Relevant bibliographies by topics / Agronomy and Crop Sciences

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Agronomy and Crop Sciences'

Author: Grafiati
Published: 4 June 2021
Last updated: 14 February 2022

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Journal articles on the topic "Agronomy and Crop Sciences"

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ANDERSSON, JENS A., and KEN E. GILLER. "DOING DEVELOPMENT-ORIENTED AGRONOMY: RETHINKING METHODS, CONCEPTS AND DIRECTION." Experimental Agriculture 55, no. 2 (March 13, 2019): 157–62. http://dx.doi.org/10.1017/s0014479719000024.

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This special issue brings together a selection of papers that not merely present agronomic research findings, but critically review orientations, methodologies and research practices in agronomy. The focus is on agronomic research as it conducted as component of rural development efforts in the global South or, in short, development-oriented agronomy. Aiming to contribute to development challenges like food security, human welfare and wellbeing, and environmental sustainability, a focus on development-oriented agronomy implies a step beyond a narrow understanding of agronomy as the science of crop production and soil management. Doing development-oriented agronomy forefronts the juggling with productivity enhancing, environmental and social developmental goals entailed when doing agronomy. What is more, development-oriented agronomy generally takes place within a complex environment of (inter)national research and development policy organisations, development donor-funded projects, governmental, NGO and private sector agencies and global professional networks and (public–private) partnerships. Consequently, development-oriented agronomy is a field where debate and contestations over goals and direction, research methodologies and findings of agronomic research are first likely to emerge and become apparent.
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Amgain, Lal Prasad, Sudeep Marasini, and Buddha BK. "A glimpse on post-graduate thesis researches of Agronomy Department of IAAS and prioritized future research directions." Journal of Agriculture and Natural Resources 1, no. 1 (December 9, 2018): 90–113. http://dx.doi.org/10.3126/janr.v1i1.22225.

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To appraise the major research outputs of agronomic crops and cropping systems and to direct the future research priorities of Agronomy Department of post-graduate (PG) program of Institute of Agriculture and Animal Sciences (IAAS), a rigorous review was accomplished on about two decadal (2000-2018) student’s thesis research works. The review revealed that the agronomic researches at IAAS from 2000 to 2012 were concentrated mostly in on-station farm of Rampur, Chitwan and found their focus on 11 food grain crops with five major themes viz. varietal evaluation, crop management, soil nutrient and weeds management, and crop simulation modeling. With the shifting of IAAS PG program from Rampur to Kirtipur in 2013, the major agronomic researches were found to be concentrated in on-farm stations due to transitional movement of IAAS to Agriculture and Forestry University, Nepal. A total of 115 agronomic studies were conducted on various crops, of which 92 were on cereals, 8 on legumes, oilseed and minor cereals including potato. There were records of 10 studies on rice-wheat and 3 studies on maize-based systems. The huge gaps between the potential and farmers' field yield and between the potential and research station yields for rice, maize and wheat crops suggested a great scope to raise yields of cereals by improved agronomical researches on varieties evaluation, crop and nutrient management and weed management. Simulation modeling study predicted that the varieties of rice and maize adopted at present could sustain the yields only for recent few years and needed for introduction of new climate resilient varieties, then after. Innovative and new researches on eco-region suited on-farm trails with variety identification, improved crop husbandry and soil nutrient management, improved weed and water management and on agro-meteorology, conservation agriculture, climate change adaptation and crop simulation modeling are advised as future research frontiers to uplift the productivity and reduce yield gaps of major food crops and to strengthen the academics of post-graduate research in near future.
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Raun, W. R., N. T. Basta, J. A. Hattey, H. Zhang, and G. V. Johnson. "Changing Departmental Names from Agronomy to Plant, Crop, and Soil Sciences." Journal of Natural Resources and Life Sciences Education 27, no. 1 (1998): 113–16. http://dx.doi.org/10.2134/jnrlse.1998.0113.

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Aleixandre-Tudó, J. L., L. Castelló-Cogollos, J. L. Aleixandre, and R. Aleixandre-Benavent. "Emerging topics in scientific research on global water-use efficiency." Journal of Agricultural Science 157, no. 6 (August 2019): 480–92. http://dx.doi.org/10.1017/s0021859619000789.

