FLY ASH IS AN ALTERNATIVE WAY TO IMPROVE SOIL FERTILITY AND ITS PRODUCTIVITY

Abstract

Abstract:- Fly Ash (FA)-is generated as a byproduct of coal combustion. It is a coal combustion residue of thermal power plants .It has been regarded as a problematic solid waste all over the world. Disposal of high amount of fly-ash from thermal power plants absorbs huge amount of water, energy and land area by ash ponds. Therefore, fly-ash management would remain a great concern of the century. However, several studies proposed that FA can be used as a soil supplement that may improve physical, chemical and biological properties of the degraded soils and is a source of micro-and macro-nutrients. Practical value of FA to improve soil fertility has established by pot experiment with monocot and dicot crops. Fly-ash has great potential to improve soil fertility due to its potential to improve and modify soil health and crop health. The high concentration of elements (K, Na, Zn, Ca, Mg and Fe) in fly-ash increases the yield of many monocot and dicot crops. But the use of fly-ash in agriculture is limited compare to other sector. Keyword: fly ash, monocot, dicot, soil fertility.