配方施肥对泡桐林生长及土壤质量的影响  

Effects of different fertilization treatments on stand growth of Paulownia fortuneiand soil quality

作　　者：涂佳[1,2] 申爱荣[1] 吴天乐[1] 吴立潮[2] 吴建平[1] 

机构地区：[1]湖南省林业科学院,湖南长沙410004 [2]中南林业科技大学,湖南长沙410004

出　　处：《湖南林业科技》2013年第1期20-24,共5页Hunan Forestry Science & Technology

基　　金：农业科技成果转化资金项目(2011GB24320015)

摘　　要：以3年生泡桐林为研究对象,探讨不同施肥配方对泡桐林生长及土壤质量的影响。结果表明:配方Ⅲ(每株试验木施肥量:0.3 kg尿素+0.18 kg纯N+0.5 kg钙镁磷+0.07 kg纯P+0.25 kg氯化钾+0.19 kg纯K)为最佳施肥配方。经过配方Ⅲ处理过的泡桐林地,土壤有机质和速效氮、磷、钾含量均显著提高;根际土壤微生物数量明显增多;泡桐林的生长量也得到较大的增长。Different formulations of fertilizer used on the 3-year-old Paulowniafortunei forest, the effects of different fertilization treat- ments on stand growth of Paulownia fortunei and soil quality were studied. The results showed that, formula ili was the best fertilizer formula, of which the amount per plant was 0. 3 kg urea, 0. 18 kg pure N , 0. 5 kg calcium and magnesium phosphate, 0.07 kg pure P, 0. 25 kg potassium chloride and 0. 19 kg pure K. Treated by formula Ⅲ, the contents of organic matter, available nitrogen, phos- phorus and potassium were significantly increased. The rhizosphere soil microbial volumes of Paulowniaforttmei forest were also signifi- cantly enhanced. And the growth increment of Paulownia fortunei had also been a large increase.

关 键 词：泡桐 配方施肥 土壤理化性质 土壤微生物 生长量 

分 类 号：S714.2[农业科学—林学] S792.43