RESPONSE OF DIFFERENT DOSES OF PHOSPHATE FERTILIZER AND PHOSPHATE SOLUBILIZING_BACTERIA AND MYCORRHIZA IN MUNGBEAN (VIGNA RADIATA L.

Abstract

A field experiment was conducted in randomized complete block design (RCBD) with seven treatments in four
replications at Nuclear Institute of Agriculture (NIA), Tando Jam. Five plants were selected from middle rows of
the plot for yield parameters. Yield and yield components were recorded such as plant height (cm) number of
pods/plant, single plant biomass weight (g), number of branches/plant, number of panicles/plant, single plant grain
yield (g) biological yield kg/ha, grain yield (kg/ha), days to flowering, days to maturity of the crop, and 100- grain weight (g). Bacterial enumeration after sowing of one week and after harvesting of the crop were recorded. The results revealed that the all yield and yield components were highest in T2 (80 kg P/ha), whereas, the control
was the lowest. In treatment Bacillus megatherium and 40 kg P/ha were identical with each other. T5 (Bacillus
megatherium+40 kg P/ha), T6 (Mycorrhiza) and T7 (Mycorrhiza + 40 kg P/ha) were similar with each other but
lower than T2, T3, T4 and higher than control. Biological yield and grain yield were highest in T2 (2541 kg/ha
and 883 kg/ha). Same trend was found for bacterial enumeration after sowing of one week the crop and after
harvesting of the crop at the depth of 0-15 and 15-30 cm in one gram of soil. It was observed that the addition of
Bacillus megatherium increased the yield and other yield associated traits of mungbean. The results showed that
the P solubilizing bacterial inocula alone may be used for obtaining reasonable yield in mungbean.