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 |
Field experiment was conducted during kharif, 2016 on sandy loam soil to study the effect of phosphorus levels, biofertilizers (PSB) and organic manures (vermicompost) on acid and alkaline phosphatase enzyme activity and yield of green gram. The experiment was laid out in randomized block design with three replications having 12 treatment combinations viz. 3 levels of phosphorus (0, 75 and 100 % RDP) and its integration with PSB (2 kg ha-1) and vermicompost (5 t ha-1). Application of inorganic P alone decreased phosphotase enzyme activity from 0 to 100 % RDP level. Application of 100% RDP ha-1 resulted in a significantly lower acid and alkaline phosphatase activity both at flowering and at harvest of green gram. Application of vermicompost along with PSB seed inoculation (T4) recorded significantly highest and activity of acid and alkaline phosphatase was151.33 and 277.33 µg p-nitrophenol g-1 soil h-1 and the lowest activity of 88.00 and 232.00 µg p-nitrophenol g-1 soil h-1 of acid and alkaline phosphatase activity respectively were registered under 100 % RDP treatment (T9) in rhizosphere soil at flowering. Combined application of 100 % RDP along with PSB and vermicompost registered significantly highest grain and haulm yield in green gram.
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