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 10 of 10 for “"Perennial Cropping"”.
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Soil-atmosphere fluxes of CO2 and CH4 in annual and perennial cropping systems in southern Sweden
Annual cropping systems dominate agricultural grain production, but have been linked to several key environmental issues, such as loss of biodiversity and pollution of groundwater. Newly developed perennial grains may offer solutions to some of those problems. Their longer roots and growing seasons …
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Potential enzyme activities in soils as affected by perennial cropping and nitrogen rates in central Iowa
… on nitrogen (N) fertilizers. In contrast, perennial biomass crops are gaining attention for their notable environmental benefits, such as efficient nutrient cycling, enhanced water quality, reduced soil erosion, increased soil organic carbon (C), and overall soil health improvement. …
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Identifying targets for multifunctional perennial cropping systems implementation through a landowner adoption preferences survey and a spatial suitability analysis
… one option is to transition marginal farmland to perennial crops. In this study, we considered the potential for Multifunctional Perennial Cropping Systems (MPCs) that would simultaneously provide production and conservation benefits. We examined adoption potential of MPCs on marginal farmland …
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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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Agroforestry in the Temperate Landscape: Precedent, Practice, and Design Proposal
… limited. These practices, which include: Alley Cropping, Multi-functional Riparian Buffers, Short-rotation coppice, Non-timber forest farming, and novel crop breeding have potential to radically reshape American agricultural practices. As sediment and erosion control becomes stricter in …
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Multifunctional perennial landscape: small farm design in the Upper Sangamon River Watershed
… of Crop Sciences titled “Multifunctional Perennial Cropping Systems (MPCS) for Introducing Local Food and Biomass Production for Small Farmers in the Upper Sangamon River Watershed (USRW)”. Spearheaded by Dr. Sarah Taylor Lovell, Assistant Professor at the University of Illinois, this …
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Soil microbial community dynamics associated with agricultural crops
… US. The experimental treatments were plots of perennial ryegrass varying in perennial ryegrass genotypic composition and diversity. My objective was to determine whether the genotypic composition and diversity of the perennial ryegrass stand influenced the structure (Chapter 1) and composition …
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Intercropping dynamics in a perennial Kernza cropping system
A research agenda has been undertaken to perennialize agrarian landscapes in response to structural issues inherent to annual agricultural production, which compromise the sustainability and resiliency of cropping systems. These issues include soil erosion, nutrient runoff, declining soil organic …
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The design and implementation of multifunctional woody polycultures: Landowner preferences and pathways to improve agricultural conservation
Land retirement has been the primary approach used by the federal government for environmental protection of agricultural landscapes since 1985, but it is increasingly being supplemented by conservation initiatives on working lands. The shift towards using conservation practices on working lands …
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Evaluating Crop Physiological and Stand Age-Related Controls Over Soil Carbon and Nitrogen Dynamics In Perennial and Annual Grains
… crop tissues and soil pools is expressed in perennial grains such as intermediate wheatgrass (IWG, Thinopyrum intermedium (Host) Barkworth and Dewey), and whether these processes change within a growing season and across IWG stand age. To evaluate these ideas, we established three studies to …