Impacts of Conservation Tillage Systems on Long-Term Crop Yields
نویسندگان
چکیده
منابع مشابه
Long-Term Crop Response to Conservation Tillage
In 1987, the United States Department of Agriculture (USDA-ARS) National Sedimentation Laboratory, in cooper ation with the Mississippi Agricultural and Forestry Experi ment Station (MAFES) and the Natural Resources Conservation Service (NRCS), initiated an interdisciplinary research project to develop profitable and environmentally sustainable conservation production systems for silty upland...
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Long-term field experiments are needed to fully realize positive and negative impacts of conservation tillage and poultry litter application. A study was initiated on a Decatur silt loam soil at the Tennessee Valley Research and Extension Center, Belle Mina, AL, USA in 1996 to evaluate cotton (Gossypium hirsutum L.) performance with long-term poultry litter (PL) application under different till...
متن کاملDryland soil chemical properties and crop yields affected by long-term tillage and cropping sequence
Information on the effect of long-term management on soil nutrients and chemical properties is scanty. We examined the 30-year effect of tillage frequency and cropping sequence combination on dryland soil Olsen-P, K, Ca, Mg, Na, SO4-S, and Zn concentrations, pH, electrical conductivity (EC), and cation exchange capacity (CEC) at the 0-120 cm depth and annualized crop yield in the northern Great...
متن کاملInter-row tillage for improved soil and water conservation and crop yields on crusted Alfisols
In the semi-arid tropics (SAT), 33% areas are occupied by Alfisols and related soils. In SAT these soils have low structural stability and thereby tend to form seal and crusts at the surface. Due to this a large proportion of the rain that falls on Alfisols during the early part of the rainy season, is normally lost as runoff thus causing high soil loss as well as moisture stress to crops. Two ...
متن کاملPursuing Conservation Tillage Systems for Organic Crop Production
Introduction ............................................................................................................................2 Organic Farming & the Tillage Dilemma .........................................................................3 Mulch Tillage .........................................................................................................................5 Ridge Ti...
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ژورنال
عنوان ژورنال: Journal of Agronomy
سال: 2008
ISSN: 1812-5379
DOI: 10.3923/ja.2009.14.20