Patent ID: 11944048
Assignee: CHINA INSTITUTE OF WATER RESOURCES AND HYDROPOWER RESEARCH
Field: Measurement (Instruments)
Classification: CPC A  G | IPC A  G

Claim 6:
7. The decision-making method according to claim 1, wherein
in step S6, if the crop has not entered the jointing stage, a method for monitoring soil moisture content data by using the optimized soil moisture sensor network and performing the variable rate irrigation specifically comprises:
performing the variable rate irrigation when a soil moisture content in one of the low-AWC management zone, the medium-AWC management zone and the high-AWC management zone reaches a set irrigation water lower limit, wherein a water amount for the variable rate irrigation is determined by a difference between an irrigation water upper limit and a measured soil moisture content in each of the low-AWC management zone, the medium-AWC management zone and the high-AWC management zone; and
if the crop has entered the jointing stage, performing the variable rate irrigation when the soil moisture content in one of the low-AWC management zone, the medium-AWC management zone and the high-AWC management zone reaches the set irrigation water lower limit; under semi-arid climate conditions, performing the variable rate irrigation by using the ground-fixed canopy temperature sensors, the optimized airborne canopy temperature sensor network and monitoring data obtained from the automatic weather station; and under semi-humid climate conditions, performing the variable rate irrigation by using the optimized soil moisture sensor network, the optimized airborne canopy temperature sensor network and the ground-fixed canopy temperature sensors.