نتایج جستجو برای: water requirement

تعداد نتایج: 712466  

Journal: :Bangladesh Journal of Scientific Research 2016

زیبایی, منصور , شعبانی, محمد کاظم , هنر, تورج,

Limitations of rainfall and surface water resources farmers have to use both surface and subsurface resources for growing different crops. In this study optimal management of irrigation water allocation and cropping pattern utilizing conjunctive use of surface and subsurface water resources is studied. Also the effect of reducing water consumption in different growth stages with different irrig...

Abstract Lack of stored soil moisture is an essential factor in intensification of the problems of arid and semi-arid areas in Kohgiloyeh va Boyerahmad Province. In these areas, limited surface water and groundwater have rendered vast areas of the region’s fertile lands useless. Despite these problems, appropriate conditions can be provided to plant resistant and adapted species such as olive...

Journal: :علوم باغبانی ایران 0
مجتبی دلشاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران، استادیار مستانه احرار پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کارشناسی ارشد مصباح بابالار پردیس کشاورزی و منابع طبیعی دانشگاه تهران، استاد

water and nutrient absorption by plants is one of the most conspicuous factors which seriously affect plant productivity. improving physical properties of soilless media and their water retaining capacity can improve plant's nutrient absorption, growth and subsequent yield. in this study, we tried to improve plant nutrient absorption through incorporation of hydrogel into growth media and ...

بنایان اول, محمد, تهرانی فر, علی, دولتخواهی, علی, شور, محمود, علیزاده, امین,

Silicon (Si) is a beneficial element for on plant growth and development that plays an important role in plant resistance to environmental stresses such as salinity and drought. The present research was conducted to study the effect of Si and water deficit on biochemical, physio-morphological and qualitative traits of cut rose cv. Club-Nika under greenhouse conditions. The factorial experimen...

اصغری سراسکانرود, صیاد, زینالی, بتول, فریدپور, مجتبی,

The studied area in this study is Marand plain with an area equivalent to 517.42 square kilometers in the North West of East Azerbaijan province. In this research, consecutive periods of meteorological and hydrogeological droughts were detected by SWI and SPI drought index at 6 periods (6, 9, 12, 18, 24 and 48 months). For this purpose was used monthly precipitation mean of 7 rain-gauge station...

2007
Jonathan Chenoweth

There is no common understanding of the minimum per capita fresh water requirement for human health and economic and social development. Existing estimates vary between 20 and 4,654 l/c/d, however, these estimates are methodologically problematic as they consider only human consumptive and hygiene needs, or they consider economic needs but not the effects of trade. Reconsidering the components ...

Journal: :پژوهش های زراعی ایران 0
ویدا ورناصری قند علی پرویز رضوانی مقدم سرور خرم دل

introduction canary seed (phalaris canariensis l.) is a forage plant from poaceae family. this plant is drought tolerant. canary seed is originally a native to mediterranean region, which can be grown commercially in several parts of the word, especially in semi-arid conditions. increasing growth of population and lack of ability of pastures to satisfy the food requirement of animal has led to ...

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