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为了研究防御小麦干热风的有效措施,促进我省小麦生产发展,早在七十年代后期,我站曾对多种防御激素进行过三年试验,特别是八十年代以来,在省农业技术推广总站的支持下,在全省三十多个县(市)推广,累积喷洒面积达八千余万亩,在三千多个试验点调查结果证明,在小麦孕穗期叶面喷施磷酸二氢钾有明显的防御干热风的效果。一、叶面喷施磷酸二氢钾,防御小麦干热风的增产机理 1.增加小麦植株体内磷、钾含量,提
In order to study effective measures to prevent wheat dry hot and cold wind and promote the development of wheat production in our province, as early as the late seventies, our station has conducted three years of tests on various kinds of defense hormones. Especially since the 1980s, With the support of the terminus, the project was popularized in more than 30 counties (cities) in the province with an accumulated spraying area of over 8 million mu. The survey results at more than 3,000 pilot sites showed that spraying dihydrogenphosphate Potassium has a clear effect of preventing dry hot air. First, the foliar application of potassium dihydrogen phosphate, wheat dry hot wind to increase the mechanism of production 1. Increase in wheat plant phosphorus, potassium content, mention