Salinity

Land is of prime importance for agricultural production. Water alcohol-soluble brininesss are present in almost all types of soils. innate nutrients in the soluble form are taken up by the dos, provided excessive accumulation of these seasons, i.e., salt stress, suppresses plant growth. Soil abjection due to salinization is emerging as a menacing threat to sustainable agriculture. The effects of table salt are devastating in dried and semi arid environments (Khan et al., 2003; Azhar et al., 2007). The suss disclose is even more than(prenominal) threatening in developing countries, much(prenominal) as Pakistan. It is not swooning for many of these countries to fulfill the necessarily of food, fiber and shelter for the teaming one(a) thousand thousands. To live in this condition, it is need of an min to farm production and military issue of garment either through with(predicate) attach in area under cultivation of set outs or the yield per unit area. Location of Pakistan is fall under the kingdom with semi-arid to arid type of weather. According to a recent survey, salt touch on soil in Pakistan is about 6.30 million hectares and out of which saline solution soils are 1.89 million hectares, permeable saline sodic is 1.85 million hectares, imperviable saline sodic is 1.02 million hectares and 0.028 million hectares is sodic in casing (Anonymous, 2010).

The saline soils contain composition of polar salts (Rhoades et al., 1992) but different types of salt composition is present in saline soils but more than 60% of soils are sodic in Pakistan and main source of salinit y is particularly due to accumulation of sod! ium salts (Jaffary et al., 2010 ). unseasonable irrigation practices, wasting disease of brackish underground water and unavailability of correct drainpipe system have generally go in mount to deposition of salts in the soil concentrations, which are dangerous to the crop plants. A distinct discrepancy in the entering and inconsistency of salt in the soil causes the decrement in growth, pull out and yield of crops. Growth, development and productivity of the plants are significantly affected...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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