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STANDARDISING CRITICAL LEAF COLOUR CHART VALUES FOR TRANSPLANTED RicE IN CAUVERY NEW DELTA

S. Porpavai, S. Muralikrishnasamy, T. Nadanassababady, P. Jayapaul, V. Balasubramanian1

Affiliations

¹Soil and Water Management Research Institute, Kattuthottam, Thanjavur - 603 001, India

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Cite article:- Porpavai S., Muralikrishnasamy S., Nadanassababady T., Jayapaul P., Balasubramanian1 V. (2025). STANDARDISING CRITICAL LEAF COLOUR CHART VALUES FOR TRANSPLANTED RicE IN CAUVERY NEW DELTA. Agricultural Science Digest. 22(3): 207 - 208. doi: .

ABSTRACT

Results of experiments conducted to standardise the critical leaf colour chart values in comparison with SPAD based N management techniques for transplanted rice (in Cauvery new delta zone) indicated that in dry season leaf colour chart colour shade 4 based nitrogen management and in wet season leaf colour chart colour shade 5 based nitrogen management recorded higher grain yield and found comparable with SPAD 37 based nitrogen nitrogen management.

KEYWORDS

REFERENCES

Dobermann, A. arid White, P.E (1999). Nut. eye. Agroecosyst. 53: 56~63.
Singh, U. and Buresh,~.J .. (1994). In: Proc. 15th World Congress of Soil Scien/;e, Acapulco, Mexico, pp. 643-653.

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