PHOSPHOBACTERIAL INOCULATION AND DIFFERENT DOSES OF P FERTILIZER FOR INCREASING YIELD AND YIELD COMPONENTS OF MUNG BEAN (VIGNA RADIATA L.)

Abstract

Studies were conducted to assess the significance of phosphobacterial inoculation in mungbean
variety AEM-96. Different levels of phosphorus fertilizer, phosphobacterial inoculum alone and
combination of phosphate fertilizer with phosphobacteria were used. Grain yield and yield
components viz., biological yield, plant height, pods per plant, 100 grain weight, days to flowering
and days to maturity were studied. The data on microbiological counts were recorded in the soil
after one week of sowing and after harvesting of crop at the depth of 0-15 and 15-30 cm. A field
experiment was laid out in RCBD with five treatments in four replications at experimental farm of
Nuclear Institute of Agriculture (NIA) Tando Jam, Sindh. The results showed that the biological
yield and grain yield were significantly increased at T2 (75 kg P h-1) followed by T3 (37.5 Kg P h-1)
and T4 (phosphor-bacteria 25 ml Kg-1 of seed). Non significant difference between T3 and T4 were
observed. Same trend was observed for 100-grain weight, plant height and number of pods per plant.
Significant increase in phosphobacteria was observed in T4 as compared to other treatments after
sowing and after harvesting of crop. It is obvious from the results that the phosphorbaterial
inoculation alone could be used to get a reasonable yield from mungbean and could be more
economical for the growers.