and the cost of crop insurance.

APA, Harvard, Vancouver, ISO, and other styles

35

Evett, Steven R., Paul D. Colaizzi, Freddie R. Lamm, Susan A. O’Shaughnessy, Derek M. Heeren, Thomas J. Trout, William L. Kranz, and Xiaomao Lin. "Past, Present, and Future of Irrigation on the U.S. Great Plains." Transactions of the ASABE 63, no. 3 (2020): 703–29. http://dx.doi.org/10.13031/trans.13620.

Full text

Abstract:

Highlights Irrigation is key to the productivity of Great Plains agriculture but is threatened by water scarcity. The irrigated area grew to >9 million ha since 1870, mostly since 1950, but is likely to decline. Changes in climate, water availability, irrigated area, and policy will affect productivity. Adaptation and innovation, hallmarks of Great Plains populations, will ensure future success. Abstract. Motivated by the need for sustainable water management and technology for next-generation crop production, the future of irrigation on the U.S. Great Plains was examined through the lenses of past changes in water supply, historical changes in irrigated area, and innovations in irrigation technology, management, and agronomy. We analyzed the history of irrigated agriculture through the 1900s to the present day. We focused particularly on the efficiency and water productivity of irrigation systems (application efficiency, crop water productivity, and irrigation water use productivity) as a connection between water resource management and agricultural production. Technology innovations have greatly increased the efficiency of water application, the productivity of water use, and the agricultural productivity of the Great Plains. We also examined the changes in water stored in the High Plains aquifer, which is the region’s principle supply for irrigation water. Relative to other states, the aquifer has been less impacted in Nebraska, despite large increases in irrigated area. Greatly increased irrigation efficiency has played a role in this, but so have regulations and the recharge to the aquifer from the Nebraska Sand Hills and from rivers crossing the state. The outlook for irrigation is less positive in western Kansas, eastern Colorado, and the Oklahoma and Texas Panhandles. The aquifer in these regions is recharged at rates much less than current pumping, and the aquifer is declining as a result. Improvements in irrigation technology and management plus changes in crops grown have made irrigation ever more efficient and allowed irrigation to continue. There is good reason to expect that future research and development efforts by federal and state researchers, extension specialists, and industry, often in concert, will continue to improve the efficiency and productivity of irrigated agriculture. Public policy changes will also play a role in regulating consumption and motivating on-farm efficiency improvements. Water supplies, while finite, will be stretched much further than projected by some who look only at past rates of consumption. Thus, irrigation will continue to be important economically for an extended period. Sustaining irrigation is crucial to sustained productivity of the Great Plains “bread basket” because on average irrigation doubles the efficiency with which water is turned into crop yields compared with what can be attained in this region with precipitation alone. Lessons learned from the Great Plains are relevant to irrigation in semi-arid and subhumid areas worldwide. Keywords: Center pivot, Crop water productivity, History, Sprinkler irrigation, Subsurface drip irrigation, Water use efficiency.

APA, Harvard, Vancouver, ISO, and other styles

36

Rosenberg, Norman J., and Pierre R. Crosson. "The MINK Project: A New Methodology for Identifying Regional Influences of, and Responses to, Increasing Atmospheric CO2 and Climate Change." Environmental Conservation 18, no. 4 (1991): 313–22. http://dx.doi.org/10.1017/s0376892900022566.

Full text

Abstract:

In a study that was recently completed at Resources for the Future, the impacts of a future change in climate on the total economy of the Missouri–Iowa–Nebraska–Kansas (MINK) region were assessed, as were the possibilities of response (including adaptation) to the climatic change. Impacts on agriculture, forestry, water resources, and energy, were emphasized. The study was future-oriented, focusing on the year 2030, by which time the effects of ‘greenhouse’ warming may be felt. The records of the AD 1930s were used to provide an analog of the kinds of climate change (warmer and drier) that climate models predict will occur in the MINK region.Our results indicate that impacts of the projected climate change on agriculture, at least in the future, are expected to be profound, but that likely-to-be available technologies should facilitate substantial adaptation; that current water-resource limitations in the region would be exacerbated and lead to an eastward shift in irrigation; that impacts on forestry would be severe, and that opportunities for forestry adaptation would be very limited unless biomass production were to become economically viable; and that the net impacts on energy supply and demand would be small and adaptation to them relatively simple.Climate change in the MINK region could, of course, go somewhat beyond the conditions represented by the AD 1930s analog, in which case the findings of this study may be too optimistic. However, the future-oriented ‘MINK methodology’ is not scenario-dependent, and can be used to test other, more severe (or benign), scenarios as well. Further, the capacity for adaptation to climate change demonstrated in this study, may remain applicable even in more stringent circumstances.

