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2006年,对广西扶绥县原施常规化肥10年(1996～2005年)的甘蔗地施用酒精发酵液75t/ha+钙镁磷肥0.75t/ha,研究其对土壤、甘蔗及地表水域养分含量的影响。结果表明,与原始土壤相比较,两种施肥方式都能显著提高甘蔗地土壤氮、磷、钾养分和pH,而显著降低有机质含量。与施用常规化肥相比,混施酒精发酵液与钙镁磷肥可显著提高土壤总N、总K、有效N和有效K含量以及蔗渣和蔗汁K含量,有利于提高土壤总P含量和pH、甘蔗产量和产糖量,塘水N、P养分远低于国家标准限定值。因此,蔗地施用酒精发酵液可以提高土壤肥力、增加甘蔗产量和产糖量,且未对蔗地地表水域造成不良影响。
In 2006, 75t / ha and 0.75t / ha of calcium magnesium phosphate fertilizers were applied to sugarcane fields of Fushui County, Guangxi Province for the past 10 years (from 1996 to 2005) to study its effects on soil, sugarcane and nutrient contents in surface waters influences. The results showed that compared with the original soil, both of the two fertilization methods could significantly increase the N, P, K nutrient and pH of the soil in sugarcane so as to significantly reduce the organic matter content. Compared with conventional fertilizers, the total N, total K, available N and available K, and bagasse and sugar cane K contents were significantly increased by mixing alcoholic fermentation broth and calcium magnesium phosphate fertilizer, which was in favor of increasing soil total P and pH, Sugarcane production and sugar production, pond water N, P nutrients far below the national standard limit value. Therefore, the application of alcoholic fermentation broth in sugarcane field can improve soil fertility, increase sugar cane production and sugar production, and has no adverse effect on surface water in sugarcane field.