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OptimalagronomicalpracticespackageforwheatmodelizedcultivationmanagementinBeijingarea

DOI: 10.7668/hbnxb.1993.S2.020, PP. 110-117

Keywords: wheat,agronomicalpracticespackage,modelizedcultivationmanagement,systemdecision-makinganalysis

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Abstract:

Basedontheprinciplesofsystemengineering,economicstheoryandlocalconditionofproduction,studiescarriedoutbytaking"quadratic-regression-orthogonal-rotational"andran-domizedcompleteblockdesignstodeterminetheOptimalAgronomicalPracticesPackage（OAPP）forWheatModelizedCultivationManagement（WMCM）bysystemdecision-makinganalysis.TheOAPPwasexpectedtomeetvariousgoalsofdifferentlevelsofyieldandeconomicbenefitofmiddleandhighfertilitylandinBeijingarea.TakingcultivarJINGDONG-1（"JD-1"）asanexample,theOAPPforgrainyield≥6750kg/haandnetbenefit≥360US（?）/hawasconsist-edasfollows:density=195plants/m2;springirrigationtimes=4（stemelongation,booting,flowering,and20daysafteranthesis）;fertilization=150-188kgN/ha,113-128kgP2O5/ha.

 References

[1]  Chen LS.(1986)The principles of fertilizer application in field and its popularization. Beijing:The Publisher of Beijing Agricultural University, 50-67 (in Chinese ) Khan A and Spilde.(1992)Agronomic and economic response of spring wheat cultivars to ethephon. Agronomy Journal，84:399-402 Meng JZ. (1984) Agricultural engineering. Beijing:The Publisher of Beijing Agricultural University. 90-100 Van Keulen H. (1981)Modeling the interaction of water and nitrogen. Plant soil，58:205-229 Whiteflies DM and Smith CJ.(1992)Nitrogen uptake，water use，grain yield and protein content in wheat. Field Crops Research，29:1-14

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