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在苏联乌杨诺夫斯克林业管理局某采脂大队,应用了新的中央林化所采脂实验室研究的松脂分泌刺激索——(?)。在1969年曾设置了两个50棵树一组的试验小区。在每棵树上开割了两个割面。在第一个小区一个割面是用新的刺激素采脂,而第二个割面是采用一般的方法(不用刺激素),在第二个小区第一个割面用新的刺激素割,而第二个割面——采用亚硫酸盐碱液酒糟。用化学割刀,一天内在所有的割面进行采脂,采脂间隔期3-3.5天。用新的刺激素采割,每个割面上松脂产量比一般采脂方法增加190-195%,而采用亚
In the Ulyanovsk Forest Administration of the Soviet Union, a group of grease-extraction brigade, applied a new pine resin secretion stimulating cord (-) studied by the Central Forest Research Laboratory. In 1969 there were two pilot communities of 50 trees. Cut two cut faces in each tree. In the first cell a cut surface is a new stimulant liposuction, while the second cut surface is the general method (without stimulating hormone), in the second district first cut surface with a new stimulus cut , While the second cut surface - using sulfite lye lees. With a chemical cutter, one day in all facets for lipids, lipids interval 3-3.5 days. With new stimulating hormone cutting, the yield of turpentine on each cut surface is increased by 190-195%