I. Foliar application of biogas slurry
1. Spray effect Biogas slurry is rich in nutrients and is a kind of liquid organic fertilizer. It is used for the fertilization of fruit leaves and has a quick effect and high utilization rate. Within 24 hours after application, the leaves can absorb 80% of the spray volume, which in turn can supplement the fruit tree growth needs of nutrients. Fruit trees can be sprayed with biogas slurry at various growth stages. Spraying biogas slurry during the growth period of the fruit trees can enhance photosynthesis, which is conducive to the formation and differentiation of flower buds. Spraying biogas slurry at flowering stage can ensure the required nutrition and increase fruit setting rate; fruit growth. Spraying biogas slurry during the period can promote fruit enlargement and increase yield. The biogas slurry sprayed from the leaf surface should be taken from the normal gas-generating digester discharge chamber and filtered or clarified before use. According to different conditions such as climate and tree vigor, pure liquid can be directly sprayed, diluted or sprayed with pesticides and chemical fertilizers.
2. Spraying pure biogas slurry with pure biogas slurry can provide abundant nutrients for fruit trees that need nutrients. Therefore, pure biogas slurry should be sprayed on fruit trees with poor growth, long age, and fruit set. Spraying fruit trees with pure biogas slurry has obvious killing effects on red, yellow spiders, spines, locusts, and locusts. The killing rate is over 94%. The spraying effect of pure biogas slurry is better than that of the dilution liquid.
3. Dilution of biogas slurry. According to the climate and the growth of trees, it is sometimes necessary to dilute the biogas slurry. Especially in the high temperature weather conditions, it is not appropriate to use pure biogas slurry, it should be diluted with appropriate amount of fresh water and sprayed.
4. The combination of medicinal fertilizers and sprays should be used as pest control for fruit trees for a short period of time. The addition of a suitable amount of pesticides to the biogas slurry is very effective. According to the nutritional needs of the tree, with a certain amount of fertilizer spray, can supplement the nutritional needs of fruit trees. For large annual fruit production, 0.05% to 0.1% urea can be added; for young fruit trees and those with excessive growth or fruiting in the current year, spraying with 0.2% to 0.5% of phosphorus and potassium fertilizers is beneficial to the robustness of the tree.
Second, the application of biogas slurry at the root
1. Effect of fruit trees Long-term use of biogas slurry root fertilization, strong tree vigor, dark green leaves, significantly reduced pests and diseases, clean shoots, young fruit off less, pure fruit taste, yield higher than the application of chemical fertilizers or organic fertilizer.
2. Fertilization methods Different fertilization methods are used for different tree ages. The saplings are fed with biogas fertilizer and expanded in order to circularly open the ditch with the vertical projection of the outside diameter of the crown. The ditch should not be too deep, generally 10 to 35 centimeters deep, covered with soil after applying 20 to 30 centimeters wide, and the fertilizer should be dislocated every year afterwards. Caverns, and expand outward each year to increase the absorption range of the roots and give full play to the fertilizer effect. Hanging fruit trees into a radial ditch, and rotation dislocation, the ditch should not be too deep, so as not to damage the roots, after fertilization cover soil.
Third, pay attention to matters
1. Biogas slurry must be taken from a biogas digester that normally produces more than 3 months of gas production.
2. Do not spray at high temperatures at noon to prevent burning of the blades.
3. The foliar spray should be applied to the leaves as far as possible. Because the foliage is thick in the stratum corneum, the back of the leaf is full of small pores and it is easy to absorb.
4. The amount of spraying should be increased or decreased, as appropriate, depending on the situation of tree vigor.
1. Spray effect Biogas slurry is rich in nutrients and is a kind of liquid organic fertilizer. It is used for the fertilization of fruit leaves and has a quick effect and high utilization rate. Within 24 hours after application, the leaves can absorb 80% of the spray volume, which in turn can supplement the fruit tree growth needs of nutrients. Fruit trees can be sprayed with biogas slurry at various growth stages. Spraying biogas slurry during the growth period of the fruit trees can enhance photosynthesis, which is conducive to the formation and differentiation of flower buds. Spraying biogas slurry at flowering stage can ensure the required nutrition and increase fruit setting rate; fruit growth. Spraying biogas slurry during the period can promote fruit enlargement and increase yield. The biogas slurry sprayed from the leaf surface should be taken from the normal gas-generating digester discharge chamber and filtered or clarified before use. According to different conditions such as climate and tree vigor, pure liquid can be directly sprayed, diluted or sprayed with pesticides and chemical fertilizers.
2. Spraying pure biogas slurry with pure biogas slurry can provide abundant nutrients for fruit trees that need nutrients. Therefore, pure biogas slurry should be sprayed on fruit trees with poor growth, long age, and fruit set. Spraying fruit trees with pure biogas slurry has obvious killing effects on red, yellow spiders, spines, locusts, and locusts. The killing rate is over 94%. The spraying effect of pure biogas slurry is better than that of the dilution liquid.
3. Dilution of biogas slurry. According to the climate and the growth of trees, it is sometimes necessary to dilute the biogas slurry. Especially in the high temperature weather conditions, it is not appropriate to use pure biogas slurry, it should be diluted with appropriate amount of fresh water and sprayed.
4. The combination of medicinal fertilizers and sprays should be used as pest control for fruit trees for a short period of time. The addition of a suitable amount of pesticides to the biogas slurry is very effective. According to the nutritional needs of the tree, with a certain amount of fertilizer spray, can supplement the nutritional needs of fruit trees. For large annual fruit production, 0.05% to 0.1% urea can be added; for young fruit trees and those with excessive growth or fruiting in the current year, spraying with 0.2% to 0.5% of phosphorus and potassium fertilizers is beneficial to the robustness of the tree.
Second, the application of biogas slurry at the root
1. Effect of fruit trees Long-term use of biogas slurry root fertilization, strong tree vigor, dark green leaves, significantly reduced pests and diseases, clean shoots, young fruit off less, pure fruit taste, yield higher than the application of chemical fertilizers or organic fertilizer.
2. Fertilization methods Different fertilization methods are used for different tree ages. The saplings are fed with biogas fertilizer and expanded in order to circularly open the ditch with the vertical projection of the outside diameter of the crown. The ditch should not be too deep, generally 10 to 35 centimeters deep, covered with soil after applying 20 to 30 centimeters wide, and the fertilizer should be dislocated every year afterwards. Caverns, and expand outward each year to increase the absorption range of the roots and give full play to the fertilizer effect. Hanging fruit trees into a radial ditch, and rotation dislocation, the ditch should not be too deep, so as not to damage the roots, after fertilization cover soil.
Third, pay attention to matters
1. Biogas slurry must be taken from a biogas digester that normally produces more than 3 months of gas production.
2. Do not spray at high temperatures at noon to prevent burning of the blades.
3. The foliar spray should be applied to the leaves as far as possible. Because the foliage is thick in the stratum corneum, the back of the leaf is full of small pores and it is easy to absorb.
4. The amount of spraying should be increased or decreased, as appropriate, depending on the situation of tree vigor.
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