Nutrition of wheat under wet injury and its regulation

Abstract

Abstract: With pot experiment,this paper dealt with the effects of different nutrition regulations on nutrient absorption and crop yield of wheat under waterlogged condition. N,P,K,Zn,Cu uptakes by wheat were greatly inhibited by waterlogging.The total amounts of reusable elements N,P,K and Zn in leaves decreased obviously in stems but did not in ears, compared with control;while the total amount of element Cu in all parts was reduced by waterlogging.The yield of individual wheat plant was significantly reduced under waterlogging.Additional N-fertilizer or spraying N,P and K significantly increased the uptake of nutrients and the yield for Wanmai 19 under light waterlogging,but were not effective for Yanmai 158 under heavy waterlogging.A positive correlation was found between the yield of wheat under waterlogging and the N accumulation in leaves.

Key words: Wheat, Wet injury, Nutrition regulation

CHANG Jiang. Nutrition of wheat under wet injury and its regulation[J]. Chinese Journal of Applied Ecology, 2000, (3): 373-376.

References

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