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 148 for “"cropping systems"”.
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Soil quality in organic cropping systems
The objective of this research was to quantify soil quality indicator levels under contrasting organic practices and to provide scientific information that can lead to development of best management practices for organic no-till and transitioning to organic production. Four studies examining crop …
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Alternative and Improved Cropping Systems for Virginia
… Growing grain sorghum in this niche in the cropping system instead could result in greater overall feed grain production. In order to assess the performance of grain sorghum as an alternative in common cropping systems, four field experiments were established at the Southern Piedmont …
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Technological Innovations for Mid-Atlantic Cropping Systems
Greater projected demand for food, fuel, and fiber will require substantial increases in global agricultural production over the next three decades. Climate change is also forecasted to make weather events more extreme and variable. Efficiency will become more important as demand for food products …
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Annual forage cropping-systems for midwestern ruminant livestock production
<p>Annual forage cropping systems are a vital aspect of livestock forage production. One area where this production system can be enhanced is the integration of novel annual forages into conventional cropping systems. Two separate projects were conducted to investigate alternative forage options in …
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Assessment of disease suppression in organic transitional cropping systems
… the effect of adding organic matter, through cropping systems (pasture, cash grain, vegetable) and direct organic amendments (cover crops only, cover crops plus manure or compost), on soil suppressiveness during the certification transition period. Disease suppression of soybean pathogens, …
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Evaluation of Soybean Genotypes in Monoculture and Multiple Cropping Systems
Restricted to the U of I community indefinitely during batch ingest of legacy ETDs
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Soil Organic Matter Dynamics in Cropping Systems of Virginia's Valley Region
Soil organic matter (SOM) is a well known indicator of soil quality due to its direct influence on soil properties such as structure, soil stability, water availability, cation exchange capacity, nutrient cycling, and pH buffering and amelioration. Study sites were selected in the Valley region of …
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Efficacy of Herbicides for weed control in Soyabean cropping systems of Zambia
A trial was conducted at two sites, Lilayi Farm using no-tillage system and Ellensdale Farm using conventional tillage. The objective was to assess the efficacy of new herbicides under Zambian conditions so as to' provide recommendations for effective herbicides. Ten treatments were used at both …
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Efficacy of Herbicides for weed control in Soyabean cropping systems of Zambia
A trial was conducted at two sites, Lilayi Farm using no-tillage system and Ellensdale Farm using conventional tillage. The objective was to assess the efficacy of new herbicides under Zambian conditions so as to' provide recommendations for effective herbicides. Ten treatments were used at both …
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On-farm nitrous oxide response to nitrogen fertilizer in corn cropping systems
Thesis (M.S.)--Michigan State University. Crop and Soil Science, 2009
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Comparing impacts of new cropping systems on biodiversity in traditional rural China
This study selected six geographically-similar villages with traditional and alternative cultivation methods (two groups of three, one traditional and two alternatives) in two counties of Henan Province, China—a representative area of the Huang-huai-hai Plain representing traditional rural China. …
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The effect of cropping systems on the pest complex in Virginia soybeans and calibration of the sweep net and ground cloth sampling methods for use in these cropping systems
… Most of these fields are planted in notillage systems. Early planted soybeans are sometimes planted with a grain drill in very narrow rows (ca. 18 cm. apart). The effect that these practices have on arthropod populations is not well understood. Also, sampling methods developed for …
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COMPARISON AND EVALUATION OF RICE (ORYZA SATIVA L.) CROPPING SYSTEMS FOR SUSTAINABLE AGRICULTURE
… design and management of food and agricultural systems (Barrios et al.,2020). Recognized as a potential practice to meet these goals under the common agricultural policy (CAP), AE is seen by scientists as a promising approach to addressing these challenges (Peeters et al., 2021). Local examples …
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FUNCTIONAL DIVERSITY OF FUNGI ASSOCIATED WITH DURUM WHEAT ROOTS IN DIFFERENT CROPPING SYSTEMS
Differences in pea (Pisum sativum L.) and chickpea (Cicer arietinum L.) microbial compatibility and/ or their associated farming practices may influence root fungi of the following crop and affect the yield. The main objective of this research was to explain the difference in durum wheat (Triticum …
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Effects of Local Plant Neighborhood on Plant Herbivory in Perennial Polyculture Cropping Systems
Perennializing grain cropping systems has been proposed as a way to mitigate the challenges facing agriculture in the future due to crop intensification. Crop intensification is characterized by utilizing more land and inputs, less crop diversity, and greater crop density. Perennial cropping …
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Effect of Cropping Systems on Production and Economic Returns of Ten Vegetable Crops
… in cost and net return between several cropping systems. Tomato (Lycopersicon esculentum Mill. cv. Jet Star), cabbage (Brassica oleracea Capitata group, L. cv. Sun-up), collards (Brassica oleracea Acephala group, L. cv. Vates), and muskmelon (Cucumis melo L. cv. Gold Star) were used with …
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N₂ fixation, plant mineral nutrition and C metabolites in cowpea/maize cropping systems
… assimilation by component species in the cropping system, and (3) to determine the effects of cropping system on C metabolites. At harvest the dry mass of both cowpea and maize were highest in sole crops. There was a significant difference in % nitrogen of maize and cowpea plants from the …
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Productivity, Carbon Sequestration, Nutrient Accumulation, And Species Interactions In Perennial Biomass Alley Cropping Systems
Perennial biomass production in agroforestry systems has been promoted as a strategy to increase productivity and ecosystem services from marginal agricultural lands. However, little is known about appropriate species combinations and production potential for biomass crops in agroforestry systems. …
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