施肥处理对连栽杉木幼林单叶面积生长的效应

The Effect of Different Fertilizer Treatments on the Growthof Chinese Fir Single Leaf Area in the ReplantedChinese Fir Young Plantation

在第三代杉木幼林地上施用９种不同处理的肥料，并分析其对杉木幼林的单叶面积生长的影响，结果表明不同施肥处理对单叶面积生长有不同的影响，其中Ｍ处理（ＮＰＫ＋微量元素）对单叶面积生长的促进作用最大．

The fertilizer trial including NPKNPNKPKNPKM(NPK+trace-element)etc,nine kinds of treatments was carried out on third-generation young Chinese fir plantation.The impact of fertilizer on the single leaf area of Chinese fir was determined in this paper.The result showed that the impact of different kinds of fertilizer on the single leaf area of Chinese fir was different.Of all treatments,the promotion of M(NPK+trace-element) to the growth of Chinese fir leaf area was the largest.