نتایج جستجو برای: end furrow irrigation

تعداد نتایج: 444173  

2009
C. C. Truman

Crop production in Georgia and the Southeastern U.S. can be limited by water; thus, supplemental irrigation is often needed to sustain profitable crop production. Increased water capture would efficiently improve water use and reduce irrigation amounts and other input costs, thus improving producer’s profit margin. We quantified water capturing and erosional characteristics of furrow diking by ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Jennifer A Burney Rosamond L Naylor Sandra L Postel

Distributed irrigation systems are those in which the water access (via pump or human power), distribution (via furrow, watering can, sprinkler, drip lines, etc.), and use all occur at or near the same location. Distributed systems are typically privately owned and managed by individuals or groups, in contrast to centralized irrigation systems, which tend to be publicly operated and involve lar...

Journal: :Journal of environmental quality 2002
D Wang M C Shannon C M Grieve P J Shouse D L Suarez

Soil and water resources can be severely degraded by salinity when total salt input exceeds output in irrigated agriculture. This study was conducted to examine partitioning of Ca2+, Na+, and Cl- between soil and soybean [Glycine max (L.) Merr.] plants under different irrigation regimes with both field and modeling assessments. In drip and sprinkler treatments, the irrigation water was salinize...

2016
Ning Yin Qiuqiong Huang Zhihai Yang Yapeng Wang

This paper examines the impacts of off-farm employment on irrigation water efficiency (IWE) with a set of household level data collected in Hebei Province in North China. A major finding is that households with higher shares of laborers working off-farm locally seem to achieve higher IWEs. The effect of local off-farm employment is greater among those households that have made more efforts to u...

Journal: :تحقیقات مهندسی کشاورزی 0
ابوالفضل ناصری استادیار پژوهش بخش تحقیقات فنی و مهندسی مرکز تحقیقات کشاورزی و منابع طبیعی آذربایجان شرقی محمدرضا نیشابوری استاد گروه خاکشناسی دانشکده کشاورزی دانشگاه تبریز

soil infiltration characteristics affect the design, evaluation and management of furrow irrigation over afield. on the other hand, different variables influence furrow infiltration, making infiltration modeling for afield a complex process. this study was conducted to investigate the direct and indirect effects of allvariables affecting furrow infiltration. the blocked furrow method was used t...

A.R. Sepaskhah, M.H. Shahrokhnia

Development and use of crop growth models is an effective tool for agricultural planningand decision making in agricultural industry. Besides, the drought and limited supplies of waterin many areas of the world has increased attention to favourable strategies in farm managementsuch as efficient irrigation and planting methods. The objective of this study was to develop acrop model for safflower...

Journal: :International Journal of Environmental Science and Development 2013

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