نتایج جستجو برای: full irrigation

تعداد نتایج: 337850  

ژورنال: علوم آب و خاک 2022

Designing an optimal crop pattern and on-time water allocation of water resources along with deficit irrigation are among the optimal solutions to maximize the water economic efficiency index. In this paper, the simultaneous optimization of crop pattern and water allocation are discussed using the deficit irrigation method. The study area is located west of the Qazvin plain irrigation network. ...

2004
D. F. Wanjura S. J. Maas J. C. Winslow D. R. Upchurch

Canopy temperature is a useful indicator of crop water stress and can also be used for making timely irrigation scheduling decisions for center pivot and subsurface drip irrigation systems. However, it is not known how closely the measured canopy temperature from a circular area of the canopy surface compares with a larger continuous area that includes the full canopy width. A study was conduct...

براتی, وحید, غدیری, حسین,

In order to evaluate the effect of drought stress and nitrogen (N) fertilizer levels on yield, yield components and protein content of two barley cultivars (Yousef: six-rowed and Nimrouz: two-rowed), field experiments were conducted at the Fars Agricultural Research Center – Zarghan Station, during 2010-11 and 2011-12 growing seasons. The experiment was carried out as split-split plot based on ...

Journal: :به زراعی کشاورزی 0
لاله عباسلو دانشجوی سابق کارشناسی ارشد، گروه زراعت و اصلاح نباتات، دانشکدۀ کشاورزی، دانشگاه شیراز، شیراز، ایران سید عبدالرضا کاظمینی دانشیار، گروه زراعت و اصلاح نباتات، دانشکدۀ کشاورزی، دانشگاه شیراز، شیراز، ایران محسن عدالت استادیار، گروه زراعت و اصلاح نباتات، دانشکدۀ کشاورزی، دانشگاه شیراز، شیراز، ایران علی دادخدایی استادیار، گروه زراعت و اصلاح نباتات، دانشکدۀ کشاورزی، دانشگاه شیراز، شیراز، ایران

in order to evaluate the effects of drought stress and planting method on some physiological and biochemical characteristics of two chickpea cultivars (cicer arietinum l.) an experiment was conducted at the research station of college of agriculture, shiraz university using a split factorial based on randomized complete block design in four replications. the main factor was stopping irrigation ...

Journal: :international journal of agricultural management and development 2012
fakhrodin ghasemi sahebi masoud hekmat eman pourkhiz

to evaluate the effect of water, tape drip and furrow irrigation methods on the performance components and features of agria cultivar potato, an experiment was carried out in the agriculture faculty of kermanshah. repeated three times, this study was carried out in the form of full random blocks with the main factor of different amounts of irrigation water in three levels (50, 75, and100 percen...

Journal: :journal of agricultural science and technology 0
m. yildirim department of agricultural structures and irrigation, canakkale onsekiz mart university, faculty of agriculture and design, 17020, canakkale, turkey. k. demirel canakkale onsekiz mart university, faculty of architecture and design, 17020, canakkale, turkey. e. bahar ataturk soil, water and agricultural meteorology research station directorate, 39010 kırklareli, turkey.

this study assessed the optimum water need of pepper (capsicum annuum l. cv. california wonder) and the critical irrigation level to be applied in order to achieve a reasonable economic yield in water shortage conditions. in a controlled field experiment involving five different treatments, seasonal evapotranspiration for pepper fluctuated from 89 mm in the severe stress treatment (i0.00) to 1,...

Journal: Desert 2020
B. Motesharezadeh, E. Fathi F. Mirzaei, M. Parsinejad P. Ahmadi

Using plants for the remediation of soils contaminated with heavy metals is an economical, cheap, and effective strategy. The goal of this research was to study the effect of sewage sludge and drought stress on the remediation of cadmium in soil, root uptake by corn plant. This study was carried out on corn in factorial design experiment based on completely randomized design with three replicat...

Journal: :آب و خاک 0
عباس رضایی استخروییه سپهر خوش قدم مجتبی ابراهیمی سیریزی عیلرضا بادیه نشین

water shortage is the most important factors on crop production in the world. several methods of deficit irrigation are solutions for reduction of irrigation water. to understand the effects of conventional deficit irrigation and partial root zone drying treatments on yield, yield components and water use efficiency of sunflower (farrokh cultivar), one study was carried out. the research was co...

Journal: :بوم شناسی کشاورزی 0
الهه موسوی فر محمدعلی بهدانی مجید جامی الاحمدی محمد سعید حسینی بجد

oil has an important role in human food. an experiment was conducted in order to evaluate the response of spring genotypes of safflower to irrigation disruption in reproductive growth different stages, in a spilt plot arrangement based on randomized complete block design with four replications at research farm, faculty of agriculture, university of birjand during 2008. irrigation regimes (full ...

1999
Theib Oweis Mustafa Pala John Ryan

In the Mediterranean zone, efforts to optimize combinations of supplemental irrigation (SI ), improved varieties, nitrogen (N ) and sowing dates aim to improve and stabilize cereal yields and maintain quality, especially for durum wheat. Thus, a 4 year field study (1992/1993 to 1995/1996) on a deep clay soil in northern Syria assessed the impact of SI (rain-fed, 1/3, 2/3 and full SI ) combined ...

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