Tag: impression

Saline agriculture impression in soils and its management strategies

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article image AGRICULTURAL productivity is severely affected by soil salinity because salt levels are harmful to plant growth. Estimates show that at present about 20 per cent of the irrigated land in the world is affected by salinity. The loss of cultivable land due to salinity is likely to increase over the next 20 years. At present, there are nearly 954 million hectares of saline soils on the earth’s surface. All these salt affected soils are distributed throughout the world. The total…Read More

Saline agriculture impression in soils and its management strategies

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article image Causes of salt accumulation The location of Pakistan is in arid and semi-arid climatic zones. The average summer temperature is about 45°C and the minimum winter temperature remains between 2°C to 5°C. The annual rainfall varies between 100 mm to 700 mm throughout the country. The evaporation rate is generally very high and exceeds that of precipitation. Thus, the insufficient rainfall followed by high evaporative demand and shallow ground water depth, enhances the movement of salts…Read More