نتایج جستجو برای: saline soils
تعداد نتایج: 99140 فیلتر نتایج به سال:
Excessive salt rate can adversely influence the physical, chemical, and biological properties of soils, mainly in arid and semi-arid world regions. Therefore, salt-affected soils must be reclaimed to maintain satisfactory fertility levels for increasing food production. Different approaches have been suggested to solve these issues. This short review focuses on selected studies that have identi...
The article discusses the impact of application bentonite sludge from Logan deposit in different methods, terms and standards on nutrients soil conditions meadow saline, moderately saline soils Central Fergana.As a result mud under autumn plowing at rate 1.5-3.0 t / ha per year, three years driving layer humus 0.003-0.007%, total nitrogen 0.002-0.006%, phosphorus 0.005-0.015%, potassium 0.012-0...
This study was carried out to determine changes in hydraulic conductivity of a saline sodic soil subjected different wetting-drying cycles and treated wastewater after stabilized sludge sewage gypsum application. In factorial experimental design, the conducted with three replication by using 3 treatment doses (50, 100 150 t ha-1), (0, 7 14 days) 2 water types (fresh wastewater). The values satu...
Salinization is the main characteristic of soils in arid and semi-arid regions which reduce the agricultural potential ofirrigated lands. Therefore, soil reclamation as well as determination of the leaching requirement for salt control is veryimportant for better plant growth. In this study, the effects of leaching on saline soils of Sistan region, southeast of Iranwere examined using unsaturat...
Potassium (K) and sodium (Na) coexist on the soil exchange complex and soil solution. Both cations may exert antagonistic or synergistic effects on mutual absorption and translocation within plants, particularly under saline and saline-sodic field conditions. This study investigated the role of K in alleviating the adverse effects of Na on wheat [Triticum aestivum (L), Iquilab-91] grown at two ...
The Songnen Plain of the Northeast China is one of the three largest soda saline-alkali regions worldwide. To better understand soil alkalinization and salinization in this important agricultural region, it is vital to explore the distribution and variation of soil alkalinity and salinity in space and time. This study examined soil properties and identified the variables to extract soil alkalin...
almost half of agricultural lands in iran are saline and it is one of the most important constraints in cultivated lands. wheat is the most important crop in saline lands in rotation of golestan province. since saline soils amelioration is so expensive, achievement of genotypes with tolerant and high yield potential is essential. 22 genotypes of selective wheat of recent experiments with three ...
Soil alkalinisation generally constitutes a major threat to irrigated agriculture in the semiarid regions of West Africa. The improvement of sodic soils is generally difficult and expensive. However, a recent study in the Niger valley in NIGER, reveals that a natural dealkalinisation is possible under natural conditions in a semi-arid climate. Transformation of non-saline sodic soil into brown ...
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