Precautions for the application of pollution-free vegetable biogas fertilizer

The biogas fertilizer is divided into two types: biogas residue and biogas slurry. A 10 cubic meter biogas tank produces 4 tons of biogas residue per year, and 6 tons of biogas slurry, which can supply 1,500 square meters of vegetables for the whole year. The biogas residue has high nutrient content, rich in organic matter and more humic acid, which plays an important role in improving soil. Biogas residue is suitable for use as a base fertilizer or top dressing for vegetables. Long-term use can make the soil loose and fertility enhanced.

The application of biogas residue and biogas slurry in the production of pollution-free vegetables pay attention to the following matters: biogas residue is used for top dressing. The fermented biogas residue is a highly efficient and quick-acting decomposed organic fertilizer, which can be used as a top dressing for various vegetables at any time. The top dressing is generally chased by a pit, and after the chase is finished, the soil is sealed. Tomatoes, cucumbers, eggplants, melons and other vegetables, the amount of fertilizer per mu is 1000~1500 kg.

Biogas slurry is used for top dressing. When the biogas slurry is used for vegetable topdressing, the mixed biogas slurry proposed from the discharge material is generally mixed with the water and biogas slurry ratio 1:2, and after the pursuit, the biogas fertilizer is submerged into the soil, and then the water is poured again. The amount of fertilizer per mu is about 2000 kg, which can increase the leaf menu yield by more than 30%.

Biogas slurry is used for vegetable leaf top dressing. When the biogas slurry is topdressed on the foliar surface, the extracted biogas slurry must be filtered through the slag. The biogas slurry can be sprayed on the leaf surface of various vegetables directly with a sprayer. The spray amount of the mu is 150~200. kilogram. Spray water again about 20 hours after spraying, and apply foliar application every 10 days to increase vegetable yield by about 30%.

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