نتایج جستجو برای: the rain

تعداد نتایج: 16055891  

Journal: :زراعت دیم ایران 0
علیرضا توکلی مرکز تحقیقات کشاورزی و منابع طبیعی استان سمنان ( شاهرود ) عبدالمجید لیاقت دانشگاه تهران امین علیزاده دانشگاه فردوسی مشهد

low cereal and legumes yields and their rwp index are mainly due to poor distribution of rainfall and poor agronomic management practices. rainfed barley yield and rain water productivity (rwp, defined as rainfed grain yield divided by the total crop season annual rainfall water) in the dry farming are considerable by topography and latitude. yield data, rainfall, altitude and latitude of 182 p...

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If other factors are held constant erosion, soil loss rate is directly proportional to the amount of rain erosion. Various measures have been proposed so far in the world, depending on geographic location, scale, local conditions and the type of measurement are different. A review of studies conducted worldwide and the limited rain gauge equipped, modified Fournier index is calculated based on ...

Splash erosion is recognized as the first stage in the process of erosion that results in bombardment of the soil's surface with rain drops. Two basic processes in soil erosion are the dispersement of soil particles by rain drops and the changes caused to the soil's structure, which are then moved by runoff. In this research,the effect of various polyacrylamide (PAM)values (0, 0.2, 0.4 and 0.6 ...

اکبرپور, ابوالفضل, خاشعی سیوکی, عباس, فروغی فر, حامد, کشاورز, اکبر,

Surface water that is the result of rainfall-runoff responses in a basin is a potential water source that if it is managed properly, can be useful to demand secure. Rain Water Harvestings an suitable option for monopoly and store runoff for future use, especially during the period that has restricted access to water. In this study has determined susceptible places for Rain Water Harvesting usin...

In order to study tolerance of durum wheat (Triticum durum) lines to drought stress and also evaluating stress tolerance indices, an experiment based on randomized complete block design with four replications was conducted under two rain fed and supplementary irrigation conditions at Gachsaran station during 2011-2012 cropping season using 20 durum wheat lines. Results of combined analysis of v...

Journal: :دراسات الادب المعاصر 0
علی معدلی محبوبة محمدزاده شیرازی

rain is one of the manifestations of the divine blessing for servants which plays a very important role in the life of this human being. man has paid special attention to rain since he stepped on earth. many poets have described rain, used it in their similes and composed poetry out of it. they have used rain as a symbol together with other symbols such as woman, praise, battleground and so man...

Journal: :international journal of agricultural science, research and technology in extension and education systems 2014
jafer mume aman kemal

rain-water-harvesting is one of the means by which agricultural production can be increased to meet the growing food demands in all regions. the study indentified the factor affecting rain-water-harvesting technology adoption for irrigation and farmers practice in water harvesting against drought in lowland woreda, eastern hararghe, oromia region. both primary and secondary data were collected ...

Journal: :ادب عربی 0
عدنان طهماسبی استادیار دانشکدة ادبیات دانشگاه تهران ناصر زارع استادیار دانشگاه خلیج فارس

this paper examines paradox in the symbols of the poem unsh?dat al-matar (‘song of rain’), composed by sh?kir al-sayy?b. it also investigates how meaning is developed in these symbols. in the symbols in this poetry, paradoxical themes like happiness and grief, rain and drought, and life and death emerge. the onomatopoeia ‘rain’, which forms the central image of this poetry, has the same paradox...

ژورنال: علوم آب و خاک 2009
سپاسخواه, علیرضا, منفرد, مرضیه, مهبد, مهدی,

Optimum management of water use in agriculture results in higher cultivated areas or enhances the share of water for municipal and industrial uses leading to economic development of a country. One of the effective methods in optimum water management is irrigation scheduling by using models which simulate water content in soils. In this study, a previously prepared model for irrigation water sch...

A, Gandomkar

Interpolation, the generalization of point data to scatter data, and combining maps are three cases of important applications of GIS. In this study, it has been tried to make the estimation of rain erosion capacity (Fournier Method) more real through using GIS capability in interpolation and the generalization of point data to scatter data. In Fournier method, the rain erosion capacity is calcu...

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