摘要
为探明林木枝条覆盖对宁夏沙漠化土壤理化性质的影响.本研究以腐熟林木枝条和不腐熟林木枝条为材料,探讨两种处理方式的林木枝条覆盖对宁夏沙土地葡萄园土壤含水量、温度变化、pH值和养分的影响,以及对杂草抑制的效果.结果表明,林木枝条覆盖能够提高果园土壤有机质含量、降低土壤pH值、增加土壤氮磷钾含量,同时还可以缓冲土壤温度的急剧变化,有效保持土壤水分;腐熟林木枝条与不腐熟枝杆相比更能有效提高土壤有机质及养分含量;另外林木枝条覆盖还能有效减少地表杂草生物量.
To explore the effects of tree branch mulching on the physical and chemical properties of desertified soils in Ningxia. In this study, decomposed tree branches and non-decomposed tree branches were used as materials to investigate the effects of two kinds of material mulching on soil moisture, temperature, pH and nutrients, and weed control in Ningxia sandy land vineyard. The results showed that crushing tree branches to cover aeolian sandy soil orchards could increase soil organic matter content, reduce soil pH value, increase soil nitrogen, phosphorus and potassium content, buffer the sharp change of soil temperature and effectively maintain soil moisture, and decomposed tree branches could improve soil organic matter and nutrients more effectively than non-decomposed branches. In addition, tree branch mulching can effectively reduce the growth of surface weeds.
作者
郭军成
王明国
李欣
朱志明
李涛
Guo Juncheng;Wang Mingguo;Li Xin;Zhu Zhiming;Li Tao(Ningxia Agricultural Technology Extension Station,Yinchuan,750001,China;Ningxia Forestry and Grassland Bureau,Yinchuan 750001,China)
出处
《农业科学研究》
2019年第3期14-18,共5页
Journal of Agricultural Sciences
关键词
林木枝条
覆盖还田
土壤水肥
tree branches
mulching and returning to the field
soil water and fertilizer
