Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 78 for “"corn production"”.
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Energetics of low-input corn production
… costs associated with nitrogen-fixing legume production and use. The energetics of com silage and com grain production under standard and alternative practices are examined. Economic analyses of crop production practices are used to aid the selection of recommended alternative practices. In …
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Optimizing nutrient availability for high-yield corn production
… different fertilizer technologies available to corn producers can effectively be integrated in management decisions to optimize nutrient availability in their high-yielding corn production systems. Chapter 1 focuses on phosphorus (P) management and how it can be managed to optimize plant use of …
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Fertilizer 15N uptake efficiency in Midwestern corn production
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms
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Wheel traffic effects on soil compaction and corn production
Made available in DSpace on 2011-05-07T12:11:24Z (GMT). No. of bitstreams: 2 license.txt: 4922 bytes, checksum: 910b249b4beec47e7ab768910c8f966f (MD5) 9503287.pdf: 5364289 bytes, checksum: 6fd086fbe255ffc346e01c7dc87dfb7e (MD5) Previous issue date: 1994
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Tillage practices for corn production : a resesarch proposal for Venezuela
Thesis (M.S.)--Michigan State University. Dept. of Agricultural Engineering, 1971
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Nitrogen and phosphorus fertilization for efficient corn production in Virginia
Traditional com fertilization methods of broadcasting N fertilizer, and applying P fertilizer to soils testing high to very high in plant-available P, can be inefficent. Experiments were conducted at several locations in Virginia to evaluate if band applications of N fertilizer are more efficient …
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Fate and Utilization of Fertilizer in Inbred and Hybrid Corn Production
… crop rotation on uptake of fertilizer N in seed corn production, corn inbred lines were grown in corn-corn and corn-soybean (Glycine max L. Merr.) rotations using N application rates of 0 to 144 lb acre$\sp{-1}$. When corn was the previous crop, seed yield of all increased with increasing N rate …
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Analysis of management factor contributions to high-yielding corn production systems
… and cumulative contribution to a high-yield corn production system. The five management factors (non-nitrogen (N) fertility, N fertility, hybrid trait, plant population, and fungicide application) were evaluated by establishing 2 levels (traditional and advanced) of each factor. Twelve total …
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Balancing water quality, nitrogen management, and corn production goals in Illinois
… (N) fertilizer inputs are required to maintain corn production in high-yielding cropping systems across much of the U.S. Midwest. However, applied N can also increase N losses through nitrate-nitrogen (NO3-N) leaching and nitrous oxide (N2O) emissions, negatively impacting water and air quality, …
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Evaluation of Nitrogen Sources, Starter Fertilizers, and Amendments for No-Till Corn Production
No-till agricultural production creates a decidedly different soil environment than a conventional system that receives annual tillage, which presents challenges to the management of nitrogen (N) fertility. Two on-farm studies were conducted to evaluate N fertilizer sources, starter fertilizers, …
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Swine waste lagoon effluent: its nutrient supplying potential and efficiency in corn production
… effluent on yield and nutrient concentrations of corn, and to study the downward movement of elements in surface applied effluent. Chemical analyses showed that elemental concentrations in effluent from the four lagoons varied. The lagoon that received the heaviest loading contained the highest …
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Long-term effects of copper rich swine manure application on continuous corn production
… of 1978 and continued through 1988 to evaluate corn (Zea <i>mays</i> L.) response to high Cu levels from Cu rich swine manure and CuS0₄ applications. The field research was conducted on soils with diverse properties, i.e., on a Bertie fine sandy loam (Aquic Hapludults), a Guernsey silt loam …
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Interactive Effects of Cover Crops, Invertebrate Communities and Soil Health in Corn Production Systems
… of a farm. I examined the management of corn (<em>Zea mays</em>) fields across four states in the Upper Midwest region of the United States. Regenerative systems in this study used practices such as using cover crops, not tilling, and abandoning the use of insecticide. The comparative …
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Dynamic Programming Model of the Corn Production Decision Process With Stochastic Climate Forecasts (Information, Illinois)
… Economics literature: (1) the need to model crop production in a dynamic framework, and (2) the need for a better understanding of the economics of information. To address these issues a stochastic dynamic programming model of a single year's corn production process in east-central Illinois is …
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Impacts and correction of potassium deficiency in no-till and strip-till soybean and corn production
… max (L.) Merr.) under no-till and strip-till production systems are impacting soybean yields, and if so, what fertilizer application practices including: rate of K application; broadcast or deep band methods of application; and the use of starter fertilizer at planting; could be used to …
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Farm management implications of uncertainty in the number of days suitable for fieldwork in corn production
… to conduct fieldwork. This research analyzed corn planting and harvest progress, as well as the number of days suitable for fieldwork in Iowa, Kansas, and Missouri. Variability of days suitable for fieldwork across crop reporting districts within each state was reported. The total number of …
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Corn Production, Inorganic Nitrogen Distribution, and Soil Chemical Transformations Associated With Liquid Beef Manure Application Methods
… method, many producers reported crop growth and production problems when liquid manure was knife injected into soil. Field and laboratory studies were conducted to determine the effects of liquid beef manure application methods and nitrification inhibitors on corn (Zea mays L.) yield, plant N …
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Use of 15N-labeled anhydrous NH3 to determine the efficiency of fall N fertilization for corn production
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2021-05-01
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The diffusion of no-till corn information and adoption in selected counties in Virginia
… sources used prior to the adoption of no-till corn production, the time pattern of the adoption, and the changes caused by the adoption of the no-till corn method were investigated. A mail questionnaire was utilized for data collection. Farm journals were found to be the major source of initial …
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