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经两年的田间调查资料,用8种检验分布型的方法进行检定,得出柑桔木虱卵和若虫的分布型均呈聚集分布。卵的聚集是由于木虱的习性引起的,若虫的聚集是由于环境的作用引起的。进行资料代换时可用下列公式: 1.y=log(x+1) 2.x=1n(x+1)本文还提出估计田间种群数量时的最适抽样数。
After two years of field survey data, the methods of 8 test distributions were used to test the distribution of citrus psylla eggs and nymphs. The aggregation of eggs is caused by the habit of psyllids, which is caused by the environmental effects. The following formula can be used for data substitution: 1.y = log (x + 1) 2.x = 1n (x + 1) The paper also presents the optimal sampling number for estimating the population of the field.