Effect of inorganic and bio-fertilizers on productivity and nutrients uptake in cowpea [Vigna Unguiculata (L.) Walp]
2012
Khandelwal, Rohit | Choudhary, S.K. | Khangarot, S.S. | Jat, M.K. | Singh, P.
A field experiment was conducted during kharif, 2006 at Jobner (Rajasthan). The soil was loamy sand, having 8.1 pH, 1.20 dSm-1 electrical conductivity, 0.13; organic carbon, 130.2 kg ha−1 available nitrogen, 16.5 ha-1 available phosphorus and 151.9 kg ha-1 available potassium. The application of 75; of recommended dose of fertilizer i.e. 15 kg N and 30 kg P2O5 ha-1 along with seed inoculation by Rhizobium + PSB proved significantly superior over rest of treatment combinations and provided significantly higher pods per plant (8.23), seeds per pod (7.83), seed yield (8.85qha-1), straw yield (19.20q ha-1), nitrogen uptake (68.78kg ha-1), phosphorus uptake (8.85kg ha-1) and protein content (25.56;) and increase in these characters was by 27.99, 27.94, 20.08, 22.06, 41.99, 42.37 and 16.71; respectively over the control. Similarly, in seed inoculation combined i.e. Rhizobium + PSB treatment provided significantly higher pods per plant (8.52), seeds per pod (8.11), seed yield (9.20q ha-1), straw yield (20.12q ha-1), nitrogen uptake (75.29 kg ha-1), phosphorus uptake (9.32 kg/ha) and protein content (26.81 ;) over rest of the treatments. The increase in their parameters was to the tune of 28.70, 28.93, 24.32, 23.51, 59.78, 37.46 and 32.85; respectively over control.
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