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在股树根系范围内埋施电石或充乙炔气体是避免树干施药防害树皮的高效刺激方法。对针刺采胶而言,埋施电石比涂施乙烯利增产效果更显著,稀释效应更强烈。成龄芽接树的电石施用量以每15～20天埋施10～15克为宜。胶树基部施用乙炔或乙烯后,距离施药部位越近的针孔,产量越高,胶乳pH越偏碱,形成有规律的梯度变化。根据施药后树干各部位针孔产量的差别,分为高效区、低效区和气体微量扩散区。这两种气体对不果胶的幼树树围生长无明显的影响。
Charging calcium carbide or acetylene gas in the root of the stock tree is an efficient method of stimulating the bark to prevent the bark from injuring. For acupuncture plastic mining, buried carbide than Ethephon yield more significant effect, the dilution effect is more intense. Calcium carbide into the tree buds of the age of 15 to 20 days every day to impose 10 to 15 grams is appropriate. After the application of acetylene or ethylene on the base of gum tree, the closer the needle hole is from the application site, the higher the yield is, the more alkaline pH of the latex is, resulting in a regular gradient change. According to the differences of the pinhole production in the trunk after application, it is divided into high efficiency zone, low efficiency zone and gas diffusion zone. These two gases have no significant effect on the growth of pectin-free saplings.