First, increase the mechanism of action Biogas fertilizer is the residue of biogas fermentation, is recognized as a high-quality fertilizer. In addition to abundant nitrogen, phosphorus, and potassium, it also contains trace elements such as boron, copper, iron, manganese, calcium, and zinc that play an important role in the growth of nectarine, as well as a large amount of organic matter, amino acids, and vitamins. . Biogas fertilizer can meet the nutrients needed for nectarine growth, and nutrients are easily absorbed and utilized. At the same time can increase the organic matter in the soil, year after year application can improve the soil structure, improve soil water, fertilizer, drought resistance, improve nectarine production (increased yield of about 20%), enhance resistance, and the fruit size is uniform, bright color , sweet and delicious.
Second, the application of biogas fertilizer method There are two kinds of commonly used biogas fertilizer, one for the base fertilizer biogas residue, the second is for fertilizer and foliar fertilizer biogas slurry. (a) as base fertilizer. Shijifei should be carried out in the fruitless period of nectarines. Normally, biogas residue is used as base fertilizer from January to mid-February or at the end of November (during digester discharge or refueling). According to the size of nectarine tree, each oil Peach tree residue 15 ~ 20 kg. Specific methods: Dig four or six pits around the nectarine tree, depth 30 to 35 cm, fertilize and irrigate (the amount of water is 5 times the amount of biogas slag), and promptly fill the soil after the water is immersed to ensure fertilizer efficiency and prevent Frostbite roots. (b) as fertilizer. The application time of biogas slurry as topdressing is 3-5 times per year for nectarine germination, flowering, fruiting, and fruiting, and each application of biogas slurry is 10-20 kg. Specific methods: in the roots of nectarine dug into a ditch or digging around the tree 4 to 6 pits, can also be dug into a circular groove, deep 30 cm, width 20 cm, take biogas slurry to 5 times the water applied to In the trenches, the soil shall be covered immediately after the biogas slurry has been dried. (c) as foliar fertilizer. The foliar spraying of biogas fertilizer can be carried out in the nectarine sprouting, flowering, fruiting, and fruiting stages. The clarified and filtered middle biogas slurry is used to spray 10 times of fresh water on the crown and spray it once every 10 to 20 days. The back of the leaf is soaked but the fertilizer solution does not flow down. Foliar spray of biogas slurry can make the nectarine leaves thicker, darker in color, and the occurrence of diseases and insect pests is significantly reduced. Combining the growth of nectarine trees to determine the amount of fertilizer, in general, the trees that are growing poorly are being replanted and the trees that grow well are being used lightly; the aged trees are being replanted, the juvenile trees are being cast lightly, and the fruitful trees are being replanted. If there is less fruit, it will be lightly applied. Spraying biogas slurry during the growing period of nectarine fruit can increase yield and improve quality.
Third, pay attention (a) the use of biogas slurry spraying nectarine leaf surface must be used normally gas biogas digester biogas digester more than 3 months, and need to clarify the filter and place 2 to 3 days; not fully fermented Biogas fertilizer cannot be applied. (b) When using biogas fertilizers, keep a certain distance from the roots to prevent excavation and burn the roots. (3) Biogas slag used as basal fertilizer shall be timely covered with soil after application to prevent evaporation. (4) The foliar spray of biogas fertilizer should be carried out in the morning or in the afternoon when the temperature is low, and should not be carried out during the noon high temperature period. (E) For the use of foliar fertilizer, according to the concentration of biogas slurry, a reasonable ratio of water should be determined so as to avoid causing damage. Spray the foliage should focus on the back of the leaf.
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