APA, Harvard, Vancouver, ISO, and other styles

37

Ainsworth, Scott H. "Cultivating Congress: Constituents, Issues, and Interests in Agriculture Policymaking. By William P. Browne. Lawrence: University Press of Kansas, 1995. 295p. $29.95 hard, $14.95, soft." American Political Science Review 90, no. 1 (March 1996): 185–86. http://dx.doi.org/10.2307/2082824.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Hand, Ashley, and John Tyndall. "A Qualitative Investigation of Farmer and Rancher Perceptions of Trees and Woody Biomass Production on Marginal Agricultural Land." Forests 9, no. 11 (November 20, 2018): 724. http://dx.doi.org/10.3390/f9110724.

Full text

Abstract:

Bioenergy produced from perennial feedstocks such as woody biomass could serve as an opportunity to strengthen local and regional economies and also jointly produce various environmental services. In order to assess the potential for biomass-based bioenergy, it’s essential to characterize the interest that potential biomass suppliers have in such an endeavor. In the U.S. Great Plains region, this largely means assessing relevant perceptions of farmers and ranchers. We conducted a series of farmer and rancher oriented focus groups in North Dakota, South Dakota, Nebraska and Kansas to qualitatively explore opinions about the role that trees can play in agriculture and interest in woody biomass systems within existing Northern Great Plains (NGP) farms and ranches. Our findings suggest that farmer and ranchers generally value the role that trees, or tree-based practices like windbreaks can play in agriculture particularly on marginal farmland in terms of conservation or crop protection. Yet relative to the potential of trees as a biomass crop there is a distinct lack of knowledge and skepticism. Farmers and ranchers also noted variable degrees of risk concern and uncertainty regarding investing in tree-based systems, as well as a number of perceived external market related constraints to integrating trees within their managed systems. Most of the participants recognized that if biomass production or an increase in tree planting and management in general were to expand in the NGP region, government programs would likely be required to provide much needed technical guidance and financial incentives. As the NGP regional bioeconomy continues to emerge and expand, private and public investment relative to niche bioenergy feedstocks such as woody biomass should address the type of information needs that farmers and ranchers have relative to integrating biomass production into existing farm and ranch systems.

APA, Harvard, Vancouver, ISO, and other styles

39

Brooker, N. L., J. H. Long, and S. M. Stephan. "Field assessment of plant derivative compounds for managing fungal soybean diseases." Biochemical Society Transactions 28, no. 6 (December 1, 2000): 917–20. http://dx.doi.org/10.1042/bst0280917.

Full text

Abstract:

Natural plant-derived compounds are currently being explored as alternatives for pest control in sustainable agriculture. This study explored the use of two compounds, sesamol and carbenoxolone, in the management of the fungal soybean disease charcoal rot (Macrophomina phaseolina). Previous studies have determined that sesamol and carbenoxolone compounds significantly inhibited fungal pathogen growth and plant disease in vitro. In order to assess the field efficacy of these compounds for fungal disease control, 2 years of field testing of these compounds have been conducted in southeast Kansas. Field treatments of the compounds sesamol and carbenoxolone at three concentrations, 0,500 and 1000 μg/ml, were applied foliarly at four distinct plant developmental stages. Treatments were applied to plots in random triplicate array and the experiment was repeated during the 1998 and 1999 growing seasons. Disease assessments were based on visual disease ratings, plant mortality and soybean yield analysis. Data were recorded weekly for each treatment plot and statistically analysed using analysis of variance. Results indicate that sesamol and carbenoxolone treatments significantly decreased disease symptoms (11–12%) and plant mortality (24–28%) while significantly increasing soybean yields (18–38%). These results support that plant-derived compounds can have a significant impact on soybean disease management and yield under field conditions.

APA, Harvard, Vancouver, ISO, and other styles

40

Suski, Kaitlyn J., Tom C. J. Hill, Ezra J. T. Levin, Anna Miller, Paul J. DeMott, and Sonia M. Kreidenweis. "Agricultural harvesting emissions of ice-nucleating particles." Atmospheric Chemistry and Physics 18, no. 18 (September 28, 2018): 13755–71. http://dx.doi.org/10.5194/acp-18-13755-2018.

