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为了提高采脂劳动生产率,促进松香生产发展,广东省林科所、广州林校、龙眼洞林场三个单位按照生产、科研、教学三结合的原则,于1975年组成了化学采脂试验小组。试验地点在广州市郊龙眼洞银屏岭。试验内容有:1.中、长期化学采脂;2.伐前强度采脂。中、长期化学采脂药剂选用乙烯利(2—氯乙基磷酸)和30%烧碱;伐前强度采脂药剂选用硫酸软膏和液体硫酸。试验树共420株。为了便于观察和评定采脂效
In order to improve the labor productivity and the promotion of rosin production, the three units of Guangdong Forestry Science Institute, Guangzhou Forestry University and Longyandong Forest Farm formed a test group for chemical analysis of fat in 1975 in accordance with the principle of combining production, scientific research and teaching. Test site in the suburbs of Guangzhou Longyan Yin Pingling. Test contents are: 1. Medium and long-term chemical liposuction; 2. Pre-cutting strength liposuction. Medium and long-term chemical lipids selected ethephon (2-chloroethyl phosphoric acid) and 30% caustic soda; cutting strength before Liposuction pharmaceutical use sulfuric acid ointment and liquid sulfuric acid. A total of 420 experimental trees. In order to facilitate the observation and assessment of lipid-lowering effect