匍匐豆科覆盖作物三裂叶葛藤、蝴蝶豆和毛蔓豆等的大田试验一致表明,在种有这些覆盖植区的胶树,在非生产期的茎围比没有种豆科覆盖地区的胶树大些,因而在开割头几年的产量较高。然而,这些豆科覆盖往往不能完全有效地抑制杂草,特别是米甘草和禾本草。因此,为了保持豆科覆盖的优势,从定植到第三年底,都必须进行认真的人工除草。此后,随着胶树荫蔽的增加,豆科覆盖的生长愈来愈差,到胶树树冠层郁闭时,豆科植物就很少或没有覆盖土壤的作用,而为耐荫的杂草所取代。 1960年在西马来西亚各个地区建立了测定国内外60种豆科矮灌木和匍匐植物的适应性试 Field trials of creeping legume cover crops, Tripterygylidium, Butterflies, and Mature beans showed that in the gum trees planted with these covered areas, the shoot size in the non-productive period was larger than that in the non-legume covered areas Therefore, the output in the first few years of cutting is higher. However, these legume cover often can not completely inhibit weeds, especially rice licorice and grass. Therefore, in order to maintain the advantages of legume coverage, from planting to the end of the third year, serious manual weeding must be carried out. Since then, with the plastic tree shade increases, the growth of legume cover more and more poor, to the gum tree canopy canopy, leguminous plants with little or no coverage of the role of the soil, and shade-tolerant weeds replace. In 1960 in various regions of Western Malaysia to establish a test at home and abroad 60 leguminous shrubs and creeping plants adaptability test