Application of Biogas Fertilizer on Fruit Trees

Pollution-free green fruit is the darling of the fruit market. In addition to the rigid requirements of soil and environment, the production of pollution-free green fruits is particularly important in the application of organic fertilizers and the promotion of biological control technologies in the production of fruit safety products. The application of biogas fertilizer to fruit trees has the advantages of economy, environmental protection, and high efficiency, and is increasingly valued by the majority of farmers.

I. Composition and mechanism of biogas fertilizer

Biogas manure is a high-quality, high-efficiency organic fertilizer with high and complete nutrient content. It is rich in essential elements such as nitrogen, phosphorus, and potassium, as well as trace elements such as boron, copper, iron, manganese, zinc, antimony and bismuth. It is widely applied to apples, peaches, pears, grapes, vegetables, fruits. The application of biogas fertilizer to fruit trees can improve the quality of flower bud differentiation, make the fruit trees evenly distributed, the leaves are thick green, the fruit size is uniform, the gloss is good, the sweetness is high, the tree vigor is strong, and most of the germs and eggs can be killed and the fruit tree resistance can be improved. It is an ideal fertilizer for the production of non-polluted fruit products because it has no pollution, no residue, and no drug resistance.

Biogas fertilizer is divided into biogas slurry and biogas residue. Biogas slurry contains a variety of biologically active substances, such as amino acids, trace elements, plant growth stimulating hormones, B vitamins, certain antibiotics, etc. Among them, butyric acid in organic acids and gibberellic acid, indole acetic acid and vitamins in plant hormones. B12 has a significant inhibitory effect on pathogens. The ammonia and ammonium salts in biogas slurry and certain antibiotics have a direct effect on pests in fruit trees. Biogas slurry has high soluble nutrient content, complete nutrients, and is easily absorbed by fruit trees. It is suitable for foliar spraying. Biogas residue is rich in organic matter and high humic acid, which plays an important role in improving the soil. It is suitable for use as base fertilizer and topdressing fertilizer. Long-term use can make soil loose, increase fertility, and increase strain production by 8%-10%. , And can improve the long-term use of fertilizer caused by soil consolidation phenomenon. After the raw materials in the biogas residue are applied to the orchard, they continue to ferment in the ground to release fat, which has the dual effects of quick-acting and slow-effect. Nitrogen, phosphorus, potassium and other elements can meet the needs of fruit tree growth and make the fruit tree vigor. Strong, strong disease resistance, good flower bud differentiation, consistent shoots, thick green leaves, uniform fruit size, good gloss, high sweetness.

Second, the use of biogas slurry

1. Pouring. Mainly used for top dressing of fruit trees, it has the advantages of low work intensity and easy operation. Combine the fruit trees with irrigated biogas slurry to make the nutrients in the fertilizer mixed with the water and apply it to the soil, which is beneficial to the absorption of the roots of the fruit trees. The size of the fruit tree is 30-60 kg per plant. The orchard with drip irrigation and infiltrating irrigation systems can be watered and fertilized synchronously, as long as small modifications are made to the piping system, and a biogas tank and a mixing valve can be added to achieve a multiplier effect.

2. Sprinkle. Generally used as top dressing, the slurry is sprinkled on the surface of the soil, combined with cultivating tillage tillage, in order to facilitate the combination of biogas slurry and soil, so that nutrients adsorbed on the soil to prevent loss of fertilizer. Sprinkle application more than 10-15 days before flowering and after fruit picking, with 20-50 kilograms per plant.

3. Spray. Select a biofermentation solution that has been fully decomposed and fermented, filter it, clarify it, and spray directly on the back of the leaves with a sprayer. The nutrient rich in biogas slurry is easily absorbed by fruit trees and is suitable for foliar spraying. The effect is better than chemical fertilizers. Foliar spraying can be carried out throughout the growing season, especially at the flowering stage and fruit enlargement stage. It has obvious effect of increasing yield and preventing disease. It can effectively control locusts, mites, cockroaches, etc., with chemical fertilizers, pesticides, etc. The growth agent application effect is better. The spraying of fruit trees usually starts at the fruit setting stage, and the spraying concentration begins with one slurry of three parts of fresh water, and then successively decreases to two parts of water and one part of water until it is not water. Choose morning dew and spray on a sunny afternoon, avoid high temperatures and noon, spray once every 7-15 days, and stop spraying 20-30 days before harvest.

Third, the use of biogas residue

1. Deeply applied. To apply basal fertilizer to fruit trees, apply a hole or planting under the canopy of a fruit tree with a depth of 30-40 cm. Apply 40-80 kg per plant, apply 300 grams of compound fertilizer, and cover the soil after application. Fertilize after fruit picking, halve the amount of biogas residue and avoid the growth of autumn shoots and autumn shoots.

2. The production of biogas rot fertilizer. The biogas residue is piled together with the soil, a layer of soil and a layer of biogas residues are piled into a round table shape. The stack is used after 15-20 days. It is applied during fruit enlargement, and the application amount per plant is 30-50 kilograms, and the yield increase effect is obvious.

Fourth, the application of precautions

1. The biogas slurry should be clarified and filtered to prevent it from clogging the sprayer. The sprayer should have good sealing so as not to splash or leak and soil the body.

2. The concentration of biogas slurry should not be too large. When applying foliar fertilizer, add 3 parts water to a biogas slurry, and spray the original liquid when controlling pests and diseases.

3. When spraying, take the back of the leaf as the weight to facilitate absorption.

4. Spray time. After the dew is dry in spring and autumn, it is better to do it in the summer evening. Do not spray it until high noon and heavy rain at noon.

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