The economic benefits of greenhouse biogas fertilizer increase

First, base fertilizer. In the dormant period of the nectarine tree, that is, one month before the baiting, the biogas manure is taken as 5 times fresh water and directly poured into the garden ditch around the canopy.

Second, top dressing. After the nectarine trees have fallen for 20 days, take the marsh fertilizer five times more water and apply it to the tree ditch's operation ditch and then cover the soil.

Third, foliar spray. 1 month before nectarine picking, choose to be sunny or cloudy on a windless day (preferably in humid mornings or early evenings, not at high temperatures during rainy days or sunny afternoons). 10 times of fresh water diluted (so as not to cause damage) for foliar spray. Foliar spraying requires re-spraying the back of the leaves.

Fourth, prevent fruit tree pests. Take 50 kilograms of biogas slurry, filter (place for 2 to 3 days), spray directly, once in 10 days, spray twice or three times in the peak season of Peach spider mites, aphids and other pests. If the temperature is below 25°C, it can be sprayed all day; if the temperature exceeds 25°C, it should be done after 5pm. If we add 1/1000 to 1/3000 of the sweep in the biogas slurry, the extermination of eggs is better, and the duration of efficacy is more than 20 days. Under normal circumstances, the red and yellow spiders were inactivated within 3 to 4 hours, and 98.5% died within 5 to 6 hours.

Fifth, pay attention to matters. 1 The biogas slurry can be applied by roots or deep in the trough; the biogas residue should require deep troughs and deep methods: drip along the canopy, excavate the annular trench around or dig out 2 to 3 radiations from the base. The ditch is 30 cm wide, 30 cm deep and 80 to 120 cm long. Apply fertilizer immediately after fertilization. 2 Combine the growth of fruit trees to determine the amount of fertilizer and operating skills. The difference in growth potential should be re-applied, the growth is good, the old tree is heavy, and the juvenile tree is light. 3 When using biogas slurry to spray the leaves of fruit trees, biogas digesters must be used in the discharge room of the biogas digesters that normally produce gas for more than three months, and they must be clarified and filtered for 2 to 3 days. 4 The amount of biogas fertilizer applied to peach trees in the greenhouse cannot be too large, generally less than that of ordinary pig manure. If blindly applying large amounts of biogas fertilizer, it will lead to peach tree growth, shade between the rows, resulting in reduced production. 5 General biogas residue should be used as base fertilizer. If it is used as top dressing, it should be used after composting. Biogas slurry should be used as top dressing, or both can be mixed as base fertilizer or top dressing.

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