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AbstractA bibliometric analysis of research articles published on water-use efficiency was performed using the Web of Science database and evaluated. Journal titles, publication years, subject categories, keywords and countries publishing were obtained. A number of 2077 papers were retrieved, two-thirds of them published in the last decade. The articles were published in 439 journals, with Agricultural Water Management, Agronomy Journal, Crop Science, Field Crops Research and Indian Journal of Agricultural Sciences the most productive. Most of the leading productive journals have Impact Factors in the top quartiles of the Journal Citation Reports. Agronomy, Plant Sciences, Water Resources and Agriculture Multidisciplinary were the most common journal subject categories, indicating a wide diversity of research fields ascribed to this topic. The predominant key words and phrases used were growth, ‘carbon isotope discrimination’, yield, photosynthesis, ‘gas exchange’, evapotranspiration and ‘stomatal conductance’. The productivity ranking for countries was headed by China (456 papers), followed by the USA (410), Australia (176) and India (165). A content analysis of the papers made identification of the key issues of greatest scientific concern possible, as well as their evolution over time. The most cited papers relate to physiological aspects, but also important studies on experimental biology, drought resistance, effects of climate, crop production and ecology, among others.
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"Transgenic Crops: How Genes Jump from Crop to Crop." Asian Journal of Crop Science 3, no. 1 (December 15, 2010): 49–50. http://dx.doi.org/10.3923/ajcs.2011.49.50.

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Drake, W. L., D. L. Jordan, M. Schroeder-Moreno, P. D. Johnson, J. L. Heitman, Y. J. Cardoza, R. L. Brandenburg, et al. "Crop Response following Tall Fescue Sod and Agronomic Crops." Agronomy Journal 102, no. 6 (November 2010): 1692–99. http://dx.doi.org/10.2134/agronj2010.0236.

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Hansen, Neil, Sarah Ward, Raj Khosla, Jack Fenwick, and Bill Moore. "What Does Undergraduate Enrollment in Soil and Crop Sciences Mean for the Future of Agronomy?" Agronomy Journal 99, no. 4 (July 2007): 1169–74. http://dx.doi.org/10.2134/agronj2006.0318.

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Yang, Rong-Cai, and Patricia Juskiw. "Analysis of covariance in agronomy and crop research." Canadian Journal of Plant Science 91, no. 4 (July 2011): 621–41. http://dx.doi.org/10.4141/cjps2010-032.

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Yang, R.-C. and Juskiw, P. 2011. Analysis of covariance in agronomy and crop research. Can. J. Plant Sci. 91: 621–641. Analysis of covariance (ANCOVA) is a statistical technique that combines the methods of the analysis of variance (ANOVA) and regression analysis. However, ANCOVA is an advanced topic that often appears towards the end of many textbooks, and thus, it is either taught cursorily or ignored completely in many statistics classes. Additionally, many elaborated applications of ANCOVA to agronomy and crop research along with uses of the latest statistical software are rarely described in textbooks or classes. The objectives of this paper are to provide an overview on conventional ANCOVA and to introduce more advanced uses of ANCOVA under mixed models. We describe three elaborate applications including (i) the use of ANCOVA for dissecting dosage responses for different treatments, (ii) stability of treatments across multiple environments and (iii) removal of spatial variation that is not effectively controlled by blocking. These analyses illustrate that ANCOVA is either a simpler analysis or provides more information than conventional statistical methods. We provide a technical appendix ( Appendix A ) on principles and theory underlying mixed-model analysis of ANCOVA along with SAS programs ( Appendix B ) for more uses and in-depth understanding of this powerful technique in agronomy and crop research.
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Carter, M. R. "Humic substances in soil and crop sciences." Soil and Tillage Research 23, no. 4 (May 1992): 375–77. http://dx.doi.org/10.1016/0167-1987(92)90083-n.

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Schoofs, A., M. H. Entz, R. C. Van Acker, J. R. Thiessen Martens, and D. A. Derksen. "Agronomic performance of Pesticide Free Production under two crop rotations." Renewable Agriculture and Food Systems 20, no. 2 (June 2005): 91–100. http://dx.doi.org/10.1079/raf2004100.

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AbstractPesticide Free Production (PFP) is a pesticide reduction system that removes in-crop pesticide use on a yearly basis. A long-term study was established in 2000 to investigate the effect of crop rotation and frequency of inclusion on the success of PFP, as well as the effect of PFP on subsequent crops in the rotation. The crop rotations being compared were linola–oat–canola–wheat and linola–oat–alfalfa–alfalfa. PFP occurred either once in the rotation (oat) or twice (linola–oat). Weed density and yield were measured in the crops that followed PFP. Oat was a more successful PFP crop than linola because it was better able to compete with weeds. Furthermore, PFP oat had a higher weed density when it followed PFP linola, but this did not influence PFP oat yield. Under the conditions of this study, PFP linola was more successful in the annual crop rotation. Inclusion of alfalfa hay crops in the crop rotation was not effective in lowering weed pressure and, in fact, may have contributed to an increase in weed density. It is concluded that weed species present influenced the effectiveness of alfalfa in facilitating PFP, because major weeds in the study are not effectively controlled by alfalfa. PFP did not have a negative effect on following crops in the rotation (i.e. canola–wheat or alfalfa), regardless of whether one or two consecutive years of PFP occurred in the rotation. No additional herbicide was necessary for weed control in the crops that followed PFP; however, alfalfa hay was weedier for the first year following PFP. This study indicates that PFP is a viable way to reduce herbicide use in a cropping system and that attention needs to be paid to PFP crop selection and crop rotation, particularly when the PFP crop is less competitive with weeds.
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Dissertations / Theses on the topic "Agronomy and Crop Sciences"

