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 482 for “"Cropping"”.
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Anhydrous ammonia in vegetable cropping
Anhydrous ammonia, containing 82%N, is the highest analysis nitrogen fertiliser available for commercial use. Lyons (1966) states that it has many economic advantages in handling, transporting and application over conventional nitrogen fertilisers and that the high nitrogen content, plus the fact …
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Non-Contact Sensing for Protected Cropping
Protected cropping systems offer a controlled environment for optimized plant growth, but traditional sensing techniques for monitoring plant health and crop quality are often invasive, costly, and labor-intensive. This thesis explores innovative, non-contact sensing methodologies to address key …
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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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Intercropping dynamics in a perennial Kernza cropping system
… compromise the sustainability and resiliency of cropping systems. These issues include soil erosion, nutrient runoff, declining soil organic matter stocks, and poor water relations. Two major efforts to perennialize landscapes have been initiated: agroforestry and perennial herbaceous crop …
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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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Suitability of energy cropping on abandoned metal contaminated farmland.
… change and increases in oil prices. Energy cropping is one of many emerging technologies for producing renewable energy that is being widely researched around the world, and is in fullscale production in some countries. Abandoned contaminated land, awaiting remediation is another major …
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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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Frontiers in alley cropping: Transformative solutions for temperate agriculture
… agriculture. This dissertation explores alley cropping (AC) – an agroforestry practice integrating trees with crops – as a transformative land-use solution to mitigate climate change, restore ecosystem services, and improve agricultural profitability. Through an inventory of all field …
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Developing methods of strip cropping cucumbers with rye/vetch
… 1998 and 1999 was to develop methods for strip cropping of cucumbers with rye/vetch and black plastic mulch. Effects of planting methods, weed control measures, and cover crop management techniques on pest and beneficial insects, petiole sap nitrate-nitrogen, soil moisture, yields and economic …
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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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Seasonal variations in preferential flow under corn and soybean cropping
… of these chemicals under current agricultural cropping systems is essential in order to make the proper management decisions. At the present time, knowledge of spatial and temporal variations in preferential flow under different cropping systems and tillage practices during the growing season …
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Economic Viability of Woody Bioenergy Cropping for Surface Mine Reclamation
Planting woody biomass for energy production can be used as a mine reclamation procedure to satisfy the Surface Mining Control and Reclamation Act of 1977 (SMCRA) and provide renewable energy for the United States. This study examines the economic viability of bioenergy production on previously …
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Rotational cropping after applying experimental herbicides for weed control in soybeans
Call number: LD2668 .T4 AGRN 1988 S65
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Rotational cropping after applying experimental herbicides for weed control in soybeans
Call number: LD2668 .T4 AGRN 1988 S65
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A dual-watermarking with QR code against cropping and resizing attack
… applied to digital files to withstand against cropping and resizing attack. In this Dual-watermarking with QR code project, both visible and invisible watermark are used. The proposed technique is compared with MOHANTY and HSU & WU techniques. First, visible QR code watermark is embedded into …
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Tillage and cover cropping effects on soil properties and crop production
Cover crops (CCs) have been heralded for their potential to retain nutrients in the field and improve soil properties, but their adoption within the Midwestern Corn-Belt remains limited. We assessed the effects of integrating five sets of CCs into corn-soybean rotations under no-till and chisel …
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Adaptability of Soybeans to Late-Planted Environments (Isolines, Gxe, Double Cropping)
… of cultivars specifically adapted to double cropping has been suggested as a means to expand double-crop acreage in this area. Before initiating a separate breeding program for the development of Midwestern double-crop cultivars, information is needed concerning genotype by cropping system …
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