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Dissertations / Theses on the topic 'Corn and soybean'

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Published: 4 June 2021
Last updated: 1 February 2022

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1

Galiano, Norma Graciela. "Soil nitrate and ammonia levels as affected by no-till and conventional tillage, monoculture corn and soybean, corn-soybean and corn- soybean-alfalfa rotations, and added N." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=27319.

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Corn (Zea mays L.) production under monoculture and conventional tillage systems may land to soil degradation and nitrate (NO$ sb3 sp-$) pollution of surface and groundwater. This study evaluated the impact of no-till and conventional tillage, monoculture corn and soybean, corn-soybean rotations and corn-soybean-alfalfa rotations, and three fertilizer N rates applied to monoculture corn or soybean, and corn in rotation, on soil NO$ sb3$-N and NH$ sb4$-N levels. Experimental sites were a Ste-Rosalie clay (Humic Gleysol) and an Ormstown silty clay loam (Humic Gleysol). Results obtained from fall
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2

Galiano, Norma Graciela. "Soil nitrate and ammonia levels as affected by no-till and conventional tillage, monoculture corn and soybean, corn-soybean and corn-soybean-alfalfa rotations, and added N." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0004/MQ29694.pdf.

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3

Wolfe, Alice Marie. "Effects of Corn-Soybean Rotations on No-Till Corn Productivity." The Ohio State University, 1993. http://rave.ohiolink.edu/etdc/view?acc_num=osu1409151118.

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4

Mobarok, Mohammad Hasan. "A Study of North Dakota Crop Basis Volatility: A Mixed Model Approach to Temporally and Spatially Analyze Unobserved Basis Determinants." Thesis, North Dakota State University, 2017. https://hdl.handle.net/10365/28549.

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A model of local elevator basis levels was developed to quantify the response of corn, soybean and hard red spring wheat basis to a set of predefined predictors. Basis data from 2013 ? 2016 for 12 grain elevators in Eastern North Dakota were collected. A maximum likelihood mixed effect model was used to test the significance of alternative predictor variables and further divided the residuals into temporal and spatial components. The results indicate that the base model was able to explain 57 to 87 percent of the local basis variability for the selected crops at the individual elevators. In
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5

Thenkabail, Prasad Srinavasa. "Capabilities of LANDSAT-5 Thematic Mapper (TM) data in studying soybean and corn crop variables." The Ohio State University, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=osu1129300399.

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6

Güeli, Romina. "Weed management with fall applied herbicides in no-tillage corn and soybean /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p1421139.

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7

Sey, Benjamin Kweku. "Carbon dioxide and nitrous oxide production from corn and soybean agroecosystems." Thesis, McGill University, 2006. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=102726.

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Globally, an estimated 25% of the CO2 and 90% of the N2O is believed to come from agroecosystems. The objective of this study was to investigate the dynamics of the below-ground CO 2 and N2O concentrations and efflux in corn and soybean systems. In our field study, changes in the below-ground concentrations of CO 2 and N2O were closely related to seasonal changes in soil moisture, with the first two months of the growing season being particularly critical to the production of these gases. Tillage significantly increased CO2 content in the soil profile, however, this effect was greater in the s
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8

Eichele, Jaclyn Lee. "The Effects of Salinity on Herbivorous Pests of Corn and Soybean." Thesis, North Dakota State University, 2016. https://hdl.handle.net/10365/28233.

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Many environmental factors, including soil characteristics, are critically important for plants, herbivorous arthropods, and their interactions. Despite increasing evidence that soil salinity can drastically impact plants, little is known about how salinity affects the herbivorous arthropod pests feeding on those plants we investigated how soil salinity affects two major crop pests: the two spotted spider mite (Tetranychus urticae) feeding on corn and soybean and the soybean aphid (Aphis glycines) on soybean. We quantified the impact of salinity by measuring demographic characteristics and beh
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9

Mueller, Nathan D. "Improving corn and soybean yield through fertility and weed management practices." Diss., Kansas State University, 2012. http://hdl.handle.net/2097/14844.