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Hurley, Shannon. "Oats as a Companion Crop for Alfalfa: Establishment Methods." TopSCHOLAR®, 1994. http://digitalcommons.wku.edu/theses/971.

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Companion crops are commomly seeded with alfalfa in the spring as an establishment method. The objectives of this research were to evaluate the performance of seedling Alfalfa (Medicago sativa L.) in terms of yield when grown with spring oats (Avena sativa) as a companion crop and to evaluate the amount of weed control in the alfalfa companion crop seeding, under various management practices. Six establishment treatments were imposed: (1) solo-seeded alfalfa raised according to standard procedures recommended for Kentucky, (2) solo-seeded alfalfa with a herbicide treatment, (3) alfalfa seeded with an oat companion crop and treated with a herbicide, (4) alfalfa seeded with an oat companion crop with harvest at 10cm to 21cm of height, (5) alfalfa seeded with an oat companion crop, oats removed for haylage, and (6) alfalfa seeded with an oat companion crop, allowing the oats to produce seed before harvest. In the first seeding year (1992) the alfalfa and oat companion crop that was treated with a grass herbicide had siginificantly higher yields than the check or alfalfa and oat companion crop that was allowed to produce seed. In the second seeding year (1993) there were no significant differences among the establishment methods. The second year of the 1992 seeding experiment had unexpected results. The alfalfa and oat companion crop treated with a grass herbicide had greater yields compared to all other treatments except the alfalfa and haylage oat companion crop treatment. These results indicate that proper management of the companion crop system for highest yields and best performance of alfalfa has not been determined or established.
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Okito, Pungu. "Origins Of The Y Genome In Elymus." DigitalCommons@USU, 2008. https://digitalcommons.usu.edu/etd/95.

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The Triticeae tribe DUMORTER in the grass family (Poaceae) includes the most important cereal crops such as wheat, barley, and rye. They are also economically important forage grasses. Elymus is the largest and most complex genus with approximately 150 species occurring worldwide. Asia is an important centre for the origin and diversity of perennial species in the Triticeae tribe, and more than half of the Elymus are known to occur in the Asia. Cytologically, Elymus species have a genomic formula of StH, StP, StY, StStY, StHY, StPY, and StWY. About 40% of Elymus species are still unknown for the genomic constitution and some have questionable genomic combination. However, the origin of the Y genome is unknown. In order to identify the origin of the Y genome, 212 accessions of Elymus, Pseudoroegneria, and Hordeum species were tested using a Y genome specific Sequence Tagged Site (STS) marker. We obtained evidence supporting the hypothesis that the Y genome in some Elymus species shared a progenitor genome with the St genome. Our study suggested that Pseudoroegneria spicata (PI 232134), P. ferganensis (T 219), and P. libanotica (PI401326) are the donors of the Y genome in the Elymus species. The DNA sequences of the Y-genome marker in these three Pseudoroegneria species are more similar to those obtained from Elymus species having the Y genome than those from Hordeum marinum and H. murinum, making the Xa and Xu genomes less likely the donors of Y genome.
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Goossen, Caleb. "Management Factors Influence On The Fatty Acid Content And Composition Of Forages." ScholarWorks @ UVM, 2018. https://scholarworks.uvm.edu/graddis/920.

