1975～1978年,由河南省气象局主持,组织部分台站和农科所,农学院参加的干热风防御措施研究协作组,对喷洒磷酸二氢钾防御小麦干热风的作用进行协作研究,取得了较好的成果。从1979年开始,由河南省农业厅、省气象局、省民航局等单位参加,共同组成“小麦叶面喷洒激素防御干热风示范推广协作组”,在全省范围内采用了飞机大 From 1975 to 1978, a collaborative study was conducted by Henan Provincial Meteorological Bureau to organize a collaborative research group on dry-hot wind defensive measures involving some stations and agricultural and agricultural colleges to study the effect of spraying potassium dihydrogen phosphate on the dry and hot winds of wheat, Better results. From 1979, Henan Provincial Department of Agriculture, Provincial Bureau of Meteorology, Civil Aviation Authority and other units to participate in the joint formation of “wheat leaf surface spraying hormones dry and hot wind demonstration and promotion cooperation group” within the province using aircraft large