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 57 for “"no-tillage"”.
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NO-TILLAGE RENOVATION OF ALFALFA STANDS
… 28 May 1979 with a Tye Pasture Pleaser('R) no-till seeder. G.</p>
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No-tillage squash production on agricultural soil and minesoil
No-tillage establishment into a killed surface mulch on agricultural soil increased marketable acorn squash (Curcurbita pepo L. 'Table Ace’) yield by 29% as compared to a conventional tillage practice. These yield differences are attributed to increased plant population and possible improved water …
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The use of legume cover crops in no-tillage broccoli and cabbage production
… in 1983 and 1984 to compare conventional tillage (CT) versus no-tillage (NT) production of broccoli and cabbage. The tillage treatments were applied in combination with four rates of applied nitrogen fertilizer and three cover crops: hairy vetch (<u>Vigia villosa</u> Roth), Austrian winter …
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Efficacy of Hercides for weed control in soyabean(glycine max)under a no-Tillage cultivation system in Zambia
A study was conducted at Lilayi farm in a no-tillage crop production system. The objective of the study was to assess the efficacy of new herbicides in a no-tillage soybean cultivation system in Zambia. Eleven treatments were used in this study. These include four preemergence, five postemergence …
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Relationships between seedbed preparation and growth of corn and tobacco plants
… objectives of the investigation were to evaluate no tillage and tillage by plowing with respect to yield of tobacco and corn plants and to compare uptake of P by corn plants from surface and mixed applications of superphosphate. A further aim was to determine the relationship between P uptake by …
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The influence of application timing and soybean (Glycine max L.) canopy on imazethapyr efficacy
… row spacings and reduced herbicide rates in no-tillage systems shows promise (DeFelice et al., 1989). However, the issues of the appropriate herbicides to use, proper application timings, and the size of the weeds at the times of application become important factors to address. These concerns …
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Effects of overseeded legume living mulches and tillage on weed suppression and broccoli yield
… in Blacksburg, Virginia to study the effects of tillage (conventional plow-disk and no-tillage) and overseeding (underseeding) of legume cover crops (red clover, Trifolium pratense L.; white clover, Trifolium repens L.; and hairy vetch, Vicia villosa Roth.) at transplanting on weed suppression …
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Analysis of the Profitability of Conservation Agriculture for Participating Smallholder Maize Farmers in the Vhembe District of Limpopo Province
… for smallholder farmers demand complementary technologies and supporting policies. In South Africa, the adoption efforts for conservation agriculture have been done without a consideration of the economic viability of maize production for smallholder farmers. This study aims to analyze the …
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Analysis of best management practices implementation on water quality using the Soil and Water Assessment Tool (SWAT)
… River (LVR) watershed in east-central Illinois (predominately Vermillion County) is a mainly agricultural tile-drained watershed, where the dominant soil series are Drummer silty clay loam and Flanagan silt loam. Using previously collected data from the watershed outlet (1998-2000) and land …
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Evaluating Conservation Agricultural Management for Soil Health Outcomes in Southeastern Virginia
… such as cover cropping and conservation tillage systems (e.g., strip tillage, minimal tillage, or no tillage) are implemented to improve soil properties, but soil health outcomes in Coastal Plain cropping systems have been inconsistent and may take decades or longer to occur. Improving …
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A computer simulation model for predicting pesticide losses from agricultural lands
… of pesticides (Pesticide Losses In Erosion and Runoff Simulator, PLIERS) was developed. PLIERS accounts for pesticide losses by degradation and volatilization, the washoff of pesticides from plant canopy and surface residue, the adsorption and desorption of pesticides to and from soil particles, …
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Efficacy of glufosinate and weed control in transformed corn and soybean
… The use of this herbicide has been limited to no-tillage prior to planting or in noncrop areas. Recent developments in gene transfer technology have produced crop plants that are tolerant to postemergence applications of glufosinate. Information on glufosinate efficacy on annual weed species is …
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Red morningglory (Ipomoea coccinea L.) biology and management in sugarcane
… atrazine at 3.36 kg ai/ha, diuron plus hexazinone at 1.57 + 0.44 kg ai/ha, flumioxazin at 0.14 kg ai/ha, sulfentrazone at 0.21 kg ai/ha, and metribuzin at 2.52 kg ai/ha. At 49 DAT, atrazine at 4.48 kg/ha provided only 70 % control, which was equivalent to that for diuron plus hexazinone and …
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The influence of meteorological events and cultural practices on sclerotinia crown and stem rot of alfalfa, caused by Sclerotinia trifoliorum
… causes serious spring losses in some fall=sown, no-tillage alfalfa fields. In microplots artificially infested with sclerotia, greatest numbers of apothecia were found during November and December. Temperature and rainfall had significant impact on apothecium development. A proposed prediction …
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Nematodes as indicators of sustainable soil health management practices in corn-soybean production
… multicellular organisms causing significant economic and ecological impacts, and their community composition is widely used as a bioindicator of soil health. Current methodologies for nematode assessment require further refinement and advancement. This thesis addressed knowledge gaps by …
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Interactions between cover crop residue and microbial community affect weed suppression
… in three agricultural management systems (tillage, no tillage and organic system). Overall, the organic and tillage management systems offered higher microbial and cover crop-derived weed suppression than the no-tillage system. Different microbial communities were associated with dead seeds …
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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 …
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Fall and spring broccoli yields and weed control under no-till and conventional tillage with overseeded legume living mulches
… Virginia. Objectives were to determine the tillage main-plot (CT = conventional tillage, and NT = no-tillage) and weed-control subplot (C = no overseeding or preemergent herbicide; HB = oxyfluorfen; RC = red clover (<i>Trifolium pratense</i> L.); WC = Dutch white clover (<i>Trifolium …
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