Effects of the Optimized Irrigation-optimized Fertilization and the Traditional Irrigation-traditional Fertilization on Growth,Development and Yield of Winter Wheat

doi:10.3321/j.issn:1000-7091.2002.04.015

Abstract

Abstract: The critical growth-development stages of the optimized irrigation-optimized fertilization was the same as the traditional irrigation-traditional fertilization, and there was no significant difference in dynamic changes of plant height, the tiller number per unit area, LAI,DMW between the opt imiaed water-nitrogen measure and traditional water-nitrogen practice. The wheat treated by the optimized water-nit rogen measure showed superior matter production structure, slightly reduced total area of flag leaf, 2nd leaf, 3nd leaf and 4nd leaf from top, predominantly shorter base internode length, longer internode length under ear, the slightly more ear number, the fewer grain number per ear, heavier weight of 1000 grains and a trifle higher grain yield level than the wheat managed by the conventional water-nitrogen way.

Key words: Winter wheat, Optimized water-nitrogen, Traditional water-nitrogen

CLC Number:

S17.4

LI Zhi-yong, WANG Pu, ZHAI Zhi-xi, Marion Boening-Zilkens. Effects of the Optimized Irrigation-optimized Fertilization and the Traditional Irrigation-traditional Fertilization on Growth,Development and Yield of Winter Wheat[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2002, 17(4): 68-72. doi: 10.3321/j.issn:1000-7091.2002.04.015.

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