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Demand for ruminant-derived products high in beneficial fatty acids (FA) has led to a desire to maximize the alpha-linolenic acid (ALA) and total FA (ΣFA) content of forage crops. Several management factors affect the ALA and ΣFA content of forages, including phenology, species, season, and nitrogen fertility. Yet, the influence of harvest management decisions that affect wilting time of conserved forages is under-studied. Similarly, the majority of published research regarding ALA and ΣFA content is of cool season (C3 photosynthetic) temperate perennial forage species, and not warm season (C4 photosynthetic) annual species. Sample preservation methodologies used in published research are often too expensive and time consuming for desired practicality, or unreliable. This dissertation aids in addressing these deficiencies. In the first study, forced hot air drying of forage samples was shown to be unreliable for accurate FA analysis, and an alternative methodology was established utilizing brief microwave pretreatment of small fresh weight samples prior to forced hot air drying, yielding results similar in accuracy to lyophilized samples. Oxidative losses of ground dried forage samples were also examined, again suggesting that microwave pretreatment prior to forced hot air drying is a fast, inexpensive and otherwise desirable choice for forage sample preservation in anticipation of later FA analysis. A second study investigated two warm season annual forage species (sorghum-sudangrass and pearl millet), showing that maturity-associated declines in whole plant ALA and ΣFA content are largely a product of an increasing ratio of ALA- and ΣFA-scarce pseudostem fractions, and only secondarily resultant of maturity associated declines within individual plant fractions. Lamina mass ratio was identified as a correlate with ALA and ΣFA content, at least as useful as two common correlates - crude protein and neutral detergent fiber content. A third study also showed the critical influence of crop maturity upon ALA and ΣFA content in two warm season annual forages (pearl millet and sudangrass), in addition to differences between species and those resultant from differing nitrogen fertility. Conserved forage harvest decisions were evaluated in the fourth study. No difference was found between wide and narrow swath treatments (70% and 40% of mower width, respectively) of AM and PM mown reed canarygrass, but there was evidence to suggest that AM mowing may allow for a higher content of ALA and ΣFA content relative to PM mowing. Ensiling was also found to decrease ALA content or proportion. In conclusion, management choices promoting grazing and/or harvesting of a higher laminae proportion, optimizing nitrogen fertility, and suitable choice of species for meeting these goals may be the best way to maximize the ALA and ΣFA content of forages grown for livestock. AM mowing may reduce ALA and ΣFA content losses otherwise caused by overnight wilting of forages mown for conservation, and microwave pretreatment prior to forced hot air drying is an advisable sample preservation methodology for researchers furthering the study of forage ALA and ΣFA content, when lyophilization is impractical or too expensive.
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Mauritson, Cameron John. "The Fruiting and Berry-Chemistry Responses of Zinfandel Grapes to Cluster Thinning." DigitalCommons@CalPoly, 2009. https://digitalcommons.calpoly.edu/theses/60.

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A field experiment was conducted in the Rockpile appellation of Sonoma County during 2007 and 2008. The experimental design was a randomized complete block with five replicates. Zinfandel vines were subjected to three levels of cluster thinning during the lag phase of berry growth: vines were thinned to 2 clusters per shoot with shoulders retained if present (2CS), 1 cluster per shoot with shoulders retained if present (1CS), or 2 clusters per shoot with shoulders removed if present (2CNS). Cluster thinning Zinfandel grapevines during lag phase led to reductions in yield and crop load and increased °Brix of the fruit. In both years, wines that were made from vines with the lowest crop load had consistently higher amounts of small and large polymeric pigments, tannins and total iron-reactive phenolics. Cluster thinning vines to 2CNS at lag phase consistently decreased the number of berries per cluster and cluster weight. Thinning vines to 1CS resulted in fewer clusters per vine in 2008. Botrytis bunch rot tends to develop between the shoulder or wing and the main cluster in certain varieties. Shoulder removal in areas with a high risk of Botrytis should conclusively determine if this thinning method helps to decrease disease incidence. Additional research is also recommended with other varieties to assess possible differences between shoulder thinning and removing entire clusters on berry composition, yield, subsequent wine composition and crop load.
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Lueck, Andrew Bruce. "Environmental Conditions, Variety, and Application Timing Influence on S-Metolachlor Sugarbeet Crop Safety." Thesis, North Dakota State University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10269346.

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Glyphosate-resistant weeds in North Dakota and Minnesota sugarbeet growing regions have necessitated research on S-metolachlor. S-metolachlor can be applied early-postemergence in sugarbeet but has not been labeled preemergence as reductions in sugarbeet safety have been observed. Field and growth chamber experiments were conducted to determine crop safety from S-metolachlor applied preemergence. S-metolachlor readily bonds to soil clay and organic matter. High clay and organic matter soils buffer S-metolachlor from soil solution and increase crop safety. Sugarbeet emergence was affected by soil series, temperature, and soil water, but was not affected by S-metolachlor or S-metolachlor rate. S-metolachlor affected sugarbeet growth, but a rate of 0.54 kg ai ha -1 was safe across soils and growing conditions. No differences in varietal tolerance were observed. S-metolachlor applied immediately after planting or at the cotyledon and two-leaf stage injured sugarbeet less than application 3, 5, or 7 d after planting.

