Potentials and Prospects of Fly Ash Utilization in Enhancing Vegetable Productivity

Raj B. Yadava, D. K. Singh, S.N. S. Chaurasia, R. N. Prasad, Prem S. Pathak


Fly ash, owing to its physico-chemicalproperties, has been reported to increase soil-water holding capacity,hydraulic conductivity and porosity and decrease bulk density, modulus ofrupture and surface encrustation. Use of fly ash alone or in combination withfarmyard manure, sewage sludge, water hyacinth, lime, gypsum and microbialcultures has been found to improve growth, yield and nutrients uptake ofvarious crops including vegetables. Studies on some of the vegetable crops likecowpea, brinjal, potato, pea, cabbage, tomato, onion and bottle gourd indicateyield enhancement due to fly ash application from 11 to 50 percent. Fly ash hasalso been found to control several insects, pests and diseases in differentvegetable crops. Thus, it has tremendous potential for its use as soilameliorant, source of secondary and micronutrients, carrier of bio-inoculantsand pesticides and as an insect-pest and disease control agent in differentvegetable production systems including organic farming.


Fly Ash, Vegetable Crops, Soil Properties, Crop Yield


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