Techniques for increasing the yield of nectarine by applying biogas fertilizer

I. Mechanism of increasing production The biogas fertilizer is the residue of biogas fermentation and is recognized as a high-quality fertilizer. In addition to abundant elements such as nitrogen, phosphorus and potassium, it also contains trace elements such as boron, copper, iron, manganese, calcium and zinc which play an important role in the growth of nectarine, as well as a large amount of organic matter, various amino acids and vitamins. . The biogas fertilizer can meet the nutrients needed for the growth of nectarine, and the nutrients are easily absorbed and utilized. At the same time, the organic matter in the soil can be increased. The application of the soil can improve the soil structure, improve the soil water retention, fertilizer conservation and drought resistance, increase the nectarine yield (increased yield by about 20%), enhance the stress resistance, and the fruit size is uniform and the color is bright. It is delicious and sweet.

Second, the application of biogas fertilizer methods There are two commonly used biogas fertilizer, one is the biogas residue for the base fertilizer, and the other is the biogas slurry for topdressing and foliar fertilizer. (1) As a base fertilizer. The application of the base fertilizer should be carried out in the fruitless period of the nectarine. Generally, the biogas residue is applied as the base fertilizer in the period from January to mid-February or at the end of November (during the biogas tank discharge or refueling). According to the size of the nectarine tree, each oil is used. Peach trees apply 15 to 20 kg of biogas residue. Specific methods: 4 to 6 pits are dug around the nectarine tree, 30-30 cm deep, fertilized, and watered (the amount of water is 5 times of the amount of biogas residue). After the water is infiltrated, fill the soil in time to ensure fertilizer efficiency and prevent it. Frostbite tree roots. (2) For topdressing. The application time of the biogas slurry for top dressing is 3 to 5 times per year in the germination, flowering, fruit-bearing and strong fruit period of nectarine, and 10-20 kg of biogas slurry is applied per plant per plant. Specific methods: digging into strips in the roots of nectarines or digging 4 to 6 pits around the trees, or digging into arc-shaped grooves, 30 cm deep and 20 cm wide, taking biogas slurry to apply 5 times of clear water In the ditch, the soil is covered in time after the biogas slurry has been infiltrated. (3) For foliar fertilizer. Foliar application of biogas fertilizer can be carried out in the germination, flowering, young fruit and strong fruit stage of nectarine. The clarified and filtered middle layer of biogas slurry is sprayed on the crown of 10 times of water and sprayed every 10 to 20 days. The back of the leaf is soaked but the fertilizer does not flow downward. Spraying the biogas slurry on the leaf surface can make the nectarine leaves thicker, the color becomes darker, and the occurrence of diseases and insect pests is significantly reduced. Combining the growth of nectarine trees to determine the amount of fertilization, in general, the tree with long potential difference is reapplied, the tree with good growth is lightly applied; the tree of aging is reapplied, the young tree is lightly applied; the tree with more fruit is reapplied, Less trees are lightly applied. Spraying biogas slurry in the growth period of nectarine fruit can increase yield and improve quality.

III. Precautions (1) When spraying the nectarine leaf surface with biogas slurry, the biogas slurry of the biogas digester with normal gas production for more than 3 months must be used, and it should be clarified and filtered for 2 to 3 days; The biogas fertilizer cannot be applied. (2) When applying biogas fertilizer, it should be kept at a certain distance from the root of the tree to prevent the roots from being broken and burned. (3) As the base fertilizer, the biogas residue should be covered in time to prevent evaporation. (4) Foliar spraying of biogas fertilizer should be carried out in the morning or afternoon when the temperature is low, and it should not be carried out at noon and high temperature. (5) When using foliar fertilizer, determine the reasonable proportion of water according to the concentration of biogas slurry to avoid causing damage. Spray the foliage to focus on the back of the leaf.

Author: Gui in 1000
Source: Henan Science and Technology News

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