A Simulation Model of Agronomic Practices for Good-qudity and High-yield Cotton under Film-mulching

doi:10.3321/j.issn:1000-7091.1988.02.007

Abstract

Abstract: A Regression method of orthogonal conic substitution with 5 factors has been employed in thu study.Plants/mu,sowing-date.the supplement of nitrogen,the concentration of growth regulator and the number of fruiting branchs,which can all affect the yield of cotton under the filmmulching conduion,were studied quantitatively and synthetically.Being tried for three years on many testing sites,the cntton·yielding simulation model was built up,and the optimal combination of agronomic practices was obtained.The model was used to study the yield responses to various practices and uteraceions among the practices.The results of information feedback demonstration show that,the optimal combination of farming practics greatly and significantly increase the yield and benefit.

Key words: Cotton, Film-mulcting, SimulaTion model, Information feedback

Fan Zhijie, Nie Anquan, Wang Jingwen, Yao Zhengliang, Wang Qiuye. A Simulation Model of Agronomic Practices for Good-qudity and High-yield Cotton under Film-mulching[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1988, 3(2): 38-45. doi: 10.3321/j.issn:1000-7091.1988.02.007.

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