Hawthorn fertilization method
The use of basal fertilizer is best performed in the late autumn when the fruit is harvested. This can promote the absorption and accumulation of nutrients by the tree, which is conducive to the differentiation of flower buds. The application of basal fertilizer is preferably based on organic fertilizer, with a certain amount of chemical fertilizer. The application amount is determined based on the size of the fruit tree and the yield of the hawthorn. A 20 cm to 40 cm groove is applied.
The topdressing fertilizer during flowering is dominated by nitrogen fertilizer, which is generally about 25% of the annual application amount, which is equivalent to 0.3 kg to 1.3 kg of ammonium bicarbonate per plant. According to the actual situation can also be appropriate with the application of a certain amount of phosphorus and potassium fertilizers. Combine irrigation with a small ditch.
During fruit enlargement, top-dressing fertilizer is dominated by potash fertilizer, and a certain amount of nitrogen and phosphorus fertilizers are applied to increase yield and improve quality. The potassium fertilizer per fruit tree is generally 0.2 kg to 0.5 kg of potassium sulfate, with 0.25 kg to 0.5 kg of ammonium bicarbonate and 0.5 kg to 1.0 kg of superphosphate.
Hawthorn has less requirement for trace element fertilizers, and organic fertilizers can be applied with less trace element fertilizers. The actual amount of trace fertilizers is: borax 0.25 kg to 0.5 kg, zinc sulfate, and 2 kg to 4 kg. .
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