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Doctor of Philosophy<br>Department of Agronomy<br>Dorivar Ruiz Diaz<br>Winter annual weeds (WAW) could affect nitrogen supply for corn production. The objectives of first study were to determine the diversity and abundance of WAW and to evaluate the effect of delaying herbicide applications on nitrogen supply and no-till corn response. Research was conducted in 2010 and 2011 at 14 sites in eastern Kansas. A factorial arrangement of three herbicide application dates (Nov.-Mar., April, and May) and five N rates were used. The three most abundant WAW across sites were henbit, purslane speedwell,
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10

Arns, Ingrid. "Evaluation of corn and soybean response to phosphorus and potassium fertilization." Thesis, Kansas State University, 2013. http://hdl.handle.net/2097/15458.

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Master of Science<br>Department of Agronomy<br>Dorivar Ruiz Diaz<br>Corn (Zea mays) response to fertilization and placement methods has been studied extensively; however studies on soybean [Glycine max (L.) Merr.] response to placement have been limited. Three studies were completed to evaluate different aspects of crop response. The objective of the first study was to evaluate the effect of starter and broadcast fertilizer application on corn and soybean, in a typical corn-soybean rotation in Kansas. Treatments were unfertilized control, starter (N, P and K), broadcast P and K using mono ammo
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11

Te, Slaa Chad. "Performance of the Producer Accumulator in Corn and Soybean Commodity Markets." Thesis, South Dakota State University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10620800.

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<p> This research quantifies risk reduction and performance of the producer accumulator contract in corn and soybean markets. To quantify performance, we use three alternative theoretical pricing models to estimate historical producer accumulator contract specifications in corn and soybean markets. We then compare the performance of the producer accumulator to eight alternative agricultural marketing strategy portfolios that are also used in new generation grain contracts.</p><p> The performance measures we compare are: average bushel price that would be received by the producer, daily portf
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12

Martin, Lucanus Earl. "Satellite Production Forecasts: Valued with Simulated Futures and Options Trading." Thesis, Montana State University, 2005. http://etd.lib.montana.edu/etd/2005/martin/MartinL1205.pdf.

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Both the USDA and private firms are allocating substantial capital towards providing accurate and timely crop production forecasts. Production forecasts based on satellite imagery have been suggested as a means of making forecasts earlier, more frequent, and cheaper. This thesis attempts to determine if satellite data increases information with respect to crop condition and final production. If so, does the additional information have value and can it be used to make profitable trades in the futures market? These questions are answered using NDVI data for Iowa and Illinois. Jackknifed out-of-s
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13

Monnig, Nicholas. "Agronomic and pest interactions in no-till corn and soybean wih fall versus spring herbicide applications." Diss., Columbia, Mo. : University of Missouri-Columbia, 2006. http://hdl.handle.net/10355/4501.

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Thesis (M.S.) University of Missouri-Columbia, 2006.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on August 27, 2007) Includes bibliographical references.
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14

Choi, Suk-won. "The potential and cost of carbon sequestration in agricultural soil empirical study of dynamic model in the midwestern U.S /." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1095676113.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xiii, 133 p.; also includes graphics (some col.). Includes bibliographical references (p. 125-133).
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15

Martin, Ralph C. "Intercropping corn and soybean for high-protein silage in a cool temperate region." Thesis, McGill University, 1990. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=74337.

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The overall hypothesis of this research was that silage biomass and protein yields would be higher in corn-soybean intercrops than in monocrops on the same land area. Yields, European corn borer infestation and N transfer were tested over tall and dwarf corn hybrids, nodulating and nonnodulating soybean genotypes and at 0, 60 and 120 kg N ha$ sp{-1}$. Land Equivalent Ratios ranged from 0.97 to 1.23, but most were higher than 1.10. Protein concentrations of corn-soybean silage, up to 10.76%, were on average 9.24% vs. 7.41% in corn silage. A general trend of higher protein yield ha$ sp{-1}$ in i
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16

Schmitt, Mattie Bree. "Factors Affecting Establishment and Growth of Cover Crops in a Corn-Soybean Rotation." Thesis, North Dakota State University, 2020. https://hdl.handle.net/10365/31758.

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In the Midwest, it can be beneficial to interseed cover crops into corn (Zea mays L.) since there is a limited time for them to establish and grow after corn harvest. Research conducted in four environments in North Dakota quantified the impacts of planting method and time of planting when grown with or without corn competition on the establishment, and development of three cover crop species. Limited light intensity (less than 20%) under the corn canopy drastically reduced cover crop development. Soil water can also constrain cover crop establishment. Model simulations suggest soil water is m
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17

Dunaway, Chad W. "IN VITRO DIGESTIBILITY OF RYEGRASS SUPPLEMENTED WITH HAY, CORN, OR SOYBEAN HULLS." MSSTATE, 2009. http://sun.library.msstate.edu/ETD-db/theses/available/etd-10292009-093405/.

