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一般情况下,抚育和施肥都能促进南方松生长。然而,一些短期研究表明:不同的松类对集约措施的反应不一。因此有必要进行一项综合遗传因素与集约措施的长期研究。材料与方法:育苗采用一种来自高地的高比重种子HSG和一种来自坡地的一般比重种子ASG。试验地在一片小于5度的缓坡上。土壤为砂壤土,不甚肥沃。10—15cm土层含:270ppm,P0.97ppm,K36ppm。1960年3～4
Under normal circumstances, tending and fertilizing can promote the growth of southern pine. However, some short-term studies show that different species of pine respond differently to intensive measures. It is therefore necessary to conduct a long-term study of integrated genetic factors and intensive measures. MATERIALS AND METHODS: Nursery use a high-gravity seed HSG from the highlands and a typical gravity ASG from the slopes. Test in a gentle slope of less than 5 degrees. Soil is sandy loam, not very fertile. 10-15cm soil layer contains: 270ppm, P0.97ppm, K36ppm. In 1960 3 ~ 4