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利用沼渣、沼液栽培温室生菜不仅产量高、品质好,而且抗病、虫,抗逆性强。沼渣是有机物经沼气池制取沼气后的固体残留物,含有丰富的有机质和腐植酸,能明显地改善土壤的理化性能,培肥地力,是迟效、速效兼备的无公害肥料。在蔬菜生产上主要是作底肥用,也可进行追肥。沼液是有机物经沼气池制取沼气后的液体残留物,它不仅含有作物生长所必需的氮、磷、钾、微量元素、氨基酸等多种营养物质,而且含有丁酸、吲哚乙
Use of biogas residue, biogas cultivation greenhouse lettuce not only high yield, good quality, but also disease resistance, insect resistance, strong resistance. Biogas residue is a solid residue after the biogas preparation of organic matter by biogas digesters. It is rich in organic matter and humic acid and can obviously improve the physical and chemical properties of soil and fertility of fertilizers. It is a pollution-free fertilizer with both delayed and quick-acting effects. In the vegetable production is mainly used as base fertilizer, but also for top dressing. Biogas slurry is a liquid residue after organic matter is biogas taken from biogas tank. It contains not only nitrogen, phosphorus, potassium, trace elements, amino acids and other nutrients necessary for crop growth, but also contains butyric acid, indole B