نتایج جستجو برای: normal irrigation control and deficit irrigation

تعداد نتایج: 17049380  

Journal: :journal of agricultural science and technology 2011
s. maleki-farahani m. r. chaichi d. mazaheri r. tavakkol afshari gh. savaghebi

the effect of different fertilizing systems and drought stress during grain development on grain minerals of barley (hordeum vulgare l.) was studied in field experiments on a clay-loamy soil during 2007 and 2008 growing seasons. the treatments consisted of three irrigation regimes (main plots) of: non-stressed (ns, normal irrigation continued until the end of plant physiological maturity), ...

2010
Y. KUSLU U. SAHIN T. TUNC F. M. KIZILOGLU

KUSLU, Y., U. SAHIN, T. TUNC and F. M. KIZILOGLU, 2010. Determining water-yield relationship, water use efficiency, seasonal crop and pan coefficients for alfalfa in a semiarid region with high altitude. Bulg. J. Agric. Sci., 16: 482-492 A field study was conducted to determine effects of seasonal deficit irrigation on plant dry forage yield and water use efficiency of alfalfa for a 2-year peri...

2010
Nannan Wen Daoliang Li Daokun Ma Qisheng Ding

Abstract. Based on the problems caused by current automatic irrigation system with a large number of cables, such as installation, maintenance, and difficult expansion, this paper proposed a wireless integrated irrigation control system and developed a wireless intelligent valve controller which can satisfy the requirements for agricultural irrigation in our country. The controller consisted o...

Journal: :پژوهش های حبوبات ایران 0
سلمان انجم شعاع حمید معین راد حسین ابراهیمی

in order to study the effects of different irrigation levels on yield, yield components and drought tolerance of four chickpea cultivars, a farm experiment was conducted in mashhad climatic condition during 2008-2009 growing season. four irrigation levels including: t1= 100% etc (full irrigation), t2= 90% etc (deficit irrigation), t3=80% etc (deficit irrigation) and t4=50% etc (deficit irrigati...

بشارت, سینا, حسنی, عباس, رضاوردی نژاد, وحید, شبانیان اصل, مریم,

This experiment was conducted to determine evapotranspiration, crop coefficient and water use efficiency of cucumber and tomato for a period of six months in the Resarch Greenhouse of Urmia University. Daily evapotranspiration of cucumber, tomato and reference crop was measured using lysimeter method. Based on the results, cucumber evapotranspiration for growth period of 130 days was 272.4 mm a...

Journal: :اقتصاد و توسعه کشاورزی 0
عبدالرسول شیروانیان حسن حقیقت نیا سعید مهرجو

drought is common across the south of iran, especially in darab district. accordingly, studying the economic aspects of deficit irrigation technique – that is one of the basic strategies in water saving for reducing water use of cotton as one of the main agricultural products in darab district is essential. in order to investigate the deficit irrigation technique and to determine its economic t...

Journal: :علوم گیاهان زراعی ایران 0
سید علی محمد مدرس ثانوی استاد، دانشگاه تربیت مدرس، دانشکده کشاورزی، گروه زراعت و اصلاح نباتات، تخصص: فیزیولوژی گیاهان زراعی علی اکبر صادقی نژاد دانشجوی ارشد تربیت مدرس سیدعلی طباطبایی استادیار یزد کمال السادات اسیلان استادیار دانشگاه پیام نور کرج

in order to study the effect of water deficit stress at different growth stages on yield and seed oil quality of rapeseed cultivars, a field experiment was conducted as split-plot in a randomized complete block design arrangement with three replications in 2009-2010 growing seasons in abarkouh in iran. four levels of irrigation were located in the main plot including, (i1) normal irrigation bas...

Journal: :علوم گیاهان زراعی ایران 0
جواد نوری پور سی سخت دانشجوی کارشناسی ارشد دانشکده کشاورزی دانشگاه صنعتی اصفهان پرویز احسان زاده دانشیار دانشکده کشاورزی دانشگاه صنعتی اصفهان

water deficit stress is the most important environmental constraint for growth, yield and productivity of crops, including the oil seed crops. this study was aimed at studying the influence of differing irrigation régimes on growth, chlorophyll , proline and some antioxidants content along with grain yield, yield components and oil content of sesame genotypes using a 4-replicate split plot rand...

Journal: :پژوهش آب در کشاورزی 0

an experiment was conducted in 2011 to evaluate the effect of weed interference on sunflower yield in deficit irrigation and to study the grass and broadleaf weeds growth at different moisture condition. the experiment was arranged as factorial, randomized complete blocks with four replicates per treatment. treatments included different moisture conditions [40%, 60%, 80%, and 100 percent of cro...

2013
S. Mohan G. Loganathan

The use of indicators for sustainability evaluation is an important step towards operationalization of the concepts of sustainability and sustainable development. Many literatures on framework for sustainable water management consider any one dimension of sustainability. In this paper, the sustainability of an irrigation system is assessed from economic and environmental dimension. An optimizat...

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