International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 4
First page : (582) Last page : (585)
Article doi: http://dx.doi.org/10.18782/2320-7051.5335

Biofertilizer Consortia and Foliar Nutrition Effect on Rainfed Bt Cotton Soils Enzyme Activity

Laxman T.*, Ramprakash T., Avil Kumar K. and Srinivas A.
Department of Agronomy, College of Agriculture, PJTSAU, Rajendranagar, Hyderabad-500 030
*Corresponding Author E-mail: thejavathlaxman123@gmail.com
Received: 27.07.2017  |  Revised: 8.08.2017   |  Accepted: 9.08.2017  

 ABSTRACT

A filed experiment was conducted during rainy season of 2014 at college farm, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad to study the  effect of biofertilizer consortia of microbes applied to soil and foliar application of macro nutrients on enzymatic activity at 60, 90 and 120 DAS. Enzymatic activity was highest during the flowering period (60DAS) and thereafter the activity decreased with the age of the crop and lowest activity was recorded at final harvest. Consortia of microbes applied to soil + foliar application of 18:18:18 @ 1.5 per cent recorded significantly higher enzymatic activity at 60 DAS  viz., dehydrogenase (11.3 µg TPF g-1 day-1), acid phosphatase (142.2 µg PNP released g-1 h-1), alkaline phosphatase (101.3 µg PNP released g-1 h-1) and urease (95.3 µg NH4+ g-1 2 h-1) over other treatments. Significantly higher seed cotton yield also recorded with consortia + foliar application of 18:18:18 @ 1.5 per cent (1670 kg ha-1) over other treatments and control (1004 kg ha-1).

Key words: Consortia, Biofertilizers, foliar nutrition, Urease, Dehydrogenase, Phosphatase

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Laxman, T., Ramprakash, T., Kumar, A.K. and Srinivas, A., Biofertilizer Consortia and Foliar Nutrition Effect on Rainfed Bt Cotton Soils Enzyme Activity, Int. J. Pure App. Biosci.5(4): 582-585 (2017). doi: http://dx.doi.org/10.18782/2320-7051.5335