Seed treatment of green gram with molybdenum and cobalt : effect on nodulation, biomass production and N uptake in an acid soil
2000
Pattanayak, S.K. | Dash, D. | Jena, M.K. | Nayak, R.K. (College of Agriculture, Bhubaneswar (India). Dept. of Agricultural Chemistry, Soil Science and Biochemistry)
A field experiment on seed treatment of green gram with micronutrients (0.16 mg Mo and 0.008 mg Co per gram of seed as sodium molybdate and coba&de-;-resPectively) and Rhizobium culture showed significant increase in nodule number, nodule weight, N concentration, leghaemoglobin content, grain yield, N uptake and total biomass production over uninoculated treatment in a moderately acid soil. The grain yield and total biomass increased by 74.5 and 97.5 per cent, respectively over a control yield of3.4 and 7.9 q ha-l. The total N gain through micronutrient and inoculation treatment was 45.4 kg ha-l- and additional N uptake was 24 kg ha-l. The APR and AKR were 14.4 and 38.2 per cent which resulted in 15-3 and 8.3 kg grain per kg of applied p and K, respectively.
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