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Thompson, Leslie. "Efficacy of Sucker Control Method and Effect of Topping Height on Axillary Bud Growth in Dark Fire-Cured Tobacco." TopSCHOLAR®, 2001. http://digitalcommons.wku.edu/theses/640.

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The removal of terminal buds (topping) and sucker control are two practices that have an impact on yield and quality of dark tobacco (Nicotiana tabacum L.). Topping breaks apical dominance and encourages the growth of axillary buds (suckers). Following topping, growth regulator chemicals known as suckercides are commonly used to prevent axillary bud growth. Research has demonstrated that topping time, height, and sucker control method influence the quality and yield of the final product. Delaying topping past a critical developmental stage has been shown to reduce leaf yield. Topping height varies among geographical regions with most dark tobacco producers topping to a height of 12 to 16 leaves. Previous studies indicate that plants topped to 16 leaves had higher leaf yields than those topped to 12 leaves if late-season soil moisture was adequate. The opposite effect was observed when late-season soil moisture was below average because the small upper leaves on plants topped to 16 leaves did not receive the moisture needed for proper development. The moisture they did receive could have been diverted to improve the yield and quality of the larger, more valuable leaves if the smaller ones had been removed. Several options exist for chemical control of tobacco axillary buds ranging from contact to systemic materials. Performance of these materials is influenced by several factors including environmental conditions prior to and following application. Research plots were established at Western Kentucky University's Agricultural Research and Education Complex in Bowling Green, Kentucky to evaluate the efficacy of various sucker control methods and evaluate the effect of topping height on axillary bud growth. Data collection was completed in the summer of 2000. Three sucker control methods and three topping heights were investigated. The first sucker control method was a single application of a local systemic suckercide at topping. The second method was a sequential application using a contact suckercide at topping followed by a local systemic applied seven days later. The third method, which served as the control, was topping the plants but not applying any suckercides. The experiment utilized a split-plot design with 9 treatments and 4 replications. The plots consisted of two 7 m rows per plot, with 102 cm row spacing and 89 cm in-row spacing. Data collected include number of suckers per plant and kilograms of sucker biomass per plant. Statistical analysis indicated no sucker control method by topping height interaction; thus sucker control and height data are discussed separately. Suckers per plant and sucker biomass per plant did not differ among those plots receiving a suckercide application. Topping height did not influence sucker number or biomass.
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Mathews, David. "A Comparative Study of Composted Organic Wastes and IBDU Fertilizer in Nitrogen Utilization by Bentgrass Cultivars." TopSCHOLAR®, 2001. http://digitalcommons.wku.edu/theses/675.

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This research project that was conducted to provide evidence that composted organic waste materials do provide comparable nitrogen absorption efficiency in relation to an organic slow release fertilizer. Western's compost facility supplied the two different organic wastes, which had been composted for 1 year. The materials used were composted urban leaf litter, sawdust/manure mixture at a 50/50 ratio by volume and an organic fertilizer IBDU. These materials were applied to one cultivars of (Agrostis capillaries) and three cultivars of (A. palustris) at the rate of .S^/IOOO**2 in the months of April, June, and September. The plots were sampled one month after application to evaluate the nitrogen concentration of the leaf and thatch material. The nitrogen concentration was measured by using a Leco 2000 CHN provided in the Dept. of Chemistry. In comparison of N recovery in leaves, "Exeter" had lower N concentration than the other cultivars in October and no difference in May and July of the first year. The leaf concentration for the second year showed that Penncross and L-93 were lower in May and were the same for the other two sample dates. There was no difference found in the N concentration of thatch among the fertilizer sources for both years. IBDU showed better N recovery in all but the last sample date where all treatments were the same.
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Sabal, Harry. "Molecular Characterization of Citrus Tristeza Virus Isolates in Commercial Citrus Grown in Belize." TopSCHOLAR®, 2001. http://digitalcommons.wku.edu/theses/699.

