نتایج جستجو برای: border irrigation

تعداد نتایج: 76607  

Journal: :تحقیقات مهندسی کشاورزی 0
منصور معیری عضو هیئت علمی بخش تحقیقات فنی و مهندسی کشاورزی مرکز تحقیقات کشاورزی صفی آباد فریدون کاوه عضو هیئت علمی دانشگاه آزاد اسلامی واحد علوم تحقیقات تهران.

this study was conducted to evaluate the current management of furrow and border irrigation systems in the dez irrigation network. of the eight farms studied, three grew wheat and one each grew corn, sugar beets, lettuce, sesame and mung beans. the study found water application efficiency in the five farms with furrow irrigation systems to be 25.8% and for the three farms with border irrigation...

2014
Zhou Beibei Wang Quanjiu Tan Shuai

A theory based on Manning roughness equation, Philip equation and water balance equation was developed which only employed the advance distance in the calculation of the infiltration parameters and irrigation coefficients in both the border irrigation and the surge irrigation. The improved procedure was validated with both the border irrigation and surge irrigation experiments. The main results...

Journal: :international journal of agricultural science, research and technology in extension and education systems 2011
f. ghasemi sahebi m. hekmat e. pourkhiz

using modern irrigation methods such as border irrigation is one way for an optimum usage of water. potato, for this study, was cultured in a farm located at kermanshah faculty of agriculture to evaluate the efficiency of border irrigation. the culture potato was the agria variety and the applied treatment were 50, 75, and 100 percent of potato plant`s water requirement. tapes were 12 m and the...

Journal: :Journal of water and health 2008
Murray Close Rod Dann Andrew Ball Ruth Pirie Marion Savill Zella Smith

Intensification of dairying on irrigated pastures has led to concern over the microbial quality of shallow groundwater used for drinking purposes. The effects of intensive dairying and border-strip irrigation on the leaching of E. coli and Campylobacter to shallow groundwater were assessed over a three-year period in the Waikakahi catchment, Canterbury, New Zealand. Well selection excluded othe...

Journal: :Proceedings of the New Zealand Grassland Association 1985

2011
Jianwen Li Xihuan Sun Juanjuan Ma Xianghong Guo Jingling Li

With the aim of estimating infiltration properties of surface irrigation and further saving water efficiently, a zero-inertia model was adopted for simulating the surface flow of border irrigation. The parameters identification of the model has been derived from hybrid volume balance model coupling artificial neural networks and numerical inversion approaches including differential evolution. W...

ژورنال: علوم آب و خاک 1999
آبسالان, شکراله, موسوی, سیدفرهاد, مصطفی زاده, بهروز ,

This study aims to evaluate the present management of border irrigation systems applied to wheat, alfalfa and sugar-beet farms in Boyer-Ahmad and Gachsaran cities in Kohgiloyeh and Boyer-Ahmad Province. Experimental farms included 8 alfalfa farms, 5 wheat farms and 5 sugar-beet farms. The experiments were conducted at different growth stages of plants and customary borders with prevalent dimens...

آبسالان, شکراله, موسوی, سیدفرهاد, مصطفی زاده, بهروز ,

This study aims to evaluate the present management of border irrigation systems applied to wheat, alfalfa and sugar-beet farms in Boyer-Ahmad and Gachsaran cities in Kohgiloyeh and Boyer-Ahmad Province. Experimental farms included 8 alfalfa farms, 5 wheat farms and 5 sugar-beet farms. The experiments were conducted at different growth stages of plants and customary borders with prevalent dimens...

Journal: :Journal of Irrigation and Drainage Engineering 1985

Journal: :Proceedings of the New Zealand Grassland Association 1985

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