National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
A field experiment was conducted to evaluate the phosphatase activity and phosphorus use efficiency of cowpea genotypes to phosphorus levels and liquid based PSB during kharif 2019 under rainfed condition at Main Agricultural Research Station, University of Agricultural Sciences, Dharwad. Among the genotypes, the genotype DC-15 recorded significantly higher phosphatase activity, agronomic and recovery efficiency (45.22 μg paranitrophenol g -1 soil hr-1, 8.53 and 0.040 kg kg-1, respectively) than the genotype GC-3. It was on par with the genotype KBC-9. Among the phosphorus levels, the application of 75 kg P2O5 ha-1 + liquid PSB @ 4ml kg-1 seeds recorded significantly higher phosphatase activity (53.96 μg paranitrophenol g -1 soil hr-1) over other phosphorus levels. Whereas, higher recovery efficiency (0.041 kg kg-1) was recorded with the application of 25 kg P2O5 ha-1 + liquid PSB @ 4ml kg-1 over significantly higher over other phosphorus levels. Among the interactions, DC-15 with the application of 75 kg P2O5 ha-1 + liquid PSB @ 4ml kg-1 seeds recorded significantly higher phosphatase activity (59.67 μg paranitrophenol g -1 soil hr-1) over the control and other treatments. However, the 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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