Question

What is salinity status of problems soils in india?

Answer 1

Effects of Salinity on Plant Growth. Salinity becomes a problem when enough salts accumulate in the root zone to negatively affect plant growth. ... Although the water is not held tighter to the soil in saline environments, the presence of salt in the water causes plants to exert more energy extracting water from the soil.

Answer 2

States Area under saline soil (million hectare) Uttar Pradesh 1.28 million hectare Gujarat 1.2 million hectare West Bengal 0.84 million hectare Rajasthan 0.720 million hectare Punjab 0.68 million hectare Maharashtra 0.528 million hectare Haryana 0.520 million hectare Karnatka 0.400 million hectare Orissa 0.400 million hectare Madhya Pradesh 0.20 million hectare

. States Area under saline soil (million hectare) Andhra Pradesh 0.024 million hectare Delhi 0.016 million hectare Kerala 0.016 million hectare Bihar 0.004 million hectare Tamil Nadu 0.872 million hectare TOTAL 7 million hectare

Increase soil salinity levels can greatly effect plant growth and production.  Excess soil salinity causes poor and spotty stands of crops, uneven and stunted growth and poor yields, the extent depending on the degree of salinity.  The primary effects of excess salinity is that it renders less water available to plants although some is still present in the root zone.

Salinity in plants can have a huge effect on the rate of photosynthesis.  The effects of salt in plants is similar to drought in plants.  Because the salt absorbs the water, in a high enough quantity the salt can dry out plants which makes photosynthesis slow down at a very high rate or even make photosynthesis in plants cease all together.  If too much salt gets into the plant then the stomata, this allows carbon dioxide into the plant, may close up which will not allow and carbon dioxide in or oxygen out.

Presence of salt-tolerant native plants, such as Red Sapphire Spraying of the GYPSUM to decrease the salinity of soil