Biogas fertilizer is a kind of high-efficiency organic fertilizer. It can use biogas fertilizer to grow vegetables, which can realize resource recycling, save cost, increase fertilizer efficiency, increase production, prevent pests and diseases, reduce pesticide use, and develop pollution-free vegetable production. An effective way.

1. Biogas residue as base fertilizer. Using transplanted seedlings for vegetables, basal fertilizers were applied by acupuncture. When the seedlings are transplanted, about 2000 kg of decomposed biogas residue is applied to the planting hole for each mu of land and mixed with the soil excavated by the open hole to be planted. For vegetables planted on-demand or in large areas, basal fertilizers are generally applied in the method of seeding. For fruit and vegetable vegetables, such as pumpkins, melons, cucumbers, tomatoes, etc., generally large-scale large-scale fertilizer method, 3000 kilograms of biogas residue per acre, immediately after planting watering.

2. Biogas slurry is used as top dressing. Biogas slurry used as topdressing generally adopts two methods: root pouring and foliar spraying. The amount of biogas slurry poured from the root can be determined according to the variety of vegetables. The general dosage is 500-1000 kg per mu. The fertilization time should be sunny or late in the evening, and it should not be applied when it is raining or when the soil is too wet.

The foliar sprayed biogas slurry must be gauze filtered before use. In the period of vegetable young leaves, biogas slurry should be diluted with 3 times water, sprayed with dry dew, sprayed in the evening in summer, and not sprayed at noon or rain. Leafy vegetables can be fertilized during any growing period of vegetables, and biogas can also be sprayed in combination with disease prevention and extermination.

3. Biogas carbon dioxide fertilization method. 50 m long sheds are equipped with 1 biogas lamp or 1 biogas stove. When warming up in a vegetable greenhouse with a biogas lamp, you can light the lamp every morning from 5:30 to 8:30.

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