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Biogas residue fertilization application of biogas residue, the general should be combined with the growth of fruit trees to determine the amount of fertilizer and operating methods, growth potential difference should be re-applied, grow well should lightly applied. In the first half of November, the digester was mixed with straw and soil, and was layered into the fertilizing ditch outside the canopy. The young trees each had 4 to 8 kilograms, and the hanging fruit trees were about 50 kilograms per plant, plus 0.5 kilograms of phosphoric acid. Hydrogen potassium.
When biogas fertilizer is applied to biogas slurry in the orchard, it must be diluted with water for 2 to 3 times before use to prevent the roots from being burned when the concentration is too high. Generally, the biogas slurry can be applied during the growth period (from March to August) by digging a shallow trench of 10 to 15 centimeters around the canopy, 15 kilograms per plant, and then diluting it and then pouring or applying the biogas slurry and then using appropriate amount of water. Dripping, so as not to burn the roots. Every 15 to 30 days, apply 1 slurry of biogas fertilizer, focusing on the use of fertilizers and fruit fertilizers.
Biogas slurry foliar dressing can be used for foliar dressing in the growth period of fruit trees. The specific method is to take biogas slurry from normal production of gas for more than one month, and the concentration is generally controlled at 50% to 60%. If the temperature is low, When it is an old leaf, it is not necessary to add water. When spraying biogas slurry, focus on the back of the leaf, if the fruit trees can be sprayed with 0.1% urea in the biogas slurry; for fruit trees with young trees or fruit bearing, add 0.2% to 0.5% of phosphorus and potassium fertilizer to the biogas slurry. Promote the formation of flower buds and fruit enlargement in the following year. Spray once every 7 to 10 days and spray it several times.
Biogas liquid pest control In the period of more pests, choose high temperature afternoon, remove the biogas slurry immediately and use gauze filter (parking time should not exceed 1 hour) after spraying, can control pests, if adding appropriate detergent in biogas slurry Better results. By using this method to control aphids and red spiders of fruit trees, pests can be reduced by more than 50% within 48 hours.
operation.
How to use biogas fertilizer for fruit trees
The use of biogas fertilizer in fruit trees can increase the fruit setting rate by more than 5%, and increase the yield by 10% to 30%. It can increase fruit quality, increase fruit color, increase the value of fruit-shaped products, and can also reduce fruit tree pests and diseases, reduce costs, and have significant economic benefits. Its practical technical points are as follows: