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湿度保持蔗田湿度损失经由途径:一是在炎热夏季在土表面蒸发;一是蔗田杂草吸收大量水分。必须防止上述两种情况发生,以降低灌溉费用,增加用水的效能,使甘蔗免受夏旱,在北方邦比哈尔省所试用的各种措施中,用蔗荚覆盖证明最有效果,蔗荚覆盖不仅能保持土壤湿度减轻干旱,并能将有害杂草盖死,增加土壤有机质及防止二点螟及其他害虫对甘蔗的为害。1964年有人比较了蔗荚覆盖与黑聚氯乙烯覆盖的效能,认为在保湿和增产方面黑
Humidity Cane moisture loss through the way: First, evaporation on the soil surface in the hot summer; First, weed cane absorb large amounts of water. The above two conditions must be prevented in order to reduce irrigation costs and increase the efficiency of water use to protect the cane from summer drought. Of all the measures tested in Bihar Province of Uttar Pradesh, covering with sugar cane proved the most effective. Cane Pod coverage not only can maintain the soil moisture to reduce the drought, and weed can cover dead weeds, increase soil organic matter and prevent two borer and other pests on the cane damage. In 1964 some people compared the efficiency of sugar cane coverage and black PVC coverage, that in terms of moisture and yield black