橡胶树的非生产期较长,无性系一般为5—7年。为了缩短非生产期,在栽培方面已进行了促进胶树生长和均一性的研究。例如选择速生的无性系,改进园艺技术和农业生产措施等。在采胶方面,最简单的方法之一是,在胶树树围未达到开割标准时开采。在象牙海岸,一般规定在胶树离地1米处树围达50厘米时开割。采用常规的割胶制度(1/2螺旋线),提早采胶的开割标准只能降 Non-productive rubber tree longer, clonal generally 5-7 years. In order to shorten the non-productive period, studies on growth and homogenization of gum trees have been conducted on cultivation. Examples include fast-growing clones, improved horticulture techniques and agricultural production practices. One of the easiest ways to do this is to mined the gum tree before it reaches the cut standard. In the Ivory Coast, the general provisions in the plastic tree 1 m off the ground when the tree circumference of 50 cm cut open. With the conventional tapping system (1/2 helix), the standard for pre-tapping can only be lowered