نتایج جستجو برای: irrigation water salinity

تعداد نتایج: 592626  

Journal: Desert 2019
B. Biró F. Shekari, G. Végváric M. Ansari M.H. Mohammadi

Salinity stress is a brutal environmental stress which decreases the yield production of plants. Questions rise on which of the ionic stress or lack of water has deleterious effects on plants forage dry yield. Also, questions remain on whether the K+ reduction or Na+ accumulation is more important in forage dry yield reduction under salinity stress. The present experiment was conducted to answe...

2013
Sebastián Sauco Julio Gómez Francisco R. Barboza Diego Lercari Omar Defeo

Environmental gradients and wastewater discharges produce aggregated effects on marine populations, obscuring the detection of human impact. Classical assessment methods do not include environmental effects in toxicity tests designs, which could lead to incorrect conclusions. We proposed a modified Whole Effluent Toxicity test (mWET) that includes environmental gradients in addition to effluent...

جهاد اکبر, محمدرضا , فرزام‌نیا, مسعود , میران‌زاده, مختار ,

Iran is one of the countries that is located in world's arid and semi-arid regions and is constantly subjected to water shortage. One of the effective methods for reducing water consumption and increasing production in agricultural sector is greenhouse culture. By using proper irrigation management in greenhouse, we are able to utilize water, soil and fertilizer to produce high yield and qualit...

احمد نادری, , الیاس دهقان, ,

This study included two experiments conducted in 2000-2001 for surveying the effects of saline water irrigation on yield and yield components in corn varieties. Experiments were conducted in a silty-clay soil in Ahwaz Agricultural Research Center. First experiment was conducted as a split plots and randomized complete blocks design in three replications. Main plots included salinity levels 2, 4...

Journal: :journal of agricultural science and technology 2013
a. m. alomran i. i. louki a. a. aly m. e. nadeem

continuing agricultural expansion and urban development in saudi arabia, (located in an arid climate), together with an increased demands for more water supplies, calls for more efficient irrigation practices, and an increase in crop water productivity (cwp). throughout the present study, a deficit irrigation system was investigated for its impact on soil salinity, crop response factor (ky), cw...

2015
Lloyd L. Nackley Corey Barnes Lorence R. Oki

Recycled wastewater is a popular alternative water resource. Recycled water typically has higher salinity than potable water and therefore may not be an appropriate water source for landscapes planted with salt-intolerant plant species. Coast redwoods (Sequoia sempervirens) are an important agricultural, horticultural and ecological species assumed to be salt intolerant. However, no studies hav...

ژورنال: علوم آب و خاک 2019

Due to the growing population, crop production is one of the essential needs of the society. Since soil and water salinity can have a great impact on the crop yield loss; so, the appropriate irrigation method can be applied to reduce these effects. In this study, the system dynamics model was developed using VENSIM. The model simulated the effect of salinity and water stress on the crop yield, ...

Introduction: Salinity is a basic non-living environmental factor that reduces the yield worldwide. In arid and semi-arid regions, the salinity of water and soil limits crop production. Therefore, it is crucially important to assess the salinity tolerance of medicinal herbs if they are to be cultivated in saline areas. Materials and Methods: To investigate the effect of water salinity and so...

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...

M. Homaee, N.A. Karimian S. Saadat Y. Hosaini

Boron (B) is essential to growth at low concentrations and limits growth and yield when in excess. Little is known regarding plant response to excess B and salinity occurring simultaneously. In this study, two models of Leibig-Sprengel (LS) and Mitscherlich-Baule (MB), originally proposed to explain plant response to nutrients only, were modified to evaluate canola yield response to combined le...

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