In March and April, fruit trees don't miss the application of “spring shoot fertilizerâ€. Using biogas slurry as the fruit spring "spring shoot fertilizer" and "summer tip fertilizer" top dressing can increase fruit fruit fruit rate by 5%, increase yield by about 20%, enhance quality, and increase sweetness by 0.5~1%.
Fertilization principle: Different fruit trees are applied at different ages, generally in the growing season with biogas slurry.
Fertilization method: Young trees will be applied to “spring shoot fertilizer†(biogas slurry) from late February to early March, “summer shoot fertilizer†(biogas slurry) in early May, and “autumn shoot fertilizer†(biogas slurry) at the beginning of July. ); adult trees mainly apply flower fertilizer (biogas slurry) before the flowering result, and strong fruit fertilizer (biogas slurry) at the young fruit stage, at the drip line around the crown, open a full circular or half-moon groove, the groove width is 30 cm. , 35 cm deep, such as soil depth difference of 50 cm is appropriate, each plant with biogas residue 100 ~ 150 kg, appropriate application of some phosphate fertilizer, covering soil slightly convex, to prevent accumulation of water. In the flowering and fruiting period, foliar spray fertilizer can also be used to supplement the nutrients. The flowering period is 100 kg of water with a clear biogas slurry of 300 kg (1:2~3), directly sprayed into the leaf surface (leaf back), and the fruit is expanded. 100 kilograms of clarified biogas slurry to 100 kilograms of water (1:I), directly sprayed into the leaves and fruit noodles, 2 to 3 times a month. Foliar spray fertilizer is best selected in the sunny evening, the main sprayed back, sprayed It is advisable to fill the leaves with water droplets instead of dripping water.
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