Optimized Fertilization Practice and Mathematical Modelling for High-yielding of Winter Wheat

doi:10.3321/j.issn:1000-7091.1994.03.020

Abstract

Abstract: Adopting the quadratic regression rotation design,the field locating trial about the effects of the nitrogen(N),phosphorus fertilizer(p),organic fertilizer(M)on the wheat yield had been conducted for two years at shajiang black soil area in south Henan province.The regression models on yield were established, and the combined programmes about fertilizer application for wheat yield being respectively higher than 6000,6750,7500kg/ hm² and their maximum economic benefit were suggested by optimum seeking method.The effect order of N, P and M interaction among them，and the relations between the wheat yield and expermental factors were simultaneously analysed.

Key words: Winter wheat, Maths model, Optimum fertilization programme, Yield

CLC Number:

S512.106.2

Zhang Guilan, Sun Kegang, Li Guibao, Wang Ying, Lu Aiying, Qiao Wenxue. Optimized Fertilization Practice and Mathematical Modelling for High-yielding of Winter Wheat[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1994, 9(3): 92-99. doi: 10.3321/j.issn:1000-7091.1994.03.020.

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