International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 4
First page : (476) Last page : (479)
Article doi: http://dx.doi.org/10.18782/2320-7051.2636
Incubation Study of Major Nutrients as Influenced by Different Slow Releasing Fertilizers in Coastal Karnataka
H. R. Bhanuprakash*, M. Hanumanthappa, P. Athaulla, K. V. Sudhir Kamath, and
S. M. Jayaprakash
College of Agriculture, Shivamogga, University of Agricultural and Horticultural Sciences,
Shivamogga, Karnataka-577225
*Corresponding Author E-mail: hr.bhanuprakash@gmail.com
Received: 26.02.2017 | Revised: 8.03.2017 | Accepted: 10.03.2017
ABSTRACT
The steady increase in population growth and food demand and the continuous reduction in per capita cultivated land and increase in fertilizer application worldwide. Fertilizers in general and nitrogenous fertilizers in particular have made a major contribution towards agricultural productivity. Recovery per cent of applied nitrogen is only less than thirty to forty per cent. The factors that contribute to the poor recovery of nitrogen by plants are as a result of rapid dissolution of the applied fertilizer materials and release of more mineral nitrogen than what is used by the plant or conserved by the soil in the available forms. Urea is the least efficient among the nitrogen sources. High loss and low nitrogen use efficiency demand and the factors responsible for such wastage of expensive input has to be studied. The dynamics of release of N from these fertilizers is likely to be studied. The dynamics of release of N from these fertilizers is likely to be influenced by soil characteristics as well as moisture condition. Hence, an attempt was made to know the releasing pattern of coated urea fertilizers. An incubation experiment was conducted with neem oil coated urea, mud coated urea, cashew nut shell liquid coated urea and pongamia oil coated urea. Thus, use of neem oil coated urea prolonged the nitrogen availability for the crop growth thereby minimized the losses of nitrogen and improved the nitrogen use efficiency.
Key words:neem oil coated urea, mud coated urea, cashew nut shell liquid coated urea, pongamia oil coated urea and nitrogen use efficiency.
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Bhanuprakash, H.R., Hanumanthappa, M., Athaulla, P., Kamath, K.V.S. and Jayaprakash, S.M., Incubation Study of Major Nutrients as Influenced by Different Slow Releasing Fertilizers in Coastal Karnataka , Int. J. Pure App. Biosci.5(4): 476-479 (2017). doi: http://dx.doi.org/10.18782/2320-7051.2636
