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猪殃殃是我省分布广泛,危害严重的麦田恶性杂草。近年来,发生数量和危害面积还在不断上升,是麦子增产的障碍之一。笔者从1979年秋播开始对其生物学特性和发生规律作了调查观察,现将观察结果简报如下: 一、分布特点猪殃殃的分布和土质有很大关系,据在本地区9个县46个公社调查1561亩麦田(代表面积一万七千余亩)每平方尺发生10株以上的危害面积,沙土地区占调查面积的12.2％,粘土
Galium aparine is widely distributed in our province, endangering serious wheat field weed. In recent years, the number of occurrences and the harms of the area are still on the rise, which is one of the obstacles to the wheat yield increase. The author started from the autumn of 1979 began to investigate its biological characteristics and occurrence of the law, the observations are now briefed as follows: First, the distribution of the distribution of Galium aparine and soil has a great relationship, according to nine counties in the region 46 A commune investigation of 1561 acres of wheat fields (representing an area of more than 1700 acres) per square foot occurred more than 10 hazardous area, sandy area accounted for 12.2% of the survey area, clay