不同施肥方式对西宁油松人工林生长的影响

为了探求施肥方式与油松人工林生长的相关性,筛选最佳的施肥方式,提高西宁市油松人工林的质量,本试验以立地条件相同的8年生油松人工林为研究对象,采用完全随机区组的方法设置3个不同肥料种类且每种肥料4个施肥量,测量施肥前及施肥后两年内油松的胸径、树高生长量,分析不同施肥方式下生长量的差异,得出最佳的施肥方式。结果表明：尿素的最佳施用量为45g/株;复合肥的最佳施用量为150g/株;鸡粪粪肥的最佳施用量为1300g/株;尿素(即速效肥)第一年更能促进油松生长,鸡粪粪肥(即有机肥)第二年更能促进油松生长。结合所有结果分析得出生长效果最好的肥料为复合肥,施用量为150g/株。

Effects Of Different Fertilization Methods On The Growth Of Pinus Tabulaeformis Plantation

In order to explore the correlation between the fertilization method and the growth of Pinus tabulaeformis plantation, the best fertilization method was screened to improve the quality of Pinus tabulaeformis plantation in Xining. In this experiment, the 8-year-old Pinus tabulaeformis plantation with the same site conditions was used as the research object. Three different fertilizer types and four rates for each fertilizer were set by using a completely randomized block method. The pine nutrient was measured before and after fertilization for two years. The difference in breast diameter and tree height was analyzed, and the difference in growth under different fertilization methods was analyzed to obtain the best fertilization method. The results showed that the optimum application rate of urea was 45g/plant; the optimum application rate of compound fertilizer was 150g/plant; the optimum application rate of chicken manure was 1300g/plant; urea (quick-acting fertilizer) was more capable in the first year. To promote the growth of Pinus tabulaeformis, chicken manure (organic fertilizer) can promote the growth of Pinus tabulaeformis in the second year. Combined with all the results, the best growth fertilizer was compound fertilizer, and the application rate was 150g/plant.