Full text

Abstract:

Abstract. Agricultural activities can modify natural ecosystems and change the nature of the aerosols emitted from those landscapes. The harvesting of crops can loft plant fragments and soil dust into the atmosphere that can travel long distances and interact with clouds far from their sources. In this way harvesting may contribute substantially to ice-nucleating particle (INP) concentrations, especially in regions where agriculture makes up a large percentage of land use. However, a full characterization of particles emitted during harvesting has not been reported. This study characterizes immersion mode INPs emitted during harvesting of several crops in the High Plains region of the United States. The Colorado State University Continuous Flow Diffusion Chamber (CFDC) and the Ice Spectrometer (IS) were utilized to measure INP concentrations during active harvesting of four crops in Kansas and Wyoming. Large spikes of INPs were observed during harvesting, with concentrations over 200 L−1 at −30 °C measured during a wheat harvest. To differentiate between mineral and organic components, a novel heating tube method was employed in real time upstream of the CFDC to deactivate organic INPs in situ. The results indicate that harvesting produces a complex mixture of organic, soil dust, and mineral components that varies for different crops. Electron microscopy analysis showed that while mineral components made up a large proportion of INPs, organic components comprised over 40 % of measured INPs for certain crops at warm temperatures. Heating and enzyme post-treatment of aerosol samples collected for IS processing indicated that bacteria and heat-labile and heat-stable organics contributed to wheat harvest-produced INPs. These results indicate that plant material and organic particles are a significant component of harvest INPs and their impacts on ice formation in clouds and precipitation on a regional scale should be explored.

APA, Harvard, Vancouver, ISO, and other styles

41

Hunt, Sherry L., Darrel M. Temple, Mitchell L. Neilsen, Abdelfatah Ali, and Ronald D. Tejral. "WinDAM C: Analysis Tool for Predicting Breach Erosion Processes of Embankment Dams Due to Overtopping or Internal Erosion." Applied Engineering in Agriculture 37, no. 3 (2021): 523–34. http://dx.doi.org/10.13031/aea.14334.

Full text

Abstract:

HighlightsThe computational models comprising the current version of WinDAM, called WinDAM C, are summarized.WinDAM C estimates the response of an earthen embankment subjected to overtopping or internal erosion.WinDAM C is a model that quantifies erosion/breach processes observed in physical embankment failure tests.Understanding the current technology and limitations provides a basis for further model development.Abstract. Internal erosion and overtopping erosion of earthen embankments are the leading causes for earthen embankment failures. Challenges like reservoir sedimentation, structural deterioration, rodent damage or tree root growth, and changing hazard classification from low to significant or high have arisen with aging dams. To address these challenges, new technology and tools for predicting the performance of homogeneous, cohesive earthen embankments during overtopping or internal erosion are needed. Windows Dam Analysis Modules (WinDAM) is a modular software application developed through collaborative efforts of the United States Department of Agriculture (USDA) Agricultural Research Service (ARS), the USDA-Natural Resources Conservation Service (NRCS), and Kansas State University (KSU) in response to this need. WinDAM uses a simple storage routing model to simulate flow through a reservoir and incorporates algorithms for predicting the progression of erosion resulting from embankment overtopping or flow through an internal discontinuity in the embankment. These algorithms are based on existing literature and data and observations from physical model experiments of homogeneous, cohesive embankments conducted by scientists at the USDA-ARS Hydraulic Engineering Research Unit in Stillwater, Oklahoma. The resulting computational model is a simplified representation of the observed process of progressive erosion that may lead to embankment breach. This paper reviews the components of the erosion/breach process and the way in which these components are quantified and integrated into the current WinDAM software, WinDAM C. The scope of application of the software, limitations, and computational assumptions are also discussed. Keywords: Breach, Dams, Erodibility, Erosion Process, Failure, Internal erosion, Model, Overtopping, Piping.

APA, Harvard, Vancouver, ISO, and other styles

42

Thompson, J. H. "Red Earth: Race and Agriculture in Oklahoma Territory. By Bonnie Lynn-Sherow. Lawrence: University Press of Kansas, 2004. vii + 186 pp. Illustrations, bibliography, notes, index. $29.95." Environmental History 10, no. 2 (April 1, 2005): 345–47. http://dx.doi.org/10.1093/envhis/10.2.345.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Yaege, J. R., and D. L. Stuteville. "Reactions in the Annual Medicago Core Germ Plasm Collection to Two Isolates of Peronospora trifoliorum from Alfalfa." Plant Disease 84, no. 5 (May 2000): 521–24. http://dx.doi.org/10.1094/pdis.2000.84.5.521.

