湿地松不同季节育苗实验,于1977年秋至1978年春分期分批进行播种,经一年多培育,苗木茁壮生长,最高达92厘米,达到预期效果。一、圃地整理圃地面积0.7亩,坐西朝东,海拔50米,土壤PH值5,肥力中等。于1977年8月下旬开始整地,锄草烧杂积肥,三犁三耙,用硫酸亚铁10斤进行消毒。下火烧土百担,人粪尿65担 Slash pine seedlings in different seasons experiments, in the autumn of 1977 to the spring of 1978 in batches for planting, after more than a year of cultivation, seedlings thrive, up to 92 cm, to achieve the desired results. First, the nursery garden area of ​​0.7 acres, sitting west east, 50 meters above sea level, soil PH value of 5, moderate fertility. In late August 1977 began soil preparation, weeding mixed fertilizer, Sanli three harrows, with 10 pounds of ferrous sulfate disinfection. Under the fire soil hundred, human waste 65 Tam