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An <i>in vitro</i> continuous culture rumen fermentation experiment was conducted to evaluate digestibility of annual ryegrass either fed alone or annual ryegrass supplemented with hay, corn, or soybean hulls. Nutrient disappearance of feedstuffs offered were not different (P > 0.05) as a percentage of the diet however there were differences (P < 0.05) in amounts of individual nutrients digested for each treatment. Ammonia-N concentrations of culture samples were less (P < 0.05) for vessels fed corn as a supplement however there was no difference (P > 0.05) among vessels fed either ryegrass al
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18

Stanton, Victoria Leigh. "INTERSEEDING COVER CROPS TO SUPPRESS WEEDS IN CORN- SOYBEAN ROTATIONS IN KENTUCKY." UKnowledge, 2018. https://uknowledge.uky.edu/pss_etds/106.

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Cover crops are typically sown between cash crops and can suppress weed emergence and growth. If cover crops are sown after cash crop harvest the system is left susceptible to weed emergence while they establish. Interseeding cover crops into a standing cash crop may limit this bare period by allowing cover crops to become established, go into dormancy, and then revive around cash crop senescence. Studies were conducted in Princeton and Lexington, KY, to determine (i) which corn pre-emergent herbicides and mixtures of herbicide active ingredients commonly used by Kentucky growers would impact
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19

Tonhasca, Athayde. "Effects of no-tillage and strip-intercropping on corn and soybean fauna /." The Ohio State University, 1991. http://rave.ohiolink.edu/etdc/view?acc_num=osu148768795996457.

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20

Han, James Chengchou. "Development of CornSoyWater, a web-based irrigation app for corn and soybean." Thesis, The University of Nebraska - Lincoln, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10247096.

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<p> Irrigation decision making is critical for crop producers in the Midwestern United States because of the high demand for water during the peak of growing season of corn and soybean fields. Agronomists try to use agricultural-related data to optimize irrigation decision making. The biggest obstacle is the gap of transforming data to usable information which producers can access and take corresponding actions regarding when to irrigate their fields.</p><p> We developed CornSoyWater (http://cornsoywater.unl.edu), a web-based app that can be used in a web browser of any desktop computers or
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21

Matz, Jason D. "Correction of potassium deficiency in soybean and corn production in southeast Kansas." Thesis, Kansas State University, 2012. http://hdl.handle.net/2097/13415.

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Master of Science<br>Department of Agronomy<br>David B. Mengel<br>Over the last decade low (< 130 mg kg -1) soil test potassium (K) levels and increased crop K deficiency have become a major concern in the clay-pan soils of southeast Kansas. The use of more intense crop rotations and the increased production of high K extracting crops (e.g. soybeans (Glycine max L.)) has significantly increased K removal from these soils. In addition, the traditional use of the nutrient sufficiency-based fertilizer recommendations has resulted in K application rates being substantially lower than removal r
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22

Liu, Jiazhong. "Phytate phosphorus hydrolysis by microbial phytase in corn-soybean mean diets for pigs /." free to MU campus, to others for purchase, 1996. http://wwwlib.umi.com/cr/mo/fullcit?p9821350.

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23

Nyotu, Herman G. (Herman Gitau). "Effect of soybean supplementation on the nutritive value of a maize-based Kenyan food." Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=65340.

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24

Huo, Daowen. "Three-year soybean-wheat-corn rotation benefits on soybean production, soil healthand soil bacterial community are site and year dependent." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1587568388786267.

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25

Tonon, Rosa Alexandre. "Corn and soybean genotypes with contrasting root system: response to fertilizer placement and tillage." Thesis, Kansas State University, 2016. http://hdl.handle.net/2097/32714.

