A field experiment was conducted to study the response of rice varieties IET 3280, CO. 29 with 0, 12.5, 25.0 and kg/ha Zinc sulphate. The results indicated that the maximum shoot length and shoot dry weight was recorded at 25 kg/ha level in all the varieties. The root length and root weight showed only phenomenal increase to the applied zinc. Zinc application at 25 kg/ha improved the N, P and K uptake and a decrease trend was noticed at 50 kg/ha level. However, the content of zinc increased with increased level of zinc application upto 50 kg/ha level. But the maximum grain yield was recorded at 25 kg/ha level of zinc supplements.
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Tamil Nadu Agricultural University
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