Study on the Assistant Decision Model of Irrigation in Growth Period of Winter Wheat in Beijing

doi:10.7668/hbnxb.2015.S1.043

Abstract

Abstract: Water requirement of winter wheat in Beijing district varies in different growth stages,irrigation volume affect the sowing,cultivation and harvest of winter wheat.With consultation of experts and data of historical literatures,critical parameters about soil humidity for each growth stage of winter wheat were obtained,such as Beijing all growing stage of winter wheat soil moisture lethal limits,suitable lower limit,the most suitable,suitable limit,lethal limit 5 point values and weights of these five points.After data fitting operated by Matlab,fitness model of soil humidity in each growth stage of winter wheat was provided.With well understanding of effective precipitation in Beijing and water requirement of winter wheat,refined irrigation volume for winter wheat of different growth stages was made with the help of irrigation assistant decision model.fitness model of soil humidity in each growth stage of winter wheat was applied as basic data,a irrigation assistant decision model of winter wheat in Beijing was built.

Key words: Winter wheat, Suitability evaluation model, Water content, Each growth period

CLC Number:

S512.1

WANG Yi-gang, XU Jian, GUO Da-peng, JIAO Jian. Study on the Assistant Decision Model of Irrigation in Growth Period of Winter Wheat in Beijing[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2015, 30(S1): 241-244. doi: 10.7668/hbnxb.2015.S1.043.

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