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Master of Science<br>Agronomy<br>Dorivar A. Ruiz Diaz Suarez<br>The effect of tillage on crop yield, early growth, and soil nutrient stratification can be influenced by fertilizer placement. In addition, deeper root systems can enhance the crop ability to uptake water and nutrients. A thorough understanding of how these factors interact can result in increased grain yields and profitability for the producer. Three studies were completed to describe and evaluate different aspects of crop root system and response to fertilizer placement and tillage. The objective of the first study was to charac
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26

Eidson, Christopher D. "Soil quality and corn-soybean yields as affected by winter rye at three sites in the U.S. Corn Belt." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1431010393.

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27

McDonald, Paul Bryant. "Management of self-seeding winter cereal cover crops in a soybean-corn rotation." [Ames, Iowa : Iowa State University], 2007.

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28

Foroutan-pour, Kayhan. "Fractal geometry concepts applied to the morphology of crop plants." Thesis, McGill University, 1998. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=35702.

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The above-ground part of a plant has an important contribution to plant development and yield production. Physiological activities of a plant canopy highly correlate to morphology of plant vegetation. Obviously, leaf area index is a good indicator for leaf area, but does not provide any information about the spatial architecture of plant canopy. With the development of fractal theory, a quantitative toot is now available for the investigation of complex objects and shapes such as plant structure. Vegetation structure of corn ( Zea mays L.) and soybean (Glycine max. (L.) Merr.] plants might be
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29

Mejía, Manuel. "Effects of water table management on water quality and strip cropped corn-soybean yields." Thesis, McGill University, 1997. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=27378.

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A two-year field study was carried out in eastern Ontario to investigate the effects of water table management (WTM) on water quality and crop yields. Corn (Zea mays L.) and soybean (Glycine max Merr.) were planted in alternate strips across the three treatments of 50 cm controlled water table (CWT), 75 cm CWT and free drainage (FD). Drainflow volume and nitrate-N concentration of the drainage water were measured. Soil samples were collected and analysed for total N, P, K, available N, soil moisture and organic matter levels. Chlorophyll-meter readings and plant harvest parameters were also me
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30

Mejia, Manuel Armando. "Effects of water table management on water quality and strip-cropped corn-soybean yields." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ29753.pdf.

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31

Perron, France. "Weed response to weed control, tillage and nutrient source in a corn-soybean rotation." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0025/MQ50854.pdf.

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32

Jacobs, Addison Denae. "Influence of Cover Crop Species on Soil Physical Properties in a Corn-soybean Rotation." Thesis, Arkansas State University, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10831039.

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<p> As crop land decreases and population increases, soil quality is becoming a concern. Utilizing cover crops in cropping systems could improve soil quality. This study examined 16 treatments of single-species cover crops, cover crop mixes, and two control treatments on a silt-loam soil, in a corn (<i> Zea mays</i> L.) - soybean (<i>Glycine max</i> L. <i> Merr</i>.) crop rotation under no-tillage, to determine their effect on soil physical properties. Cover crop biomass differed (p&lt;0.10) among treatments and produced a maximum of 15.6 Mg ha<sup>-1</sup> of biomass in the crimson clover tre
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33

Rembon, Fransiscus Suramas. "Impact of no-tillage versus conventional tillage, soybean-corn rotations, and fertilizer N rates on soil N levels and grain yields in two Eastern Canadian soils." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=22794.

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Corn (Zea mays L.) production under monoculture and conventional-tillage management may cause soil degradation and nitrate (NO$ sb3 sp-)$ pollution. This study was conducted from 1991 to 1993 to evaluate the impact of conventional-tillage (CT) and no-tillage (NT) practices under corn-soybean (Glycine max L. Merill) rotations (C-S-C and S-C-S), continuous corn (C-C-C) and continuous soybean (S-S-S) systems on optimum N fertilization rates, yield and soil residual N levels. Field experiments were carried out on a Ste. Rosalie clay (Humic Gleysol) and an Ormstown silty clay loam (Humic Gleysol).
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34

Jenkins, Brian T. "Tools and Techniques for Managing Risk for Virginia Grain and Oilseed Producers." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/33749.

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Two very important benchmarks in the development of a marketing strategy are the variable and fixed costs of production. Every farmer has costs of production that are unique to their particular farm. Accurately identifying the costs of production or break even costs for the various crop enterprises is important. Also important is the analysis of revenues and costs across the spectrum of various acreage allocations, yields, and market prices. A computer program in an EXCEL spreadsheet format has been developed to facilitate the identification of the costs of production and the financial impact
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35

Thenkabail, Prasad Srinivasa. "Capabilities of LANDSAT-5 Thematic Mapper (TM) data in studying soybean and corn crop variables /." Connect to resource, 1992. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1129300399.

