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本文主要研究了酒糟、甜菜糖渣等4种有机物料对黑钙土的培肥效果。结果表明:酒糟的碳氮比适宜,可以直接施用;而甜菜糖渣在施用前必须进行预处理。两者对提高土壤肥力和作物产量均有好的效果,但也各有特点。酒糟以增氮为主,复合系数较高,对紧结合态腐殖质和胡敏酸的贡献较大;而甜菜糖渣则以增磷为主,复合系数较小,对提高松结合状态腐殖质和富里酸更为有利。
This paper mainly studied the effect of four kinds of organic materials, such as distillers grain and beet sugar residue, on the fertilizing effect of Chernozem. The results showed that the carbon and nitrogen ratio of distillers grains was suitable and could be applied directly. However, the beet sugar residue had to be pretreated before application. Both have good effects on improving soil fertility and crop yields, but also have their own characteristics. The main nitrogen-based distillers grains with higher complex coefficient contributed to tight combined humus and humic acid, while beet sugar residue was dominated by increasing phosphorus with smaller compound coefficient, Acid is more favorable.