نتایج جستجو برای: evaluating the implemented sprinkler irrigation systems

تعداد نتایج: 16252036  

Journal: :ماشین های کشاورزی 0
هانیه روشن سید جلیل رضوی مهدی قیصری

water scarcity is today’s world biggest challenge which requires different countries to manage their water resources in the most efficient way. sprinkler irrigation increases water consumption efficiency due to more uniform distribution of water across the field. precision farming is based on the site-specific use of inputs according to soil characteristics and plant needs. one of the main inpu...

ژورنال: علوم آب و خاک 2009
اخوان, علیرضا, بهار, مسعود, سعیدی, قدرت اله, لک, محمدرضا,

To understand the role of relative humidity rate, host genotype, inoculation method and growth stage in epidemiology of bean common blight, two greenhouse experiments were carried out monitoring epiphytic population size of Xanthomonas axonopodis pv. phaseoli (Xap) and disease severity. The result showed significant differences among genotypes, inoculation methods and growth stages for epiphyti...

2014
Sofiane Ouazaa Javier Burguete M. Pilar Paniagua Raquel Salvador Nery Zapata

Ballistic simulation of the spray sprinkler for self-propelled irrigation machines requires the incorporation of the effect of the jet impact with the deflecting plate. The kinetic energy losses produced by the jet impact with the spray plate were experimentally characterized for different nozzle sizes and two working pressures for fixed spray plate sprinklers (FSPS). A technique of low speed p...

اخوان, علیرضا, بهار, مسعود, سعیدی, قدرت اله, لک, محمدرضا,

To understand the role of relative humidity rate, host genotype, inoculation method and growth stage in epidemiology of bean common blight, two greenhouse experiments were carried out monitoring epiphytic population size of Xanthomonas axonopodis pv. phaseoli (Xap) and disease severity. The result showed significant differences among genotypes, inoculation methods and growth stages for epiphyti...

2012
A. M. SHELTON

J. Econ. Entomol. 72: 261-264 (1979) Potatoes grown under furrow irrigation sustained over 58 times greater infestation by Phthorimaea operCIIlella (Zeller) and 3 times more green tubers than potatoes grown under sprinkler irrigation even though foliage tuberworm populations, soil type, and soil moisture levels were similar. Water usage on a per ha basis was more efficient under sprinkler irrig...

Journal: :چغندرقند 0
حسنعلی شهبازی مربی مرکز تحقیقات کشاورزی و منابع طبیعی خراسان رضوی اردوان ذوالفقاران مربی مرکز تحقیقات کشاورزی و منابع طبیعی خراسان رضوی علیرضا قائمی استادیار مرکز تحقیقات کشاورزی و منابع طبیعی خراسان رضوی مسعود احمدی استادیار مرکز تحقیقات کشاورزی و منابع طبیعی خراسان رضوی رحیم محمدیان دانشیار مؤسسه تحقیقات چغندرقند

to determine the effects of different irrigation and salinity levels on qualitative and quantitative yield of sugar beet, an experiment was conducted for two years (2006-07)at torogh agricultural research center, mashhad, iran, using two sprinkler systems. each of the two irrigation systems was connected to two water sources with 1 and 6 ds/m salinity. irrigation was performed via two sprinkler...

Fatemeh Askari Bozayeh Hassan Afrakhteh Maryam Armand

Due to its location in the dry belt, the vast country of Iran has always been faced with the problem of water shortages. In such a climate one should take measures to increase the productivity and improve the efficiency of irrigation through expansion of water-conserving technology in the agricultural sector, as this is the largest and most important consumer of water. Therefore this study aime...

2017
Jian Jiao Yadong Wang Liliang Han Derong Su

Sprinkler selection influences the water distribution uniformity of center pivot irrigation systems. The sprinkling uniformity of the center pivot is crucial for the yield and quality of crops on a large scale. Rotating and fixed spray plate sprinklers (RSPSs and FSPSs) are the two most popular types. However, sprinkler selection is mainly based on price, not on differences in performance betwe...

Journal: :چغندرقند 0
محمدرضا ملک زاده مربی پژوهشی مؤسسه تحقیقات گیاهپزشکی کشور

in order to improve the efficiency of irrigation systems and investigate their impact on the pest population levels, furrow and sprinkler irrigation systems were compared in sugar beet fields. in this study, three different fields were chosen and irrigated by one of the furrow, classic and center pivot irrigation systems.  in each field, 20 plots were randomly selected of which 10 plots were ma...

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