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The Indian Council of Agricultural Research (ICAR) is an autonomous organisation under the Department of Agricultural Research and Education (DARE), Ministry of Agriculture, Government of India. Formerly known as Imperial Council of Agricultural Research, it was established on 16 July 1929 as a registered society under the Societies Registration Act, 1860 in pursuance of the report of the Royal Commission on Agriculture. The ICAR has its headquarters at New Delhi.

Journal Article

Journal article

Effect of a decade long fertilizer and manure application on soil fertility and productivity of rice-wheat system in a mollisol  [1999]

Singh, N.P.; Sachan, R.S.; Pandey, P.C.; Bisht, P.S.(Govind Ballabh Pant University of Agriculture and Technology, Pantnagar (India). Dept. of Soil Science);

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The status of soil nutrients, their depletion and build-up and crop productivity after a decade long intensive cropping under various fertilizer and manurial treatments on an Aquic Hapludoll was studied. The rotation was rice-wheat and treatments included various combinations of N, P, K, Zn and FYM. After 10 years of continuous intensive cropping under various fertilizer and manurial treatments, the differences in the values of pH, organic matter, available P, K, S, B, Mo and DTPA extractable micro-nutrient cations in soil at 20 cm depth and crop productivity were found to be statistically significant. The status of organic matter went down drastically except in the plots receiving single superphosphate and FYM. In general, there was general reduction in the contents of available P,K and DTPA-Zn after 10 years of rice-wheat cropping where the plots did not receive these nutrients either directly or through FYM. However, there was over all increase in the DTPA extractable Cu, Mn, Fe and availabel B and Mo during the period in the plots treated with single super phosphate and/or FYM. The combined effect of deficiency of Zn, toxicities of Fe, Mn, Cu and B and imbalances due to the antagonisms between mainly P-Zn, Fe-Zn, B-Cu, Cu-Zn, etc. seemed to be responsible for the loss of productivity of rice and wheat during the 10-year-period in some treatments. The crop productivity of rice and wheat, after 10 years declined in imbalanced fertilizer treatments like N
, NK, NP and PK. The grain yield of rice and wheat in balanced fertilizer treatments viz. NPK + FYM and NPK + FYM+Zn foliar were maintained during this period.

From the journal

Journal of the Indian Society of Soil Science (India).

ISSN : 0019-638X