作　　者： ; ; ; ; ;

机构地区： 中国热带农业科学院热带作物品种资源研究所

出　　处： 《热带作物学报》 2014年第4期678-685,共8页

摘　　要： 大戟科植物是热带、亚热带地区重要的绿肥资源。为了解中国大戟科绿肥的培肥效果,通过田间试验,探讨施用45份分别采自海南、广西、广东、福建、云南等地的野生大戟科绿肥后其酸性土壤有机质含量随时间的动态变化。结果表明:施用绿肥后,不同绿肥对土壤有机质含量的影响不同,并且不同绿肥对土壤有机质含量的影响效果随着施用时间的变化不断变化;虽然不同大戟科绿肥对土壤有机质含量影响的效果不一,但在施用1年内均能显著增加土壤有机质的含量,在施用1个月后效果最好,但随着时间的延长,土壤有机质含量不断降低。 Euphorbiaceae plants were an important resource of green manures（GM） in the tropics and subtropics. 45 wild accession plants in Euphobiaceae, collected in various localities from Hainan, Guangdong, Guangxi, Yunnan provinces, were used to research their dynamic effect on the acid soil organic matter content with the time of application. The results indicated that after the application of the Euphorbiaceae GM, their effect on the soil organic matter was different, and the effect was different with the changes of the application time. The soil organic matter content increased significantly after one year application of the Euphorbiaceae GM, and the best effect appeared in the period of one-month application, while the effect was weaker and weaker with the prolongation of the application time since then.

关 键 词： 大戟科绿肥 有机质含量 酸性土壤

领　　域： [农业科学] [农业科学]