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Legume Research, volume 28 issue 1 (march 2005) : 12 - 16

IMPACf OF FERTILIZATION TO RICE BASED ON AN OPTIMUM NUTRIENT TREATMENT ONYIELD OF RESIDUAL BLACK GRAM AND ITS ECONOMICS

M.R. Latha, V. Murugappan

Affiliations

¹Department of Soil Science and Agricultural chemistry. Tamil Nildu Agricultural University. Coimbatore - 641003. India

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Cite article:- Latha M.R., Murugappan V. (2025). IMPACf OF FERTILIZATION TO RICE BASED ON AN OPTIMUM NUTRIENT TREATMENT ONYIELD OF RESIDUAL BLACK GRAM AND ITS ECONOMICS. Legume Research. 28(1): 12 - 16. doi: .

ABSTRACT

Field experiment was conducted in an experimental soil belonging to Kalathur series in Cauvery Delta in the rice-rice-pulse system to evaluate the influence of Optimum Nutrient Treatment evolved on the basis of nutrient sorption studies and experimental soil initial analysis, on the yield in rice and to study the subsequent residual effect of the imposed treatments on the yield of blackgram. The results of the experiment revealed that considerable amounts of residual N, P and K were left in the soil due to application of N, P and K fertilizers to the kwuvai and thaladi season rice crops. This was evidenced in the enhancement of grain and haulm yields of blackgram due to N or P or K fertilization. Zn omission from the ONT did not attain statistical significance in its influence on blackgram yield. Blanket fertilizer application reduced the yield of nutrients. Economics of fertilization also revealed the usefulness of the optimum nutrient treatment over the blanket recommendation

KEYWORDS

REFERENCES

Ancnymous (2000). Compendil1m of Research on Soil Test Crop Response Studies and rationalized fertilizer recommendations for crops in Tamil Nadu (1967-2000).
Gopala Rao. P. et al. (1991). Indian J. Agron., 36(2): 169-172.
lndulkar. B.S. and Malewar, G.U. (1990). Fertil. News, 35: 37-41.
lRRI (1993). lRRISTAT, Biometrics Unit, lnt. Rice Res. Inst., Los Banos, Phillipines.
Jeyaraman, S. (1987). Indian J. Agron., 32(4): 467-468.
Rehman, A. etal. (1988). Nudeus(Karachi), 25: 31-34.
Selvi, S. and Ramaswami, P.P. (1995). Madras Agric. J., 82: 24-26.

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IMPACf OF FERTILIZATION TO RICE BASED ON AN OPTIMUM NUTRIENT TREATMENT ONYIELD OF RESIDUAL BLACK GRAM AND ITS ECONOMICS

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