六十年代中期,广东省植胶区总结了胶工高产稳产的“三看”割胶经验:看物候、看天气、看树情。并初步提出产胶潜力呈“恢复→高→低”的变化规律:割胶生产应采用叶物候稳定后初期浅割,以协调产胶与生长的矛盾;高温多雨盛产期深割,以挖掘产胶潜力;低温长流期浅割,以养树防病。当时,对于产胶潜力变化划分太粗,怎 In the mid-1960s, Guangdong Province, rubber plantation summed up the high yield of plastic workers, “three see” tapping experience: look at the object, see the weather, look at the tree. And initially put forward the changing regularity of “recovery → high → low”. The tapping production should adopt the initial shallow cutting after stable leaf phenology to coordinate the contradiction between production and growth; Potential; low-temperature long-term shallow cutting, to raise trees disease prevention. At that time, for the potential changes in the production of plastic too thick, how