不同立地条件及施肥方式对杨树生长量的影响

Effect of Different Site Conditions & Application Methods in Growth of Poplar

以新疆和静县沙壤土、风沙土、砾土质戈壁等3种典型立地条件为研究对象,分析了杨树生长量的影响因素,以期为杨树的推广种植提供参考。结果表明:3种立地条件下,乌拉斯台农场(沙壤土),地力优,杨树生长好,其次为夏孜尕提(砾土质戈壁),最差为沙河子(风沙土);相同施肥条件下,施用复合肥时杨树长势更好,且在施用复合肥100g.株-1时,效果达到最佳。土壤理化性质分析表明:土壤有机质含量与土壤pH值存在负相关,全氮、全磷与有机质呈极显著相关,土壤有机质、全氮与土壤容重都呈显著负相关,但土壤全钾含量正好相反,即全钾与土壤容重呈显著正相关。

Taking sandy loam, aeolian sandy soil, gobi gravel soil in Hejing County of Xinjiang as the study area, influencing factors on growth of poplar were analyzed. Result shows that ：under three kinds of site conditions, soil fertility ＆growth of Wulasitai farm （sandy loam） are all superior; followed by Xiazigati（gobi gravel soil）; the worst is the Shahezi（aeolian sandy soil） ; under the same fertilization conditions, poplar grow well by applying cornpound fertilizer;the effect is optimal while applying 100 g · plant^-1 compound fertilizer; analysis of the soil physical chemical properties shows that ：soil organic matter content and soil pH value have negative relation; total nitrogen and total phosphorus showed a very significant correlation to organic matter;soil organic matter, total nitrogen and soil bulk density has a significant negative correlation, but the content of soil total potassium is opposite, total potassium and soil bulk density appear significant positive correlation.