نتایج جستجو برای: alternate furrow irrigation

تعداد نتایج: 69503  

Journal: :iran agricultural research 2016
s.m. nassiri a.r. sepaskhah m.m. maharlooei

abstract- maize production, which is ranked after wheat and barely in fars province, iran, needs a considerable amount of irrigation water that is not available in scarce water conditions in drought situations. therefore, proper planting method can improve irrigation water management. the objectives of the present study were to investigate the effects of two planting methods, on-bed and in furr...

A.R. Sepaskhah M.M. Maharlooei S.M. Nassiri

ABSTRACT- Maize production, which is ranked after wheat and barely in Fars province, Iran, needs a considerable amount of irrigation water that is not available in scarce water conditions in drought situations. Therefore, proper planting method can improve irrigation water management. The objectives of the present study were to investigate the effects of two planting methods, on-bed and in furr...

Journal: :مدیریت آب و آبیاری 0
ساره سیاری دانشجوی دکتری سازه های آبی، بخش مهندسی آب، دانشگاه شهید باهنر کرمان، ایران مجید رحیم پور دانشیار بخش مهندسی آب، دانشگاه شهید باهنر کرمان، ایران محمد ذونعمت کرمانی استادیار بخش مهندسی آب، دانشگاه شهید باهنر کرمان، ایران

furrow irrigation is the most common type of surface irrigation. determine the advance and recession time in the field is required the accurate measurement and this can be costly and time consuming. winsrfr model is used for simulation furrow irrigation by zero inertia and kinematic wave engines. using this model, advance time, reaction time, infiltration depth, runoff depth and application eff...

Journal: :مرتع و آبخیزداری 0
حسین بشری استادیار دانشکدة منابع طبیعی، دانشگاه صنعتی اصفهان مصطفی ترکش اصفهانی استادیار دانشکدة منابع طبیعی، دانشگاه صنعتی اصفهان طیبه شاه آبادی کارشناس ارشد بیابان‏زدایی، دانشکدة منابع طبیعی، دانشگاه صنعتی اصفهان محمدرضا مصدقی دانشیار گروه خاک‏شناسی، دانشکدة کشاورزی، دانشگاه صنعتی اصفهان

abstract this study aimed to investigate the effects of urban wastewater on some soil physical and chemical properties in segzi, east isfahan. six sites were selected considering the planted species (haloxylon persicum and nitraria schoberi) and irrigation types (control or no irrigation, water logged and furrow irrigation methods). the 4 to 12 replications were chosen in each site depending on...

Journal: :Journal of environmental quality 2010
R D Lentz G A Lehrsch

Use of dairy manure to supply crop nutrients is gaining broader acceptance as the cost of fertilizer rises. However, there are concerns regarding manure's effect on water quality. In 2003 and 2004, we measured sediment, NO3-N, NH4-N, K, dissolved reactive P (DRP), and total P (TP) concentrations in runoff from furrow irrigated field plots (6-7 irrigations yr(-1)) cropped to corn (Zea mays L.) i...

2014
Jie Wu Wei Guo Jinfei Feng Lanhai Li Haishui Yang Xiaohua Wang Xinmin Bian

Drip irrigation is broadly extended in order to save water in the arid cotton production region of China. Biochar is thought to be a useful soil amendment to reduce greenhouse gas (GHG) emissions. Here, a field study was conducted to compare the emissions of nitrous oxide (N2O) and methane (CH4) under different irrigation methods (drip irrigation (D) and furrow irrigation (F)) and fertilization...

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