蔗地施用甘蔗酒精发酵液效应研究(英文)

Effects of vinasse on sugarcane field

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, in order to study the effects of vinasse from sugar mill on nutrient contents in soil, sugarcane, and surface water of sugarcane field, 7St/ha vinasse ＋ 0.75t/ha calcium magnesium phosphate and common chemical fertilizer were applied to sugarcane field in Fusui County, Guangxi, which had applied common chemical fertilizer for 10 years （1996-2005）. The results showed that, compared with the origin soil, two fertilizing treatments could increase the contents of nutrients N, P, K and pH of soil significantly, while decrease the content of organic matter significantly. Compared with common chemical fertilizer, applying vinasse ＋ calcium magnesium phosphate could significantly increase the contents of total N and K, available N and K in soil, total K in bagasse and juice of sugarcane, and was beneficial to improve the total P and pH in soil, the yield and sugar yield of sugarcane, and the contents of N, P were far lower than the national safety standard value. Therefore, applying vinasse as base fertilization in sugarcane field could enhance the soil fertility, increase the yield and sugar yield of sugarcane, and had no bad effects on surface water of sugarcane field.