Full text

Abstract:

Peronospora trifoliorum causes downy mildew of alfalfa throughout the temperate regions of the world, but little is known about its host range within the annual Medicago species (medics). Several medics have characteristics potentially beneficial to sustainable agriculture programs and to the genetic improvement of alfalfa. Therefore, we evaluated resistance in 199 accessions representing 33 species of the annual Medicago core germ plasm collection to P. trifoliorum isolates I7 and I8 from alfalfa from Kansas and southern California, respectively. Seedlings at the cotyledonary growth stage were inoculated with conidia suspended in water. One week later, the plants were rated resistant (no conidium production) or susceptible (conidium production). High levels of resistance existed in all species. All plants in 142 (71%) of the accessions were resistant to both isolates, but plants in only 24 of those resistant accessions were free of chlorotic to necrotic hypersensitive reactions on the inoculated cotyledons. All but one of the medic accessions had a higher percentage of plants resistant to both isolates than did cv. Saranac alfalfa, the resistant control. Conidium production generally was much less intense on the susceptible medic plants than on the alfalfa controls. A greater percentage of plants in four medic accessions was more resistant to I8 than to I7, and 22 were more resistant to I7 than to I8.

APA, Harvard, Vancouver, ISO, and other styles

44

Schwandt, E. F., D. U. Thomson, S. J. Bartie, and C. D. Reinhardt. "A survey of dry-processed-corn particle size and fecal starch in midwestern United States feedlots11Contribution no. 15-292-J from the Kansas Agriculture Experiment Station, Manhattan 66506." Professional Animal Scientist 31, no. 5 (October 2015): 467–72. http://dx.doi.org/10.15232/pas.2015-01392.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Lee, Joan. "Reviewer Acknowledgements for Journal of Plant Studies, Vol. 5, No. 2." Journal of Plant Studies 5, no. 2 (August 31, 2016): 79. http://dx.doi.org/10.5539/jps.v5n2p79.

Full text

Abstract:

Journal of Plant Studies wishes to acknowledge the following individuals for their assistance with peer review of manuscripts for this issue. Their help and contributions in maintaining the quality of the journal are greatly appreciated.Journal of Plant Studies is recruiting reviewers for the journal. If you are interested in becoming a reviewer, we welcome you to join us. Please find the application form and details at http://www.ccsenet.org/reviewer and e-mail the completed application form to jps@ccsenet.org.Reviewers for Volume 5, Number 2Adriana F. Sestras, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, RomaniaAnserd Foster, Kansas State University, United StatesChang-Jun Liu, Brookhaven National Laboratory, United StatesDenis Charlebois, Agriculture and Agri-food Canada, CanadaJuan K.Q. Solomon, University of Nevada, United StatesKinga Kostrakiewicz-Gieralt, Institute of Botany, Jagiellonian University, PolandMartina Pollastrini, University of Florence, ItalyQiuheng Lu, University of Virginia, United StatesRocío Deanna, Universidad Nacional de Córdoba, ArgentinaSaid Laarabi, University Mohammed V/Ministry of National Education, MoroccoSantiago Andrés-Sánchez, Universidad de Salamanca, SpainSlawomir Borek, Adam Mickiewicz University, PolandVatsavaya Satyanarayana Raju, Kakatiya University Warangal, IndiaXiaomin Wu, Loyola University Chicago, United StatesYoucef Halis, Scientific and Technical Research Centre for Arid Areas (CRSTRA), Algeria

APA, Harvard, Vancouver, ISO, and other styles

46

Williams, Kimberly A., Chad T. Miller, and Ward Upham. "Relationship between High School Student Participation in State-level Future Farmers of America Career Development Events and Matriculation at the Host University: A Case Study in Horticulture at Kansas State University." HortTechnology 26, no. 6 (December 2016): 862–68. http://dx.doi.org/10.21273/horttech03506-16.