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Isolates of Citrus Tristeza Virus (CTV) in Belize may be causing inverse stem pitting, stunting, and slow decline on sweet and sour orange rootstock combination on field trees. One isolate on Cleopatra mandarin rootstock expressed no field symptoms but may be a possible source of a detrimental isolate to more susceptible citrus rootstock combinations. Field plants and field source inoculated indicator plants were used in this study. The first objective was to determine whether field trees of sweet Valencia orange trees that expressed symptoms of CTV would test positive to a polyclonal (mild and severe symptoms) and a monoclonal (severe decline) antibody. Of the 81 trees tested, 56% tested positive to a polyclonal antibody G-604. None of the trees tested positive to the monoclonal antibody MCA-13. The second objective was to determine the biological and serological reactivity on host indicator plants of some of the most symptomatic trees having highest optical density value readings from the ELISA test. Mexican lime showed mild to moderate vein clearing on three of the isolates tested, while sweet orange showed mild to moderate translucent veins on two of the isolates tested. Four isolates from the indicator host plants tested positive to polyclonal antibody G-604 but none tested positive to MCA-13. The third objective was to determine if there were any differences among the nucleotide sequences of three CTV isolates. The CTV coat protein gene (CPG) of isolates which reacted to a polyclonal antibody G-604 but not to monoclonal antibody (MCA-13) was selectively amplified by polymerase chain reaction from infected tissue extracts and sequenced using negative sense CN 407 primer. All three isolates revealed between ninety-eight and ninety percent significant identities to known CTV isolates previously characterized from citrus growing regions around the world.
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Oveson, Dawn. "Efficacy of Soybean Herbicides on Annual Morninglory." TopSCHOLAR®, 2001. http://digitalcommons.wku.edu/theses/691.

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Field experiments were established in 2000 and 2001 at the Agricultural Research and Education Complex in Bowling Green, Kentucky to evaluate herbicide efficacy on annual morningglory (Ipomoea spp.) species and other weeds. A randomized complete block design was utilized in each study with each treatment being replicated three times. Plots consisted of four 76 cm rows, 9.1 m in length. The two center rows of each plot were treated, with the outside rows of each plot serving as a weedy check. Crop response, weed control, and grain yield data were collected. Four different experiments were conducted. Two experiments utilized treatments of glyphosate and sulfosate alone and with tankmixes on glyphosate-tolerant soybeans. Two experiments examined various herbicide tankmixes applied to non-glyphosatetolerant soybeans. Soybean injury influenced by postemergence treatments of glyphosate and sulfosate alone and with chlorimuron-ethyl ranged from 0 to 5% four days after treatment (DAT) with the addition of chlorimuron-ethyl resulting in greater injury. Morningglory control 14 DAT ranged from 48 to 63% with sulfosate at 700 g ai/ha providing less control than glyphosate at 1120 g ai/ha. No treatment differences occurred 29 and 42 DAT. No statistical differences among treatments occurred among other weed species evaluated. Soybean injury influenced by postemergence treatments of glyphosate and sulfosate alone and with fomesafen and chloransulam-methyl 4 DAT ranged from 0 to 17% with the addition of fomesafen resulting in greater injury than the addition of chloransulam-methyl. Momingglory control 14 DAT ranged from 60 to 88% with glyphosate + imazethapyr at 840 + 71 g ai/ha providing the least control and sulfosate + fomesafen at 700 + 201 g ai/ha providing greater control. Soybean injury influenced by pre and postemergence treatments 7 DAT ranged from 0 to 30% in conventional soybeans. Applications of carfentrazone resulted in the greatest injury. Momingglory control 20 days after planting (DAP) ranged from 0 to 99% with chloransulam + sulfentrazone providing the highest control. Momingglory control 28 DAT ranged from 30 to 99% with s-metolachlor + metribuzin + acifluorfen + fenoxaprop-ethyl + fluazifop-P providing the least control. Common cocklebur control ranged from 13% to 97% 20 DAP with pendimethalin + imazethapyr providing the least control. Treatments containing aciflourfen + bentazon controlled common cocklebur > 80% 28 DAT. Soybean injury influenced by preemergence and postemergence treatments 7 DAT in conventional soybeans ranged from 0 to 33% with sulfentrazone + clomazone + chlorimuron-ethyl + carfentrazone resulting in the greatest injury. Momingglory control 7 DAT ranged from 0 to 99% with sulfentrazone + clomazone plus chlorimuron-ethyl + carfentrazone having the greatest control. Momingglory control 28 DAT ranged from 82 to 94% with no differences among treatment.
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Kelley, Tracy. "Efficacy, Phytotoxicity, and Cover Crop Response of Herbicide Combinations in Dark Fire Cured Tobacco." TopSCHOLAR®, 2000. http://digitalcommons.wku.edu/theses/724.

