EFFECT OF DIFFERENT DOSAGES OF NURSERY FERTILIZERS IN THE CONTROL OF ROOT ROT OF OKRA AND MUNG BEAN

摘要

The potential impact of different dosages of widely used locally available nursery fertilizers viz., flourish, frutan, NPK, urea and fishmeal were used to examine their effect in the suppression of root infecting fungi viz., Macrophomina phaseolina, Rhizoctonia solani and Fusarium spp., on okra and mung bean plants. Nursery fertilizers were applied in soil @ 0.001, 0.01 and 0.1% w/w whereas fish meal @ 0.1%, 0.3% and 0.5% v/w.Highest shoot length and shoot weight of okra and mung bean were observed when fish meal @ 0.5% v/w and NPK @ 0.1% w/w were used. Infection of Fusarium spp., significantly reduced in okra and mung bean plants where soil was treated with urea @0.01% and 0.001%. Frutan and fishmeal @ 0.1% showed inhibition of Rhizoctonia solani.Frutan at all doses and urea @0.001 and 0.1% suppressed M. phaseolina infection on mung bean whereas flourish @0.1% and urea @ 0.1% significantly-reduced M. phaseolina infection on okra plants. The shoot length, root length, shoot weight and root weightwere significantly increased in both okra and mung bean plants. Maximum plant height was achieved where fish meal @ 0.5% and NPK @ 0.1% were used.