Full text

Abstract:

In recent years, many horticulture departments around the United States have been concerned with recruiting and retaining an adequate number of students. One potential recruitment opportunity is the horticulture Future Farmers of America (FFA) Career Development Events (CDEs). For the time period of 1999 to 2012 (14 years), 1462 students participated in the annual state-level horticulture contests, comprising floriculture and nursery/landscape CDEs, held at Kansas State University (KSU). Using the rosters from these two CDEs, we referenced the university’s student information database to determine whether the high school students who participated as FFA horticulture CDE contestants ultimately matriculated to KSU. Fifty-two percent of former FFA horticulture CDE participants were accepted to KSU and 32% matriculated. Of these, 58% enrolled in the College of Agriculture and 19% majored in horticulture. Therefore, 3.5% of total horticulture CDE participants majored in horticulture at KSU. Students who participated in more than one horticulture CDE over time were more likely to major in horticulture at KSU compared with students who competed only once. Thirty-nine percent of students who participated in both horticulture CDEs pursued a baccalaureate program in horticulture. These two student characteristics could be used as indicator data points to target recruitment of future horticulture students. Data about the high school programs that generated contest participants were also summarized. Exceling in the CDE contests was not an indicator CDE participants would pursue a baccalaureate degree in horticulture. These analyses suggest FFA CDEs have some potential to optimize student recruitment efforts.

APA, Harvard, Vancouver, ISO, and other styles

47

Le Duc, Alice, Linda R. Parsons, and John C. Pair. "Growth, Survival, and Aesthetic Quality of Boxwood Cultivars as Affected by Landscape Exposure." HortScience 35, no. 2 (April 2000): 205–8. http://dx.doi.org/10.21273/hortsci.35.2.205.

Full text

Abstract:

Three cultivars of boxwood, `Winter Gem' (Buxus microphylla Sieb. & Zucc.), `Green Velvet', and `Green Mountain' [B. sinica (Rehd. & Wils.) Cheng var. insularis (Nakai) M. Cheng × B. sempervirens L. `Suffruticosa' L.], were planted in 12 different landscape exposures (N, ENE, NNE, E, SSE, ESE, S, WSW, SSW, W, NNW, WNW) at Manhattan and Wichita, Kans., representing U.S. Dept. of Agriculture hardiness zones 5 and 6, respectively. In Kansas, winter stress is often the greatest threat to plant survival, and Winter 1995-96 was one of great extremes. Official lows of -25 °C for Manhattan and -23 °C for Wichita were recorded, along with sharp 24-hour temperature drops of 31-32 °C in January and March. Differences in cultivar performance were noted between sites. Better winter quality was exhibited by `Green Velvet' and `Green Mountain', although significant bronzing occurred on the former in Manhattan. Locations on N, ENE, NNE, NNW, and WNW exposures resulted in better plant quality of all cultivars, whereas plant performance was poorer at S and SE exposures. Differences in canopy temperatures of up to 15.7 °C were recorded, on the same cold winter day, between NNW and ESE. Recovery from winter dieback and growth during Summer 1996 varied with cultivar, site, and exposure. `Winter Gem' grew most in height, and `Green Velvet' grew most overall at Manhattan. Growth rates were dependent on exposure, with greater growth at NNE, E, SSW, and WNW. Performance of `Green Velvet' and `Green Mountain' indicated that they could be used in any exposure with conditions similar to those of the test sites.

APA, Harvard, Vancouver, ISO, and other styles

48

Mrad, Assaad, Gabriel G. Katul, Delphis F. Levia, Andrew J. Guswa, Elizabeth W. Boyer, Michael Bruen, Darryl E. Carlyle-Moses, et al. "Peak grain forecasts for the US High Plains amid withering waters." Proceedings of the National Academy of Sciences 117, no. 42 (October 5, 2020): 26145–50. http://dx.doi.org/10.1073/pnas.2008383117.

Full text

Abstract:

Irrigated agriculture contributes 40% of total global food production. In the US High Plains, which produces more than 50 million tons per year of grain, as much as 90% of irrigation originates from groundwater resources, including the Ogallala aquifer. In parts of the High Plains, groundwater resources are being depleted so rapidly that they are considered nonrenewable, compromising food security. When groundwater becomes scarce, groundwater withdrawals peak, causing a subsequent peak in crop production. Previous descriptions of finite natural resource depletion have utilized the Hubbert curve. By coupling the dynamics of groundwater pumping, recharge, and crop production, Hubbert-like curves emerge, responding to the linked variations in groundwater pumping and grain production. On a state level, this approach predicted when groundwater withdrawal and grain production peaked and the lag between them. The lags increased with the adoption of efficient irrigation practices and higher recharge rates. Results indicate that, in Texas, withdrawals peaked in 1966, followed by a peak in grain production 9 y later. After better irrigation technologies were adopted, the lag increased to 15 y from 1997 to 2012. In Kansas, where these technologies were employed concurrently with the rise of irrigated grain production, this lag was predicted to be 24 y starting in 1994. In Nebraska, grain production is projected to continue rising through 2050 because of high recharge rates. While Texas and Nebraska had equal irrigated output in 1975, by 2050, it is projected that Nebraska will have almost 10 times the groundwater-based production of Texas.

