Abstract
In the present study, the effect of different fly ash levels in soil were observed on plant growth and yield of underground stem crops viz. potato, onion and garlic. Plant growth and yield were increased significantly in 10 and 20% fly ash amended soils. However, in higher levels of fly ash (40, 60, 80 and 100%), plant growth and yield were reduced significantly. The suppressions in plant growth and yield were maximum in 80% and 100% fly ash levels. In general, when fly ash levels increased gradually, all the growth and yield parameters declined gradually. In the present study, the ideal level of 20% fly ash was found to be for the better plant growth and yield of potato, onion and garlic crops.
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