نتایج جستجو برای: tillage 2365 kg ha

تعداد نتایج: 244611  

2004
Chandra K. Reddy

Triticum spp.), corn (Zea mays L.), and soybean [Glycine max (L.) Merr.], which generally have had success Although use of no-tillage in cotton (Gossypium hirsutum L.) pro with no-tillage. Cotton does not produce enough residuction in the southeast USA has dramatically increased recently, dues to supply the C necessary to increase soil organic reports of reduced seedling emergence, poor plant e...

2017
Wallace Wilhelm James S. Schepers M. L. Mielke John W. Doran James R. Ellis Walter W. Stroup

Wilhelm, W.W., Schepers, J.S., Mielke, L.N., Doran, J.W., Ellis, J.R. and Stroup, W.W., 1987. Dryland maize development and yield resulting from tillage and nitrogen fertilization practices. Soil Tillage Res., 10: 167-179. Conservation tillage ( 7 30% residue cover) has proven to be very effective in reducing runoff and erosion and in increasing soil water storage. In dryland cropping situation...

Journal: :پژوهش های کاربردی زراعی (زراعت سابق) 0
جلال زکیئی کارشناس ارشد مکانیزاسیون دانشگاه کشاورزی و منایع طبیعی رامین محمدامین آسودار دانشیار، گروه ماشین های کشاورزی، دانشگاه کشاورزی و منابع طبیعی رامین- اهواز مرتضی الماسی استاد، گروه ماشین های کشاورزی، دانشکده کشاورزی دانشگاه چمران اهواز

the erosion in dryland caused decrease in yield and soil quality, especially in slope land with conventional tillage. to investigate effect of tillage and planting methods in slope land on erosion and yield of dryland wheat, an experiment was conducted in 2007 at kermanshah province. the statistical design for this research was strip split plots in rcb (randomized complete blocks) with three re...

2008
Rick A. Boydston Harold P. Collins Ashok K. Alva

Volunteer potato is a major weed pest of sweet corn in regions where winter soil temperatures fail to kill tubers left in the ground after harvest. Studies were conducted in 2004 to 2005 to determine the effect of combining atrazine with mesotrione applied POST on volunteer potato control and new tuber production in sweet corn. Mesotrione at 0.035, 0.07, and 0.1 kg/ha and atrazine at 0.3, 0.6, ...

Journal: :TheScientificWorldJournal 2001
J L Pikul T E Schumacher M Vigil

Diversified crop rotation may improve production efficiency, reduce fertilizer nitrogen (N) requirements for corn (Zea mays L.), and increase soil carbon (C) storage. Objectives were to determine effect of rotation and fertilizer N on soil C sequestration and N use. An experiment was started in 1990 on a Barnes clay loam (U.S. soil taxonomy: fine-loamy, mixed, superactive, frigid Calcic Hapludo...

2011
Job Kihara Christopher Martius Andre Bationo Paul L. G. Vlek

This study was aimed at quantifying soybean (Glycine max) nitrogen fixation under reduced tillage (RT) and conventional tillage (CT) in a tropical Ferralsol of the sub-humid zone of western Kenya, using the isotope N dilution method. Crop residue (CR) management was a superimposed treatment in soybean-maize rotation and intercropping systems. This study quantified N in abscised soybean leaves. ...

2013
Sikander Khan Tanveer Xiaoxia Wen Xing Li Lu Junli Zhang Yuncheng Liao

A two year (2010-2012) study was conducted to assess the effects of different agronomic management practices on the emissions of CO2 from a field of non-irrigated wheat planted on China's Loess Plateau. Management practices included four tillage methods i.e. T1: (chisel plow tillage), T2: (zero-tillage), T3: (rotary tillage) and T4: (mold board plow tillage), 2 mulch levels i.e., M0 (no corn re...

Journal: :پژوهش های زراعی ایران 0
عبدالهی عبدالهی غدیری غدیری بحرانی بحرانی

abstract conservation tillage practices integrated with appropriate residue management is an efficient approach in sustainable agriculture to prevent the removal or burning of crop residues. two years field experiments were conducted to evaluate the effect of wheat residue management on yield, yield component and morphophysiological characteristics of corn. experimental design was split plot us...

2010
H. P. Collins S. Haile-Mariam

Intensive agriculture and increased N-fertilizer use have contributed to elevated emissions of the greenhouse gases, CO2, CH4, and N2O. In this study, the exchange of the greenhouse gases, CO2, N2O, and CH4, between a Quincy fine sand (mixed, mesic Xeric Torripsamments) soil and atmosphere was measured in a sweet corn (Zea mays L.) sweet corn potato (Solanum tuberosum L.) rotation during the 20...

2012
Shenzhong Tian Tangyuan Ning Hongxiang Zhao Bingwen Wang Na Li Huifang Han Zengjia Li Shuyun Chi

The objective of this study was to quantify soil methane (CH(4)) and nitrous oxide (N(2)O) emissions when converting from minimum and no-tillage systems to subsoiling (tilled soil to a depth of 40 cm to 45 cm) in the North China Plain. The relationships between CH(4) and N(2)O flux and soil temperature, moisture, NH(4) (+)-N, organic carbon (SOC) and pH were investigated over 18 months using a ...

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