APA, Harvard, Vancouver, ISO, and other styles

49

Kucharik, Christopher J., and Navin Ramankutty. "Trends and Variability in U.S. Corn Yields Over the Twentieth Century." Earth Interactions 9, no. 1 (March 1, 2005): 1–29. http://dx.doi.org/10.1175/ei098.1.

Full text

Abstract:

Abstract The United States is currently responsible for 40%–45% of the world’s corn supply and 70% of total global exports [the U.S. Department of Agriculture–National Agricultural Statistics Service (USDA–NASS)]. Therefore, analyses of the spatial and temporal patterns of historical U.S. corn yields might provide insight into future crop-production potential and food security. In this study, county-level maize yield data from 1910 to 2001 were used to characterize the spatial heterogeneity of yield growth rates and interannual yield variability across the U.S. Corn Belt. Widespread decadal-scale changes in corn yield variability and yield growth rates have occurred since the 1930s across the Corn Belt, but the response has varied substantially with geographic location. Northern portions of the Great Plains have experienced consistently high interannual corn yield variability, averaging 30%–40% relative to the mean. Increasing usage of irrigation in Nebraska, Kansas, and Texas, since the 1950s, has helped boost yields by 75%–90% over rain-fed corn, creating a yield gap of 2–4 T ha−1 between irrigated and nonirrigated corn that could potentially be exploited in other regions. Furthermore, irrigation has reduced interannual variability by a factor of 3 in these same regions. A small region from eastern Iowa into northern Illinois and southern Wisconsin has experienced minimal interannual yield variability, averaging only 6%–10% relative to mean yields. This paper shows that the choice of time period used for statistical analysis impacted conclusions drawn about twentieth-century trends in corn yield variability. Widespread increases in yield variability were apparent from 1950 onward, but were not significant over the entire 1930–2001 period. There is also evidence that yield variability decreased from the early 1990s to 2001. Corn yield growth rates peaked at an annual-average rate of 3%–5% in the 1960s (124.5 kg ha−1 yr−1), but have steadily declined to a relative rate of 0.78% yr−1 (49.2 kg ha−1 yr−1) during the 1990s. A general inverse relationship between increasing corn yield and decreasing yield growth rates was noted after county-level yields reached 4 T ha−1, suggesting that widespread, significant increases in corn yield are not likely to take place in the future, particularly on irrigated land, without a second agricultural revolution.

APA, Harvard, Vancouver, ISO, and other styles

50

Goodband, Robert D. "4 Protein and Amino Acid Concepts and Use in Swine Nutrition: Gary Allee’s Contributions to the Swine Industry." Journal of Animal Science 99, Supplement_1 (May 1, 2021): 16. http://dx.doi.org/10.1093/jas/skab054.028.

Full text

Abstract:

Abstract I was very fortunate to meet Gary Allee in 1984 when I began my M.S. degree at Kansas State University. I’ll remember Gary most in that he cared about people and truly wanted to serve humanity and make the world a better place through animal agriculture. He helped develop scholars, both nationally and internationally, that would be the future of our industry. Gary was proficient in seeking a solution to a problem and finding the experimental resources to explain it. Very early in his career, he helped verify the concept of a lysine:calorie ratio as a means of explaining the previously varied and inconsistent response to added fat in swine diets. Early research outlined the order of limiting amino acids in various feed ingredients. Gary’s research also focused on determining the nutritional value of protein sources for weanling pigs, such as dried whey, fish meal and dried skim milk that ultimately led to phase feeding strategies for early weaned pigs that are the backbone of our industry. Gary and his students determined lysine and other amino acid requirements for growing pigs and sows under field conditions. He helped elucidate the effects of low-protein, amino acid fortified diets under heat stress environments. As market weights increased, his research was instrumental in determining how to feed heavy weight pigs as well as those fed ractopamine. Gary grasped concepts and applied them into practical solutions in swine nutrition. He was a strong believer and leader in cooperative research among universities but also, at that time, a novel concept of university-industry partnerships. Those of us that can say they knew Gary Allee, are very fortunate and better because of it.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Agriculture Kansas'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles