Calculation method of irrigation quota for shrimp-rice intercropping

• Main Authors: CHEN XUXUN, ZHANG JIANTAO, PAN SHAOBIN, LIU LUGUANG, WU XIA, DONG WEI, GUAN HONGLIN, YANG XIAOWEI
• Format: Patent
• Language: Chinese; English
• Published: 22.03.2019
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

Calculation method of irrigation quota for shrimp-rice intercropping include collecting basic data and experiential value of shrimp-rice co-cropping area through on-site survey and investigation and analysis, and calculating that irrigation quota of shrimp-rice co-cropping area accord to the irrigation quota of shrimp-rice co-cropping area. 2, dividing one year into three stages according to the collected data, including non-growth stage of rice, shrimp-rice polyculture stage of rice growth stage, and shrimp-rice polyculture stage of rice growth stage; 3, determine that water balance element of the shrimp-rice co-cropping area; calculating the actual evapotranspiration ETc according to the meteorological data; 4, calculating that irrigation quota m0 of the non-growth period stage of rice;5, calculating that irrigation quota m1 of the shrimp-rice polyculture stage in the rice growing period; 6, calculating that irrigation quota m2 of the shrimp-rice co-culture stage during the rice growth period; 7, calculatin