利用稻草碱木素生产肥料的研究

Utilization of Alkali Lignin of Rice Straw as Fertilizer

分析测定了稻草碱木素的腐殖酸含量;利用稻草碱木素研制了多种复合肥料,并进行了粮食作物和蔬菜大田施肥试验。结果表明,稻草碱木素具有较高的游离腐殖酸含量,其活性高,肥效好;用稻草碱木素与其他肥料营养元素配制成的复合肥可提高农作物产量,降低施肥成本。木素用于肥料生产时可以直接利用粗木素,不需提纯。

Humic acid content of alkali lignin of rice straw was determined.Various alkali lignin base compound fertilizers were developed and applied to the fields on trial.The results showed that alkali lignin of rice straw is a good fertilizer raw material.It has high dissociable humic acid content and good fertilizer efficiency.Compound fertilizers made of the alkali lignin and other fertilizer's elements can increase the yields of crops and reduce costs of fertilizer application.Crude alkali lignin can be used to produce compound fertilizer.Lignin utiliza-tion in large amounts could be achieved by applying lignin as fertilizer.