Biogas fertilizer is a kind of organic fertilizer with complete nutrition, no pollution and no residue. Many farmers now build biogas digesters and save energy. At the same time, the application of biogas fertilizer to fruit trees has the advantages of economy, environmental protection, and high efficiency, and is increasingly valued by a large number of farmers. Now we introduce the comprehensive utilization technology of biogas fertilizers:

The effect of biogas fertilizer on jujube tree, in addition to abundant nitrogen, phosphorus, potassium and other macroelements, biogas fertilizer also contains trace elements such as boron, copper, iron, manganese, calcium, zinc and other elements that play an important role in the growth of jujube trees. A lot of organic matter, a variety of amino acids and vitamins. Jujube trees are used to apply biogas fertilizer, which can meet the nutrients needed for the growth of jujube trees, and the nutrients are easily absorbed and utilized; increase the organic matter in the soil, and can improve the soil structure, improve the ability of water conservation and fertilizer and drought resistance, and increase the output of jujube trees (increased yield). The rate of about 18%), enhance resistance, make the pest significantly reduced, the fruit size is uniform, bright color, delicious and sweet.

Fertilization method. There are two kinds of commonly used biogas fertilizer, one for the base fertilizer biogas residue, and the other is for the top dressing and foliar fertilizer biogas slurry.

base fertilizer. Shiji Fei should be carried out in the fruitless period. Generally, in the beginning of April or the end of November of each year (during digester discharge or large refueling), the residue is applied as base fertilizer. According to the size of the tree, each jujube tree applies biogas residue 15-30. Kilograms, the specific method is to dig 4? 6 pits around the jujube tree, the depth of 30? 40 cm, fertilization, irrigation, water infiltration after the timely filling and filling, in order to protect fertilizer effect and prevent frostbite roots.

top dressing. The application time of biogas slurry for topdressing was in the germination period in May, fruiting and fruiting period in June and August, and the fruit period in September. It was applied 3-5 times a year and applied about 40 kilograms of biogas slurry per plant. The specific method was: The roots are dug into strips or digging 4 to 6 pits around the trees. They can also be excavated into circular-arc grooves with a depth of 30 cm and a width of 20 cm. During this period, fertilization is conducive to flower bud differentiation, increasing the number of effective flowers, supplementing more nutrients, increasing fruit setting rate, and promoting fruit growth.

Foliar spraying fertilizer. Fertilizer spraying can be carried out in the bud, flowering, fruit, and fruit stages. The amount of each plant is generally 10 to 15 kg. The canopy is sprayed on the canopy of the biogas slurry that has been purified and filtered for more than one month. Spray 10 to 20 days 1 time, to the back of the leaves wet but the fluid is not suitable for dripping. Foliar spray fertilizer can make jujube tree leaves thicker, darker color, significantly reduce the occurrence of diseases and insect pests, and enhance the tree stress resistance. Spraying during fruit growth can increase yield and improve fruit quality.

Precautions. 1 When biogas residue and biogas slurry are used as base fertilizer and top dressing, they should maintain a certain distance from the roots to prevent excavation and burn of roots. 2 The foliar spraying time is required to be performed in the morning or in the afternoon when the temperature is low. It is not appropriate to spray at high temperature during noon. 3 If pests and diseases occur, pesticides can be sprayed into the biogas slurry. 4 For jujube trees with excessive trees, it is difficult to spray them on the foliage. Attention should be paid to safety.

YT-60

YT-60

YT-60

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