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Field studies were established during the summer of 1999 at the Agricultural Research and Education Complex of Western Kentucky University to evaluate efficacy, phytotoxicity, and cover crop response of herbicide combinations in dark fire cured tobacco. A randomized complete block design was used with nine treatments replicated three times. Hydroponic tobacco transplants (c.v. 'TND950') were established on May 20,1999 in a conventionally tilled system on a Pembroke silt loam (Mollic Palleudalf) with a pH of 5.8 and an organic matter content of 1.2%. The transplants were established at a population of approximately 10,278 plants/ha. Herbicide treatments were applied on May 19, 1999 with a CO2 backpack sprayer. Sulfentrazone as Spartan 75DF was applied in all nine treatments at a rate of 0.47 kg pr/ha. Six of the nine treatments included various rates of clomazone as Command 3ME. Two of the nine treatments included napropamide as Devrinol 50DF. Visual evaluations of crop phytotoxicity due to herbicide application were recorded at 21 and 44 days after treatment (DAT). Weed control was evaluated at 21, 29, 44, and 58 DAT for the following species: Ipomoea hederacea L. (Ivyleaf morningglory), Amaranthus hybridus L. (smooth pigweed), and Eleusine indica L. (goosegrass). Crop injury and weed control evaluations were recorded on a 0-100% scale with 0 representing no injury and/or no control and 100 representing plant death. After crop removal, two types of tillage were performed to examine wheat injury effects due to tillage. One subplot was moldboard plowed and disked while the other subplot was disked. Following tillage operations, winter wheat (Triticum aestivum) was planted on October 30,1999 at a rate of 134.68 kg pr/ha. Visual wheat chlorosis evaluations of each subplot were recorded and based on a scale of 0-100%. Stand counts were taken in the subplots to examine stand loss due to treatment. Wheat aboveground biomass was harvested from each subplot to evaluate the relationship between wheat growth and herbicide rate. Sulfentrazone alone provided >66% control of Eleusine indica, >96% control of Ipomoea hederacea, and >88% of Amaranthus hybridus at all evaluation dates. When combined with 0.584 L pr/ha clomazone, sulfentrazone provided >82% control of all weed species 58 DAT. Sulfentrazone combined with > 1.17 L pr/ha clomazone provided > 86% Eleusine indica control, >60% Ipomoea hederacea control, and >84% Amaranthus hybridus control. Sulfentrazone combined with 1.12 kg pr/ha napropamide provided >71% control for all weed species at all evaluation dates. However, sulfentrazone plus 2.24 kg pr/ha napropamide provided only >55% control of species at all evaluation dates. Wheat chlorosis was affected by increased rates of clomazone combined with sulfentrazone at both 25 and 41 DAP (days after planting). Fresh weight also exhibited a trend of decreased mass as clomazone application rate increased. Addition of >1.75 L pr/ha clomazone decreased stand count at both evaluation dates, as compared to the sulfentrazone treatment. There were no differences in stand count between napropamide rates in either stand count evaluation. Wheat chlorosis 25 and 41 DAP was greater in plots that were not moldboard plowed. Areas moldboard plowed and disked exhibited less chlorosis, but tillage had no significant effect on wheat biomass or stand count.
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Books on the topic "Agronomy and Crop Sciences"

1

Advances in agronomy. San Diego, CA: Academic Press, 2011.

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Sparks, Donald L. Advances in agronomy. London: Academic Press, 2009.

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Sparks, Donald L. Advances in agronomy. Amsterdam: Academic Press, 2011.

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Yayock, J. Y. Crop science and production in warm climates. London: Macmillan, 1988.

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Conference on Tailoring Genes for Crop Improvement (1986 University of California, Davis). Tailoring genes for crop improvement: An agricultural perspective. New York: Plenum Press, 1987.

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Francisco Javier Alonso de la Paz. La huerta: Guía completa de hortalizas y verduras. Madrid: Agata, 1997.

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Davies, Frederick Stanley. Citrus. Wallingford, Oxon, UK: CAB International, 1994.

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Ginseng dreams: The secret world of America's most valuable plant. Lexington: University Press of Kentucky, 2006.

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Maxwell, Jason E. Soybeans: Cultivation, uses and nutrition. Hauppauge, N.Y: Nova Science Publishers, 2011.

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Brush, Stephen B. Farmers' bounty: Locating crop diversity in the contemporary world. New Haven: Yale University Press, 2004.

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Book chapters on the topic "Agronomy and Crop Sciences"

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Edminster, T. W. "Legislation: Does It Control Crop and Soil Science Research?" In Agronomy in Today's Society, 37–43. Madison, WI, USA: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/asaspecpub33.c5.

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Lal, Rattan. "Agronomic Interactions with CO2 Sequestration." In Crop Science, 425–31. New York, NY: Springer New York, 2019. http://dx.doi.org/10.1007/978-1-4939-8621-7_104.

