摘要
为指导桉树人工林肥料施用的科学性,文章以黄冕林场沃土工程示范林为研究对象,设置化肥减量配施有机肥以及传统施肥为对照进行试验,采集并测定15个土壤肥力指标。结果表明:增施有机肥的土壤pH值与有机质含量比传统施肥分别增加了2.70%和10.62%,有效磷的含量显著提升,说明化肥减量配施有机肥措施对于缓解土壤酸化以及提升有机质含量具有明显优势。传统施肥的土壤微量元素Ca、Mg、B等含量高于化肥减量配施有机肥,但后者的平均土壤肥力指数为(0.63)比前者(0.49)提升了28.57%,说明化肥减量配施有机肥对于肥力提升具有正向作用。
In order to guide the scientific application of fertilizer in eucalypt plantations,this study examined a fertile soil project demonstration forest of Huangmian Forest Farm and compared treatments involving chemical fertilizer reduction combined with organic fertilizer and also traditional fertilizer.For this,soil samples were collected and analysed to enable 15 soil fertility indexes to be calculated.The results showed that the pH value and organic matter content of the soils in-creased by 2.70%and 10.62%respectively,compared with the traditional fertilization,and the soil content of available phosphorus increased significantly,indicating that a reduction of chemical fertilizer combined with organic fertilizer has obvious advantages in alleviating soil acidification and increasing soil organic matter content.The contents of trace ele-ments Ca,Mg and B in soil under traditional fertilization were higher than those under fertilizer reduction combined with organic fertilizer,but the average soil fertility index of the latter(0.63)was 28.57%higher than that of the former(0.49),indicating that fertilizer reduction combined with organic fertilizer had a positive effect on overall soil fertility.
作者
张泽尧
秦夏杰
廖维建
潘会彪
唐健
ZHANG Zeyao;QIN Xiajie;LIAO Weijian;PAN Huibiao;TANG Jian(Guangxi Huangmian State-owned Forest Farm,Liuzhou 545618,Guangxi,China;Guangxi Forestry Research Institute,Nanning 530002,Guangxi,China)
出处
《桉树科技》
2023年第2期80-84,共5页
Eucalypt Science & Technology
关键词
土壤质量
化肥减量
有机质提升
人工林
内梅罗指数法
soil quality
chemical fertilizer reduction
organic matter improvement
plantation
nemerow index
