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我县于一九七九年四月十七至十九日,在竖岗公社进行了飞机喷洒磷酸二氢钾防御小麦干热风试验,共喷洒麦田一万五千亩(实际二万二千亩)。通过12个点的调查结果表明,亩产300斤至700斤生产水平上,每亩增产20至66斤,增产率2.7～12％。12个点平均亩产572.5斤。每亩增产48.6斤,增产率为8.46％。(见表1) 飞机喷洒磷酸二氢钾防御干热风,增产效果分析如下。
Our county conducted a dry-hot air blast test of potassium dihydrogen phosphate (KH2PO4) on wheat in the vertical commune from April 17 to April 19, 1979. It sprayed 15,000 acres of wheat fields (22,000 mu ). The results of the survey conducted at 12 spots show that an increase of 20 to 66 catties per acre and an increase of 2.7 to 12% in yield per mu yield of 300 kg to 700 kg per mu. 12 points average yield 572.5 kg. 48.6 kg per acre yield increase rate of 8.46%. (See Table 1) Aircraft spraying potassium dihydrogen phosphate dry hot air defense, the effect of increased production is as follows.