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.
Results
Showing 1 to 20 of 37 for “"conservation tillage"”.
-
Conservation tillage methods for cabbage production
… this study were to assess the applicability of conservation tillage systems for cabbage production. Four tillage systems (conventional tillage, CT; no-tillage, NT; and two types of strip tillage—Ro-till, RT, and chisel plow, CP) and three planting dates (early, mid and late) were compared in …
-
Conservation tillage machinery for broccoli production
… to reduce erosion and reap the other benefits of conservation tillage, a strip tillage machine named FOR2 was designed, developed and tested. FOR2 prepares the seedbed and places the seed in one pass through the field. This thesis reports the qualitative and quantitative evaluation of FOR2 based …
-
Impact of Conservation Tillage on Soil Erosion and the Agronomic Performance of Flue-Cured Tobacco
Conservation tillage tobacco production has gained little producer acceptance since introduction in the late 1960's. Yield reductions, tobacco quality issues, unacceptable weed control, and inadequate planting equipment limited practice adoption and substantiated the need for continued research. …
-
Evaluation of Cover Crops, Conservation Tillage, and Nitrogen Management in Cotton Production in Southeastern Virginia
… compaction and cotton yield response to strip-tillage compared to no-tillage with a precision planted tillage radish and 2) the influence of legume mix, rye, and legume mix/rye combination cover crops with four in-season nitrogen (N) rates applied to cotton on cover crop biomass, cover crop …
-
Comparative effects of conservation tillage systems on selected soil properties and yields of groundnut(arachis hypogaea)
Conservation Agriculture has been recommended as a sustainable farming system for many crops in Zambia based on reported improvements in soil infiltration, moisture, soil carbon, microbial activity and reduced bulk density over time. However, the effects in groundnuts such as plant development, …
-
Comparative effects of conservation tillage systems on selected soil properties and yields of groundnut(arachis hypogaea)
Conservation Agriculture has been recommended as a sustainable farming system for many crops in Zambia based on reported improvements in soil infiltration, moisture, soil carbon, microbial activity and reduced bulk density over time. However, the effects in groundnuts such as plant development, …
-
Preconditional factors affecting the adoption of conservation tillage practices for Elgin, Middlesex and Oxford counties (Ontario).
… factors which influence farmers' adoption of conservation tillage for three southwestern Ontario counties: Elgin, Middlesex and Oxford. Nine independent variables were designed and tested against the adoption of conservation tillage. The independent variables represented physical conditions on …
-
Modeling Farmers' Decision to Use Conservation Tillage and Genetically Modified Soybean Seed in a Joint Framework
Based on the structure of the theoretical model, econometric models are developed to empirically estimate factors that affect adoption of the two technologies and to derive the implications of these decisions on input usage. Results of these models did not support the hypothesis that the two …
-
Surface and groundwater quality impacts of conservation tillage practices on burley tobacco production systems in Southwest Virginia
… and deep percolation losses from conventional tillage (CT), strip tillage (ST), and no-till (NT) treatments in a burley tobacco production system. The field experiment results show that the CT treatment yielded more total runoff, 93.6 mm, than ST and NT. Compared to the CT treatment, ST reduced …
-
Nitrate and phosphorus leaching, surface soil nitrate concentrations, and nutrient balances under conservation tillage and cover crops in central Illinois
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2027-08-01
-
Factors influencing the adoption of soil conservation practices in Virginia's Piedmont Bright Leaf Erosion Control Area
The conservation behavior of a sample of farmers in the Piedmont Bright Leaf Erosion Control Area of Virginia is examined to determine the factors which influence the farmers' decisions to use soil conservation practices. The relationship between farmers' use of conservation tillage and other …
-
Targeting tillage intensity in Michigan soybean systems: On-farm observations and multivariate modeling of grower decision-making with implications for yield and soil carbon
… objectives when deciding what level of tillage intensity is appropriate for a given field. Research has shown that decreasing soil disturbance can reduce the cost of soybean production, but the effects of conservation tillage on the soil environment and soybean performance are elusively …
-
Biophysical economic analysis of nutrient and sediment management practices in the Mississippi Alluvial Valley
… This dissertation looked at nutrient and tillage management practices that could help farmers address future total maximum daily loads (TMDLs) for the Cabin-Teele sub-watershed, within the lower Mississippi River Basin. The dissertation had two objectives. The first objective was to …
-
Strip-Tillage Production Systems for Tobacco
Conservation tillage production systems for flue-cured tobacco (Nicotiana tabacum L.) have been studied for many years. Inadequate chemical weed control and lack of acceptable pesticide and fertilizer application resulted in consistently lower yields and inferior cured leaf quality. The development …
-
Strip-till flue-cured tobacco production in Virginia
… that typically receives four to eight primary tillage passes before being transplanted on a raised row-ridge. Strip-tillage, a conservation tillage system that only requires tilling a small strip before transplanting, has been shown to be effective for tobacco producers in southside Virginia. …
-
Effect of dry wheat straw mulching and cowpea-maize intercropping on soil erosion and maize yield in Zambia
… with respect to crop production. Thus, conservation tillage, along with complementary practices such as soil cover and crop diversity has become a better option to ensure sustainable food production and maintenance of environmental sustainability. A field study was conducted to evaluate …
-
Broad-scale Assessment of Crop Residue Management Using Multi-temporal Remote Sensing Imagery
Tillage practices have changed dramatically during the past several decades as agricultural specialists have recognized the unfavorable environmental effects of mechanized tillage. Alternatively, conservation tillage management can mitigate adverse environmental impacts of tillage, such as soil and …
-
Evaluating Conservation Agricultural Management for Soil Health Outcomes in Southeastern Virginia
… are putting a strain on land resources. Conservation agricultural practices 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 …
-
A comparison of the performance of Namibia-specific conservation and conventional tillage technologies as used for pearl millet production in northern Namibia
… both using conventional and Namibia Specific Conservation Tillage (NSCT) technologies. Two conventional tillage (CV) treatments (i.e. tractor-drawn disc harrow (TDH) and animal-drawn mouldboard plough (AMP) were compared to two NSCT treatments (tractor-drawn ripper furrower (TRF) and …
-
An assesment of the financial viability of investing in an animal drawn ripper
There are two types of conservation tillage methods commonly used in Zambia-planting basins for hand hoe farmers and ripping for farmers with access to animal draft power and implements. Maize, cotton, soyabean, sunflower and groundnuts are among the major crops grown by the rural households and …
Page 1 of 2