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Studies in water relations of rice part 7 effect of varying water regimes and levels of nitrogen on the growth yield and nitrogen uptake in rice



Studies in water relations of rice part 7 effect of varying water regimes and levels of nitrogen on the growth yield and nitrogen uptake in rice



Plant Science (Lucknow) 7: 51-55



The interaction of N fertilization and watering on the growth, yield and N uptake of rice was studied in pot culture with a medium duration winter (aman) cultivar Bhasamanik. The cultivar performed best with the differential supply of water at various stages of growth and development. Significantly higher yield under high water regime and moderate N level, and under moderate water and high N level suggest the existence of a mutual interdependence of water and N in determining growth and yield. Although N uptake was more under higher N fertilization and high irrigation the element was most profitably assimilated under the treatment combinations of high watering-moderate N and high N-moderate watering. The results clearly indicate the possibility of economizing water and fertilizer use in rice cultivation.

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