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机构地区:[1]重庆工商职业学院,重庆401520
出 处:《北方园艺》2013年第17期192-195,共4页Northern Horticulture
基 金:国家科技部科技支撑计划资助项目(2012BAD14B01-08)
摘 要:沼气行业近年来发展迅速,其发酵残留物含有丰富的营养物质。发酵后的沼肥在合理施用条件下不仅能显著提高蔬菜产量、改善蔬菜营养品质、增加商品价值;还能提高菜地土壤的有机质含量,增加透水率,提高土壤的保水保肥能力。该文在简要介绍沼气发酵概念的基础上,阐述了沼肥的化学组成,总结了沼肥对蔬菜产量、蔬菜营养品质、外观品质等的影响,分析了沼肥对蔬菜重金属含量、硝酸盐含量和土壤理化性质的影响,以期为沼气行业的健康发展提供参考。The biogas industry developed quickly in recent years and the biogas fertilizer has abundant nutrients after fermentation. The biogas fertilizer can improve the vegetable yield and increase the vegetable quality and value under reasonable application condition. At the same time it could improve the soil organic matter content, increase permeability as well as the soil water-nutrient keeping capacity. On the basis of a brief introduction of the concept of biogas fermentation,the chemical composition of biogas was described,the effect of biogas fertilizer on the vegetable nutritional quality,appearance quality was summarized, and the impact of biogas on vegetable heavy metal content, nitrate content and soil physical and chemical properties was analyzed, in order to provide a reference for the healthy development of biogas industry.
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