摘要
本试验以立地条件相同的八年生油松人工林为研究对象,设计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2年内油松的胸径、树高生长量,分析不同施肥方式下油松生长量的差异,得出最佳施肥方式。结果表明,尿素、复合肥、鸡粪的最佳施用量分别为45、150、1300 g/株;尿素(即速效肥)、复合肥第1年便能促进油松生长,鸡粪(即有机肥)第2年可促进油松生长。综合分析环保、成本、生长效果等因素,油松施肥以施复合肥150 g/株为宜。
In this experiment,three different fertilizer types and four fertilizer application rates were designed for the 8-year-old Pinus tabulaef-ormis plantation with the same site conditions.The DBH and tree height of Pinus tabulaeformis were measured before and two years after fertilization,and the differences in growth rates of Pinus tabulaeformis under different fertilization methods were analyzed to obtain the best fertilization method.The results showed that the optimal dosage of urea,compound fertilizer and chicken manure were 45 g/plant,150 g/plant and 1300 g/plant,respectively.Urea(namely fast-release fertilizer)and compound fertilizer could promote the growth of Pinus tabulaeformis in the first year,chicken manure(namely organic fertilizer)could promote the growth of Pinus tabulaeformis in the second year.Comprehensive environmental protection,cost,growth effect and other factors,the best fertilizer was compound fertilizer,and the application rate was 150 g/plant.
作者
胡文忠
谷鑫鑫
司剑华
贡晓清
HU Wen-zhong;GU Xin-xin;SI Jian-hua;GONG Xiao-qing(Datong Forestry Bureau in Qinghai Province,Xining Qinghai 810100;College of Agriculture and Animal Husbandry,Qinghai University;College of Forestry,Beijing Forestry University)
出处
《现代农业科技》
2019年第24期103-105,107,共4页
Modern Agricultural Science and Technology
基金
青海省科技厅项目“西宁市人工林生态系统健康维护与经营技术研究”(2016-HZ-811)
西宁市不同林分变化与气候及土壤水生态的耦合机制研究(2019-HZ-809)
关键词
油松
人工林
施肥方式
生长指标
青海西宁
Pinus tabulaeformis
plantation
fertilization method
mass index
Xining Qinghai
作者简介
胡文忠(1968-),男,青海西宁人,高级工程师,从事林业方面的研究工作;通信作者:谷鑫鑫.