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Bauer, Philip J. "Crop Growing Practices." In Agronomy Monographs, 419–38. Madison, WI, USA: American Society of Agronomy, Inc., Crop Science Society of America, Inc., and Soil Science Society of America, Inc., 2015. http://dx.doi.org/10.2134/agronmonogr57.2013.0029.

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Waddle, B. A. "Crop Growing Practices." In Agronomy Monographs, 233–63. Madison, WI, USA: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2016. http://dx.doi.org/10.2134/agronmonogr24.c8.

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Entz, M. H., and J. R. Thiessen Martens. "Organic Crop-Livestock Systems." In Agronomy Monographs, 69–84. Madison, WI, USA: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr54.c4.

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Rendig, V. V. "Sulfur and Crop Quality." In Agronomy Monographs, 635–52. Madison, WI, USA: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr27.c24.

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Ritchie, J. T., and D. S. Nesmith. "Temperature and Crop Development." In Agronomy Monographs, 5–29. Madison, WI, USA: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr31.c2.

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Bernstein, Leon. "Crop Growth and Salinity." In Agronomy Monographs, 39–54. Madison, WI, USA: American Society of Agronomy, 2016. http://dx.doi.org/10.2134/agronmonogr17.c3.

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Forsberg, Robert A., and Dale L. Reeves. "Agronomy of oats." In The Oat Crop, 223–51. Dordrecht: Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0015-1_8.

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Tucker, Billy. "Management of the Wheat Crop." In Agronomy Monographs, 323–24. Madison, WI, USA: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America, 2015. http://dx.doi.org/10.2134/agronmonogr13.2ed.c14.

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Conference papers on the topic "Agronomy and Crop Sciences"

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"Agronomy Based Crop Production System." In 2015 ASABE International Meeting. American Society of Agricultural and Biological Engineers, 2015. http://dx.doi.org/10.13031/aim.20152181293.

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Hazmi, Muhammad, Habib Waliyuddin, and Hudaini Hasbi. "Ciherang Rice Agronomy Performance on the Balance of Nitrogen Intake from Azolla Compost and Urea." In 1st Borobudur International Symposium on Humanities, Economics and Social Sciences (BIS-HESS 2019). Paris, France: Atlantis Press, 2020. http://dx.doi.org/10.2991/assehr.k.200529.081.

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Bounnady, Khampheth, Poutthasone Sibounnavong, Khampasith Chanthavong, and Savath Saypadith. "Smart Crop Cultivation Monitoring System by Using IoT." In 2019 5th International conference on Engineering, Applied Sciences and Technology (ICEAST). IEEE, 2019. http://dx.doi.org/10.1109/iceast.2019.8802584.

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Hepting, Daryl H., Timothy Maciag, and Harvey Hill. "Web-Based Support of Crop Selection for Climate Adaptation." In 2012 45th Hawaii International Conference on System Sciences (HICSS). IEEE, 2012. http://dx.doi.org/10.1109/hicss.2012.640.

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Long, Qiubo. "Estimation of Crop Evapotranspiration in North of Shanxi Province." In 2nd International Conference on Civil, Materials and Environmental Sciences. Paris, France: Atlantis Press, 2015. http://dx.doi.org/10.2991/cmes-15.2015.41.

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"Organic Margosa: A Natural Green Input for Increasing Crop Productivity." In International Conference on Agricultural, Ecological and Medical Sciences. International Institute of Chemical, Biological & Environmental Engineering, 2015. http://dx.doi.org/10.15242/iicbe.c0215156.

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"Monitoring of Groundwater Chemical Composition in Areas of Crop Production." In 5th International Conference on Biological, Chemical and Environmental Sciences. International Institute of Chemical, Biological & Environmental Engineering, 2016. http://dx.doi.org/10.15242/iicbe.c0316028.

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Tabaku, Baftjar, and Maaruf Ali. "Wireless Technology for Autonomous Albanian Farming and Crop Monitoring." In 2020 International Conference on Computing, Networking, Telecommunications & Engineering Sciences Applications (CoNTESA). IEEE, 2020. http://dx.doi.org/10.1109/contesa50436.2020.9302860.

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Filiapuspa, M. H., S. F. Sari, and S. Mardiyati. "Applying Black Scholes method for crop insurance pricing." In PROCEEDINGS OF THE 4TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES (ISCPMS2018). AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5132469.

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Nur, T. A. S., S. F. Sari, and S. Mardiyati. "Crop insurance premium based on proportional hazard transform." In PROCEEDINGS OF THE 4TH INTERNATIONAL SYMPOSIUM ON CURRENT PROGRESS IN MATHEMATICS AND SCIENCES (ISCPMS2018). AIP Publishing, 2019. http://dx.doi.org/10.1063/1.5132470.

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