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Thesis (Ph. D.)--Ohio State University, 1992.<br>Advisors: A.D. Ward and John G. Lyon, Dept. of Agricultural Engineering. Includes bibliographical references. Available online via OhioLINK's ETD Center
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Peng, Wei. "Improving Nitrogen Management in Corn- Wheat-Soybean Rotations Using Site Specific Management in Eastern Virginia." Diss., Virginia Tech, 2001. http://hdl.handle.net/10919/29485.

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Nitrogen (N) is a key nutrient input to crops and one of the major pollutants to the environment from agriculture in the United States. Recent developments in site-specific management (SSM) technology have the potential to reduce both N overapplication and underapplication and increase farmers' net returns. In Virginia, due to the high variability of within-field yield-limiting factors such as soil physical properties and fertility, the adoption of SSM is hindered by high grid&#64979;sampling cost. Many Virginia corn-wheat-soybean farms have practiced generating yield maps using yield monitors
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Hustedde, Nicholas Victor. "Optimum® GAT® Concepts: Herbicide Combinations for Foliar and Residual Weed Control in Soybean and Corn." OpenSIUC, 2011. https://opensiuc.lib.siu.edu/theses/604.

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Field and greenhouse research was conducted in 2009 and 2010 on herbicide applications enabled by the integration of Optimum GAT crop traits providing for resistance to glyphosate and certain ALS-inhibiting herbicides. The herbicide concepts were evaluated for control of several winter and summer annual weed species, as well as the effect of the resulting weed control on grain yield of Optimum GAT soybean. The combination of chlorimuron + rimsulfuron did not provide sufficient efficacy on the winter annual grass species little barley and annual bluegrass. Factors contributing the sub-lethal ac
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Carruthers, Kerry. "Intercropping of corn with soybean, lupin and forages for weed control and improved silage yield and quality in eastern Canada." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=27294.

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The intercropping of corn with legumes is an alternative cropping strategy to corn monocropping which may help reduce inputs into the production of silage for livestock feed. The reduction of inputs will decrease costs to producers and potential damage to the environment. Two experiments were carried out at each of two sites in 1993 and 1994. The first experiment investigated the effects on silage yield and weed control of seeding soybean or lupin alone or in combination with one of three forages (annual ryegrass, Lolium multiflorum Lam.; perennial ryegrass, Lolium perenne L.; and red clover,
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Savernini, Maira Q. M. "An Econometric Analysis of the Relationship among the U.S. Ethanol, Corn and Soybean Sectors, and World Oil Prices." Ohio University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1236980228.

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Barcos, Sebastián Raúl. "Efficiency of fall and spring broadcast fertilizer phosphorus application for corn and soybean in no-till." [Ames, Iowa : Iowa State University], 2007.

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41

Blocker, Shannon M. "Impacts and correction of potassium deficiency in no-till and strip-till soybean and corn production." Thesis, Manhattan, Kan. : Kansas State University, 2009. http://hdl.handle.net/2097/2346.

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42

Vinje, Daniel Martin 1959. "The Effects of Deregulation on Rail Rates: A Study on Wheat, Barley, Corn, Oat, and Soybean." Thesis, North Dakota State University, 2006. https://hdl.handle.net/10365/29868.

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Although the original intent of this study was to do a pre-and post-deregulation assessment of rail rates per ton-mile, the results using post-deregulation data show a significant decrease in rail rates between 1981 and 2000. While accounting for changes in shipment characteristics, savings for wheat, barley, com, oat, and soybean shippers were 63.80%, 69.17%, 49.07%, 67.97%, and 59.36%, respectively. Rate savings over time for an average 1981 shipment were 45%, 55%, 38%, 45%, and 36% for wheat, barley, com, oat, and soybean shippers, respectively. Analysis regarding the effects of deregulatio
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43

Hulse, Brandon Michael. "Kochia control with preemergence herbicides in soybeans, dose response of three Kochia populations to glyphosate, and response of corn, soybean, and grain sorghum to saflufenacil." Thesis, Kansas State University, 2012. http://hdl.handle.net/2097/13721.

