| Md. Wasim Aktar* | | | | about 0.5 to 3.5% consists of Na, P, K and S and the |
| Pesticide Residue Laboratory, Department of | | | | remainder of the ash is composed of trace elements. |
| Agricultural Chemicals, Bidhan Chandra Krishi | | | | In fact, Fly Ash consists of practically all the elements |
| Viswavidyalaya, Mohanpur-741252, Nadia, West | | | | present in soil except organic carbon and nitrogen |
| Bengal, India | | | | (Table 1). Thus it was found that this material could |
| INTRODUCTION | | | | be used as an additive / amendment material in |
| Fly ash has a potential in agriculture and related | | | | agriculture applications. In view of the above, some |
| applications. Physically Fly Ash occurs as very fine | | | | agencies/ individuals/ institutes at dispersed locations |
| particles, having an average diameter of < 10 m m, | | | | conducted some preliminary studies on the effect |
| low to medium bulk density, high surface area and | | | | and feasibility of fly ash as an input material in |
| very light texture. Chemically the composition of Fly | | | | agricultural applications. Some amount of experience |
| Ash varies depending on the quality of coal used and | | | | was been gained in the in the country and abroad |
| the operating conditions of the Thermal Power | | | | regarding the effect of fly ash utilisation in agriculture |
| Stations. Approximately on an average 95 to 99% of | | | | & related applications. |
| Fly Ash consists of oxides of Si, Al, Fe & Ca and | | | | . |