نتایج جستجو برای: salinity of water

تعداد نتایج: 21220079  

خداکرم بارگاهی, , سیدعلی‌اکبر موسوی, ,

Limitation of suitable water resources is the most important problem of agriculture in Iran. Considering the condition of shallow and saline groundwater in many parts of Iran, and relative resistance of safflower to salinity, it is necessary to study the contribution of groundwater to water consumption of safflower. In this research, the effects of different water table depths and salinity of g...

Journal: :ecopersia 2013
davoud akhzari farhad ghasemi aghbash

vetiver grass is known to survive under diverse soil and water conditions. in order to test its potential of salinity and aridity tolerance ability, the effect of salinity and aridity stress on the growth of the vetiveria zizanioides was studied by growing plants in arid soils that receiving salinity stress. the experiment was conducted in a greenhouse, arrangement in a completely randomized de...

Journal: :علوم گیاهان زراعی ایران 0
جعفر نباتی دانشجوی دکتری، دانشکدۀ کشاورزی دانشگاه فردوسی مشهد محمد کافی استاد، دانشکدۀ کشاورزی دانشگاه فردوسی مشهد احمد نظامی دانشیار، دانشکدۀ کشاورزی دانشگاه فردوسی مشهد علی معصومی استادیار، دانشگاه پیام نور خراسان رضوی محمد زارع مهرجردی دانشجوی دکتری، دانشکدۀ کشاورزی دانشگاه فردوسی مشهد

soil and water salinity are the main agricultural problems in arid and semi arid areas in the world and iran. in order to investigate salinity tolerance of kochia, two experiments were conducted in a completely randomized design with four replications, seven levels of salinity (0, 10, 20, 30, 40, 50 and 60 ds m-1) and two growth stages (planting and early seedling) with gradually salinity appli...

2008
Hisamichi Nobuoka Nobuo Mimura

Brackish water lake is home of peculiar organisms, as its salinity is middle of those of sea and fresh water. Its salinity changes sensitively with sea level, river flow rate and lake topography. Hinuma Lake is one of brackish water lakes in Japan and connects with the Pacific Ocean through a tributary and a major river. Therefore the inflow process of salt water to the lake is very complex. Th...

Journal: :پژوهش های تولید گیاهی 0
پیمان افراسیاب دانشیار بخش مهندسی آب، دانشکده آب و خاک، دانشگاه زابل معصومه دلبری دانشیار بخش مهندسی آب، دانشکده آب و خاک، دانشگاه زابل رسول اسدی دانشجوی دکتری بخش مهندسی آب، دانشکده آب و خاک، دانشگاه زابل احسان محمدی دانشجوی دکتری بخش مهندسی آب، دانشکده آب و خاک، دانشگاه زابل

abstract:background and objectives:in arid and semi-arid regions, salinity is a serious and chronic problem for agriculture. due to the improved methods of irrigation and mechanization this methods to increase water use efficiency and enhance the uniformity of water distribution in the field, is very important. main area of farming cotton in iran is about 150000 ha, which in kerman province mos...

Journal: :desert 0

abstract seed germination is an important phase of plant development during which soil water availability is crucial. salinity can affect seed germination in two ways: 1) change of osmotic potential of available water, 2) toxicity effects. in this experiment, interactive effects of salinity and water deficit on germination criteria of two species of a, littoralis and a. logopoides were studied ...

Journal: :علوم باغبانی 0
معصومه عباسی عبدالرسول ذاکرین مختار حیدری

abstract mango is one of the most important tropical fruits in iran and salinity is an important problem to mango production in ‘hormozgan’ province and other mango growing areas in iran. at present experiment the effects of saline irrigation water of different sodium chloride concentration on vegetative growth and ion content of mango was evaluated. treatments comprised two type of cultivars (...

2016
Larry P. Atkinson Chester E. Grosch

Interannual salinity variations in North Atlantic Subtropical Mode Water (STMW) are well known although the cause is less well understood. Attempts to model local salinity variation with local evaporation and precipitation have not been successful and some authors invoke advection of low salinity water as the cause. Examination of the STMW and North American river runoff data suggests that runo...

ژورنال: علوم آب و خاک 2006
خداکرم بارگاهی, , سیدعلی‌اکبر موسوی, ,

Limitation of suitable water resources is the most important problem of agriculture in Iran. Considering the condition of shallow and saline groundwater in many parts of Iran, and relative resistance of safflower to salinity, it is necessary to study the contribution of groundwater to water consumption of safflower. In this research, the effects of different water table depths and salinity of g...

Journal: :تحقیقات آب و خاک ایران 0
منا گلابی دکتری، دانشگاه شهید چمران اهواز عبدعلی ناصری دانشیار، دانشگاه شهید چمران اهواز

the present study was conducted with the objective of investigating the feasibility of using drainage water mixed with water to irrigate sugarcane (saccharum officinarum) in khuzestan province. the investigation was conducted in research center of sugarcane in farming seasons of years 2008-2009. four salinity levels of irrigation water were selected (s1, s2, s3 and s4 respectively with salinite...

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