Effect of FYM, bio fertilizers and inorganic manures on growth and yield of maize under irrigated conditions

Abstract

The results of the present study showed that amongst different levels of organic manure and inorganic fertilizers 30t farm yard manure (FYM) and F3 (150:100:50 kg N-P2O5 and K2O /ha), respectively realized significantly higher grain yield of maize. There was no significant effect of bio-fertilizers on the grain yield alone. The treatment combination of 010F3BF1 (10t FYM with 150:100:50 kg N-P2O5 and K2O/ha along with Azospirillum and PSB) gave the highest benefit, cost ratio of Rs.2.83 and net return of Rs.46,194.47/ha. In view of this it is recommended that under low and medium fertile soils, inorganic fertilizer combination of N-P2O5 and K2O at the rate of 150:100:50 kg/ha, respectively along with application of 10 t FYM/ha with bio-fertilizer Azospirillum with PSB be used for obtaining most profitable grain yield of maize under irrigated conditions of the valley. Further, for maximization of the grain yield 30t FYM/ha instead of 10t FYM/ha may be applied.