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Master of Science<br>Department of Agronomy<br>Dallas Peterson<br>Kochia (Kochia scoparia (L.) Schrad) is a troublesome and highly competitive weed in many cropping systems in the Great Plains region. It has traditionally been controlled using postemergence (POST) applications of glyphosate, however control is becoming inconsistent. Use of preemergence (PRE) herbicides may help to control kochia. Objectives of this research were to (1) Evaluate the efficacy of selected PRE herbicides in combination with POST applied glyphosate for controlling kochia in soybeans, (2) evaluate a kochia popu
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Singh, Gurbir. "EFFECT OF COVER CROPS ON NUTRIENT DYNAMICS AND SOIL PROPERTIES IN CORN-SOYBEAN ROTATION IN SOUTHERN ILLINOIS." OpenSIUC, 2018. https://opensiuc.lib.siu.edu/dissertations/1498.

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Corn (Zea mays L.) and soybean (Glycine max L.) production in the Midwest US can result in significant nutrient leaching to groundwater and surface waters, which contributes to eutrophication and hypoxia in the Gulf of Mexico. A promising strategy to control nutrient leaching and sediment runoff loss during winter fallow period is the use of cover crops (CCs). In southern Illinois, CCs are not widely adopted by farmers due to economic constraints and the lack of scientific data that supports benefits of incorporating CCs into the corn-soybean rotation. Therefore, this doctoral dissertation add
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Zone, Phoo Pye. "Effect of Soil Test Values and Fertilization on Corn, Soybean and Wheat Tissue Phosphorus and Potassium Concentrations." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1546448067902974.

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46

Khan, Wajahatullah. "Signal compounds involved with plant perception and response to microbes alter plant physiological activities and growth of crop plants." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=82900.

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Recent preliminary data have suggested that microbe-to-plant signals, and plant internal signals elicited by microbial signals, affect aspects of plant physiology, development and growth. The reported research investigated the responses of plants to signal compounds of microbial and plant origin, such as lipo-chitooligosaccharides (LCOs - signal molecules in rhizobia-legume associations), chitin and chitosan (present in fungal cell walls), and phenolic compounds (salicylic acid, acetylsalicylic acid and gentisic acid - internal signals in plants, often affected by signals from microbes)
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47

Araújo, Ana Leticia de. "Efeitos da radiação gama do Cobalto-60 em sementes de algodão, milho e soja para estimular a germinação." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/64/64134/tde-26012016-153525/.

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Esse trabalho teve como objetivo avaliar por quanto tempo as sementes das três grandes culturas (algodão, milho e soja) mantém os efeitos radiohorméticos induzidos pela radiação gama do Cobalto-60, avaliando-se o poder germinativo das sementes em cada tratamento de acordo com o decorrer do tempo de armazenamento até o plantio. Para determinar se os efeitos benéficos da radiação gama se mantêm até quanto tempo nas sementes irradiadas das três culturas estudadas. As sementes foram irradiadas no Centro de Energia Nuclear na Agricultura (CENA-USP) num irradiador de Cobalto-60, tipo Gammacell 220.
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48

Langseth, Chandra Marie. "The Influence of Soil Salinity Gradients on Soybean [Glycine Max (L.) Merr.] and Corn (Zea Mays L.) Growth." Thesis, North Dakota State University, 2015. https://hdl.handle.net/10365/27846.

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An estimated 2.3 million hectares are salt-affected in North Dakota (Brennan and Ulmer, 2010), a number increasing due to land management, climate, and crop choice. As a result, yield reductions are noted for salt-sensitive crops such as soybean [Glycine max (L.) Merr] and corn (Zea Mays L.). The objective of this greenhouse study was to assess soybean and corn response to salinity, using sulfate based salts. Soybean leaf area, plant mass, and height decreased by 66, 59, and 47%, respectively, across a salinity gradient ranging from an EC1:1 of 0.4 to 4.1 dS m-1. Corn mass and height decreased
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49

Senay, Gabriel B. "Using High Spatial Resolution Spectral Data To Study Spatial and Temporal Variability in Corn and Soybean Management Systems /." The Ohio State University, 1996. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487935125879758.

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50

Ganesan, Yogesh Kumar. "Hydrology of/and Nitrate Transport from a Corn-Soybean Rotation with Water Table Management and Seasonal Wetland Conditions." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1524060689779001.

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