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施用666毒谷可以防治地下害虫如蛴螬、蝼蛄、金针虫等,是我们所熟知的。这三种害虫有时也为害棉苗,使棉田发生缺株,因而自1952年起,华北农业科学研究所棉作室每年照例将毒谷,与棉种拌合一起,用耩一同耩入播沟内,对防治地下害虫,效果是很好的。1953年我们开始试用颗粒磷肥,用耧与拌好666毒谷的棉种一同耩入。棉苗出土后,部分棉苗,中途枯死,在枯死棉苗处,经常发见较多颗粒肥料,当时认为系颗粒肥料,侵蚀棉苗根所致。为证实这一猜测、同时也想到施用666毒谷或可能也有关系,遂临
The use of 666 poisoning can control underground pests such as catfish, catfish, pinworm and so on, is well known to us. These three kinds of pests sometimes damage cotton seedlings, leaving the cotton fields lacking, so since 1952, North China Institute of Agricultural Cotton as usual every year will poison valley, mixed with the cotton seed together with the same sow into the sow Within the prevention and control of underground pests, the effect is very good. In 1953 we started to test the grain phosphate fertilizer, with 耧 and mix 666 poison valley cotton together into the. After the cotton seedings were excavated, some of the cotton seedlings died midway. At the dead cotton seedling, more granular fertilizers were often found. At that time, it was believed that the grain fertilizers caused erosion of cotton seedling roots. To confirm this speculation, but also think of the use of 666 poison valley may also have relations, then