Influence of boron on growth attributes, yield of black gram and available boron status in Typic chromustert

Abstract

A field experiment was carried out at farmer’s field in Kalligudi block, Madurai district to evaluate the growth characters, available boron status and yield of black gram to soil and foliar applied boron in boron deficient calcareous soil. The experiment was outlined with thirteen treatments in a randomized block design with three replications. The results of the study revealed that the STCR based N, P2O5 and K2O along with soil application of boron @ 1.5 kg ha-1 and foliar application of borax @ 0.25 per cent at critical growth stages of the crop registered the highest plant height, root dry weight, number root nodules and the grain yield. From the findings of this experiment it was finally concluded that there is a need for application of boron for improving the productivity of black gram in calcareous soil.