Integrated Crop Coefficients Approach of Interplanting Mode in Hetao Irrigation Area
DAI Jiaxin
LI Jiuhao
SHI Haibin
ZHU Li
TIAN Delong
YAN Jianwen
XIA Yuhong
Abstract：Based on the method which was recommended by FAO,the single and dual crop coefficients for three interplanting modes (wheat interplanting maize with plastic film mulching,wheat interplanting maize without film mulching and wheat interplanting oil sunflower) were calculated respectively.The experimental station was located in Deng Kou,Hetao irrigation district in Inner Mongolia.The results showed that the three interplanting modes had two peaks of water requirement during the whole growth stage.Crop coefficient in coexistence stage showed that the single value calculation results were higher than the dual values approach,while it was contrary in a single crop growth stage.There was significant difference in the coexistence stage and little difference in the independent phase for a single crop whether single or dual crop coefficient approach to calculate the integrated ET for interplanting crops.The article provided more detailed birth stages division and named separately for the crops of interplanting mode,expecting to provide more accurate foundations of calculation for crop evapotranspi ration of interplanting mode.
Keywords：interplanting modeintegrated crop coefficient approachintegrated ETwheatmaizeoil sunflower
Publication Date：2017-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：7( 9-15 )