Use of 15N in Nitrification Inhibitor Studies with Special Reference to Indigenous Materials

Sahrawat, K L (1988) Use of 15N in Nitrification Inhibitor Studies with Special Reference to Indigenous Materials. Journal of Nuclear Agriculture and Biology, 17. pp. 238-242. ISSN 0379-5489

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Non-edible oil seed cakes and their constituents have been advantageously used for increasing the efficiency of fertilizer nitrwen (Nj for cro8 production. The beneficial effccts of these materials have been attributed to retar a~ion of nilrification, which lessen the loss of N associated with nitrification by leaching and den~trification in situations where them losses are high. However, it is possible that some of the, effccts of thcse materia Is could be due to immobilization-rcmineralization of N part~cularly when the carbonaceour materials are added with fertilizers at high rates. A methodology involving the use of lbN-labelled fertilizers is advanced to sort out whether the beneficial effects of non-edible oil seed cakes and other materials are due to retardation of nitrification and or immobilization-remineralization of fertilizer N. Using the proposed technique it would be possible to make realistic evaluation of the wealth, of indigenous products as nitrification inhibitors. Following the proposed approach ~t would also bo possible to widen the scope and dc th of research in this area for ultimately better exploitation of indigenous materia Is' as nitrification inhibitors.

Item Type: Article
Subjects: Others > Soil Science
Others > Agriculture-Farming, Production, Technology, Economics
Others > Fertilizer Applications
Depositing User: Library ICRISAT
Date Deposited: 18 Dec 2011 06:31
Last Modified: 18 Dec 2011 06:31
Official URL:
Acknowledgement: UNSPECIFIED
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