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池杉是农田林网化和四旁绿化的优良树种.为了加快育苗速度,培育大苗壮苗,探索通过苗粮间作,获得苗粮双丰收的途径,我们根据池杉和农作物不同的生物学特性,从1979年开始,在城北公社林场进行池杉苗木与农作物间作试验,已取得一定的效果,现概述如下:一、试验地概况试验地设在城北公社林场第二苗圃,该地属沿江水田地区,系由长江沉积而成,粘性土壤,pH7.7,立地条件中等.历年年平均温度为15℃,7月份最热,1月份最冷,夏季最高温度一般在36℃左右,最高年份达39℃.降水量平均为1013毫米.常年平均日照时数为2169小时.1978年春,移栽一年生池杉实生苗21亩,株行距为33×66厘米,行向南北,第
In order to speed up the seedling growth, cultivate strong seedlings and explore the ways of seedling and grain harvest through seedling intercropping, according to the biological characteristics of taxane and crops, From 1979 onwards, in Shibei commune forest farms fir seedlings and crop intercropping experiment has achieved some results, are summarized as follows: First, the experimental site of the experiment is located in the North Gongshu forestry second nursery, the area is along the Yangtze River paddy fields , Is formed by the deposition of the Yangtze River, sticky soil, pH7.7, the site conditions are medium.The annual average temperature is 15 ℃, the hottest in July, the coldest in January, the summer maximum temperature is generally about 36 ℃, the highest in 39 ℃. The average rainfall of 1013 mm. The average annual sunshine hours of 2169 hours. In the spring of 1978, transplanted annual 21 acres of pond fir seedlings, spacing of 33 × 66 cm line to North and South, the first