Biogas slurry-mostly made of cow dung, rabbit dung and chicken dung by mixed fermentation, is tasteless after fermentation, and its fertilizer efficiency is more than 10 times that of ordinary chemical synthetic fertilizer. Water quality characteristics are easily absorbed by plants, and unlike chemical fertilizers, excessive use of biogas slurry will not burn seedlings. Vegetables, as the first choice fertilizer for green ecological planting, are generally supplied directly. Biogas slurry has the function of expelling insects and killing insects, and the mortality rate of larvae and eggs is over 90%. It is a green biological insecticide.
In the process of using biogas slurry, if the dosage is not well controlled, it will not cause seedling burning, which is one of the incomparable places for ordinary chemical synthetic fertilizers. Biogas slurry contains a variety of plant growth nutrients, rich amino acids, a variety of growth hormones and vitamins. With the sustainable development of ecological agriculture, people's enthusiasm for developing biogas ecological agriculture is getting higher and higher, and the utilization of biogas slurry is gradually being developed and utilized by the masses. Through bioengineering, a set of original biogas slurry bio-fermentation technology was explored. The patented products with pure microbial strains, environmental protection and no pollution, low operating cost, small floor space and low energy consumption were recognized and praised by the market, and obtained the registration number of the Ministry of Agriculture. Biogas slurry is a well-known bio-organic fertilizer, which has both quick-acting and long-acting effects. It can not only completely replace chemical fertilizer, but also be the best fertilizer for producing organic food. Biogas slurry is rich in nitrogen, phosphorus, potassium, various amino acids, vitamins, protein, gibberellin, auxin, sugar, nucleic acid and antibiotics, as well as active resistant substances such as butyric acid, indoleacetic acid and vitamin B 12. Therefore, it has dual functions of promoting crop growth and preventing diseases. The role of biogas slurry as fertilizer The water quality characteristics of biogas slurry make crops absorb quickly, which has both quick and slow effects. The results showed that the crops grew healthily, the leaf thickness and single fruit weight increased significantly, and the quality improved significantly. The yield can be increased by about 15-35%, and the average soluble sugar is 36%. It has special effects on crop element deficiency, such as lobular disease; At the same time, it can improve the cold resistance physiology and freezing resistance, which is called "the king of fertilizer" and the best fertilizer for producing pollution-free green high-grade organic food with the most complete and balanced crop nutrition in the world. Used to soak seeds; Soaking seeds improves germination rate. Used to control pests and diseases; Butyric acid in organic acids and gibberellin, indoleacetic acid and vitamin B 12 in plant growth hormones contained in biogas slurry can destroy the cell membrane and protein in unicellular bacteria and effectively control the reproduction of harmful bacteria. Ammonia, ammonium salts and antibiotics in biogas slurry can inhibit and seal the respiratory system of diseases and insect pests such as red spider, thus achieving the functions of expelling insects, killing insects and sterilizing. Used for fruit tree rot, ring rot, dry rot, root rot, mottled defoliation, mold heart disease, brown spot, powdery mildew, black spot and red spot; Pear scab; Grape black pox, white rot, gray mold, downy mildew, anthracnose; Cherry leaf perforation, leaf spot and gummosis; Almost all fungal and bacterial diseases, such as seedling blight and sheath blight of trees and vegetables, and fields have obvious control effects. It has obvious control effect on almost all pests and diseases, such as aphid, red spider, white spider, ground maggot, moth egg, cabbage caterpillar, beet armyworm, cotton bollworm and so on. Crops that use biogas slurry all the year round can reduce the number of pest control (at least three times). And it has no pollution, no residual poison and no drug resistance, so it is called "biological pesticide". Grape leaves begin to unfold and end before defoliation, once every 7- 10 days. 1 biogas slurry and 1 clear water. After spraying, the fruit expands evenly, which can increase the yield by about 10% and control pests and diseases.