International Journal of Ecology and Environmental Sciences

International Journal of Ecology and Environmental Sciences


International Journal of Ecology and Environmental Sciences
International Journal of Ecology and Environmental Sciences
2020, Vol. 2, Issue 4
Nutrient uptake and phosphorus use efficiency of cowpea as influenced by genotypes, phosphorus levels and liquid based PSB

MSR Kalyani, Ganajaxi Math*, Gurupad Balol

A study was conducted to evaluate the response of cowpea genotypes (DC-15, GC-3 and KBC-9) to phosphorus levels (0, 25, 50 and 75 kg P2O5 ha-1) and liquid based PSB with respect to nutrient uptake and phosphorus use efficiency at MARS, University of Agricultural Sciences, Dharwad during kharif 2019 under rainfed condition. The results indicated that among the genotypes, the genotype DC-15 recorded significantly higher nitrogen (74.35 kg ha-1), phosphorus (11.00 kg ha-1), potassium uptake (48.57 kg ha-1) and recovery efficiency (0.040 kg kg-1) over other genotypes. Among the phosphorus levels, application of 75 kg P2O5 ha-1 + liquid PSB @ 4ml kg-1 recorded significantly higher nitrogen (71.55 kg ha-1), phosphorus (11.32 kg ha-1) and potassium (46.33 kg ha-1) uptake over other levels. Whereas, application of 25 kg P2O5 ha-1 + liquid PSB @ 4ml kg-1 seeds recorded significantly higher recovery efficiency (0.041 kg kg-1) over other levels. Among the interactions, the genotype DC-15 with the application of 75 kg P2O5 ha-1+ liquid PSB @ 4ml kg-1 seeds recorded significantly higher nitrogen (83.60 kg ha-1), phosphorus (12.02 kg ha-1) and potassium (49.66 kg ha-1) uptake over the control and other treatments. Further, genotype DC-15 with the application of 25 kg P2O5 ha-1 + liquid PSB @ 4ml kg-1 seeds recorded significantly higher recovery efficiency (0.057 kg kg-1) over the control and other treatments.
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How to cite this article:
MSR Kalyani, Ganajaxi Math*, Gurupad Balol. Nutrient uptake and phosphorus use efficiency of cowpea as influenced by genotypes, phosphorus levels and liquid based PSB. International Journal of Ecology and Environmental Sciences. 2020; 2(4): 637-639.