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甘蔗收获后,将蔗叶清出田外,沤制成堆肥,然后施回田间,这比就地一把火烧掉蔗叶,对甘蔗产量的提高和土壤肥力的累积更加有利.但在海南岛蔗区劳动力比较紧张,又以国营农场为甚,因此长期以来都是将蔗叶付之一炬,烧掉了事(烧掉蔗叶除了省事而外,还往往给人以一种错觉,以为可给土壤添增钾素,其实可溶性钾在雨量充沛的南方表土层中存留时间是极其短暂的)。
After the sugarcane was harvested, the sugarcane leaves were cleared out of the field and mixed into compost, which was then applied back to the field, which was more advantageous than the burning of sugarcane leaves on the spot and the increase of sugarcane production and accumulation of soil fertility. However, in Hainan The workforce in the island’s sugarcane area is rather strained and the state farms are so staggering. For a long time, sugarcane leaves have been burned and burnt down. (In addition to being economically burnt, sugarcane leaves tend to give people an illusion that they can give Soil increases potassium, in fact, soluble potassium in the abundant rainfall in the South surface soil retention time is extremely short).