摘要
根据'低频率、低浓度、短周期、短割线、复方糊剂、综合生理指标监控和产胶动态分析'的技术路线,设计试验方案.以各地种植面积最大的橡胶树无性系为参试材料.试验全部采用(s/4+s/4 ↑)d/5+ET(乙烯利)割制,10 d为一涂药周期,每周期割2刀.对照采用各地生产上最常规的(s/4+s/4 ↑)d/4+ET和s/2d/3+ET两种割制.4 a的多点试验结果表明:①d/5低频割胶制度比对照提高采胶生产率25%～67%;②d/5割制比对照增产7.3%;③d/5割制橡胶树的生理状况正常,死皮等副作用不明显,干胶质量达到国家标准:④经济社会效益显著,平均每公顷每年新增产值1033.5元(新增利税868.5元),胶工年均收入7 227元,比对照胶工的4 722元高出2 505元,增幅达53%.
year experiments in many locations showed that d/5low frequency tapping system in creased exploitation productivity by25.0%~66.7%,compared to the d/3and d/4tapping systems (CK)that were widely used in production.The d/5tapping system increased yield by7.3%as com-pared to the controls.Physiological conditions of the rubber trees tapped under the d/5tapping sys-tem were normal without obvious side effects such as tapping panel dryness.Dry rubber quality reached the national standard.Economic and social benefits were remarkable.The increased output value was RMB1033.5yuan/(hm 2· year),with an increase of benefit and tax of RMB868.5yuan.The annual average in come of tapping workers was RMB7227yuan which was RMB2505yuan more than the control(RMB4722yuan),increasing by53%.
出处
《热带作物学报》
CSCD
2002年第3期12-20,共9页
Chinese Journal of Tropical Crops
