نتایج جستجو برای: evaluating the implemented sprinkler irrigation systems

تعداد نتایج: 16252036  

2002
Roy F. Spalding Mary E. Exner

A sprinkler irrigation system was tested to assess its efficacy for volatilizing organic chemicals in pumped groundwater. In field tests involving the analysis of more than 250 samples collected from beneath a spray irrigation system, removal rates of ethylene dibromide (EDB), 1,1,2-trichloroethylene (TCE), 1,1,1-trichloroethane (TCA), and carbon tetrachloride (CT) in samplers placed 0.5 m abov...

Journal: :پژوهش آب در کشاورزی 0
امین رستمی دانشجوی سابق کارشناسی ارشد، گروه مهندسی آب، دانشگاه تبریز، ایران. علی اشرف صدرالدینی استاد گروه مهندسی آب، دانشگاه تبریز، ایران. امیرحسین ناظمی استاد گروه مهندسی آب، دانشگاه تبریز،ایران رضا دلیر حسن نیا استادیار گروه مهندسی آب، دانشگاه تبریز، ایران احمد فاخری فرد استاد گروه مهندسی آب، دانشگاه تبریز، ایران

use of the double ring infiltrometer to measure soil water infiltration in center pivot irrigation systems is not an accurate approach; because the real conditions of infiltration under center pivot sprinklers is different from what happens in the double ring. in this study, the infiltration parameters were determined under real conditions of a center pivot system. for this purpose, a single ri...

Journal: :نشریه علمی - پژوهشی هیدرولوژی کاربردی 0
amin rostami sari university ali a. sadraddini tabriz university amir h. nazemi tabriz university reza delir hasannia tabriz university

use of the double ring infiltrometer to measure soil water infiltration in center pivot irrigation systems isn’t an accurate approach because the real conditions of infiltration under center pivot sprinklers is different from what happens in the double ring. in this study the infiltration parameters were evaluated in real conditions of a center pivot system. for this purpose a single ring with ...

2007
J. Kristian Aase David L. Bjorneberg Robert E. Sojka

Many semiarid and arid soils are prone to irrigation-induced erosion. Polyacrylamide (PAM) greatly reduces erosion from furrow irrigation. We hypothesized that PAM applied via sprinklers will provide erosion control and benefit water infiltration and aggregate stability. Screened (6.4 mm) Rad silt loam (coarse silty, mixed, superactive mesic Durinodic Xeric Haplocambid) was placed in 1.5 by 1.2...

2005
Melissa C. Baum Michael D. Dukes Grady L. Miller

Irrigation has become commonplace for residential homeowners desiring high quality landscapes in Florida. The goal of this project was to document irrigation system uniformity in Central Florida and to quantify distribution uniformity of residential sprinkler equipment under controlled conditions. The catch-can testing procedure used was a modified version of both the American Society of Agricu...

Journal: :تحقیقات مهندسی کشاورزی 0
محمد جلینی استادیار پژوهش بخش تحقیقات فنی و مهندسی کشاورزی، مرکز تحقیقات کشاورزی و منابع طبیعی خراسان رضوی

this research was conducted at torogh agricultural research station in khorasan-e razavi province to determine the impact of irrigation cutoff at different growth stages and percentage of water use on the yield and water use efficiency (wue) of wheat cultivars using sprinkler irrigation. the study was done from 2006-2008. the experimental design was a randomized complete block design with a str...

Journal: :Arab Universities Journal of Agricultural Sciences 2021

محمدرضا علیرضایی, , ابراهیم صالحی, , محمدجواد منعم, ,

Recent studies have shown poor performance of irrigation systems, which indicates the requirement for special attention to performance improvement. The first step for improving the performance of irrigation systems is evaluation of the present situation. Performance evaluation methodologies presented so far are either qualitative such as DA (Diagnostic Analysis), RA (Rapid Appraisal) and FA (Fr...

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