在泰国有大面积的小胶园橡胶,大部分为低产老胶园。更新后,在幼龄胶树行间种植商品作物或粮食作物,是增加收入的重要途径之一。在倒树后的头两年,可利用的行间面积达75％,第三、四年,达50％或更多一些,这取决于橡胶的种植方法。本文介绍一个较大的间作试验的初步结果。本试验就间作物与标准豆科覆盖,和一年两次定期犁耕的或不犁耕的天然覆盖进行了比较。在更新胶园里常见到天然覆盖,这说明管理还未达到豆科覆盖控制行间的程度。泰国许多植胶区在行间普遍采用至少一 In Thailand there is a large area of ​​rubber plantation, most of the low-yielding rubber plantation. After the update, planting commercial crops or grain crops between young gum trees is one of the important ways to increase income. In the first two years after the tree fell, the area available between rows was 75%, for the third and fourth years, up to 50% or more, depending on how the rubber was planted. This article presents the preliminary results of a larger interlaboratory experiment. This trial compared the intercrop with the standard leguminosae and the twice-a-year regular or non-plowing natural coverage. Common in the renovation of rubber plantation natural coverage, indicating that the management has not yet reached the level of legume coverage control line. Many plastic planting areas in Thailand generally use at least one line