2019年2月1日星期五

How is the grapefruit tree fertilized?Method of fertilizing pomelo trees

Grapefruit is a sweet and sour delicious fruit, not only rich in nutrition, but also medicinal value, loved by everyone.When planting pomelo tree, we need to pay attention to the fertilization of pomelo tree is not the same as other plants, you can apply a kind of fertilizer from small to large or with the same way of fertilization, specific pomelo tree is how to apply fertilizer?
How does pomelo tree young tree apply fertilizer
The root system of seedling without fruit is shallow and has weak ability of absorbing fertilizer.Fertilize once a month from march to July and November.Among them, spring shoot fertilizer in March, summer shoot fertilizer in May and winter fertilizer in November are essential.
Young trees mainly organic nitrogen fertilizer, such as human manure, mature manure, cake fertilizer, combined with the right amount of urea fertilizer.
How does the pomelo tree fertilize the adult tree
Adult fruit tree fertilization to achieve high quality, high yield and stable yield, regulating the relationship between vegetative growth and reproductive growth.Fertilizer should be applied at least 3 times a year.Germination accelerating fertilizer: 10-15 days before germination in early march, the application was mainly of fast-acting nitrogen fertilizer, with appropriate amount of phosphate and potassium fertilizer, which promoted the extraction of spring shoots with large quantity and good quality.This fertilization relates to the current and next year's yield, must be timely, early and adequate.
Techniques for fertilizing pomelo trees
The amount of fertilizer application accounts for about 30% of the whole year, and the general plant is about 0.50-0.75kg of urea and 0.25kg of calcium superphosphate.Zhuangguo fertilizer: from June to August, zhuangguo fertilizer was applied during fruit expansion, with nitrogen as the main fertilizer and phosphorus and potassium as the auxiliary fertilizer.Fertilizer amount accounts for about 30% of the year, the specific should be the number of hanging fruit to decide.Hanging fruit is much, apply fertilizer amount is big, can apply in June, in August cent twice, general plant applies urea, compound fertilizer each 0.5 kilograms or urea 0.75 kilograms, calcium superphosphate, potassium chloride each 0.25 kilograms.Hanging fruit less discretion or not strong fruit fertilizer, in case of fierce autumn shoot.
Fruit-picking fertilizer: applied in early November, the application amount accounts for about 40% of the whole year.The growth of pomelo fruit consumes a lot of nutrients, which needs to be supplemented in time to restore the tree potential, improve the ability to withstand cold and overwinter, and promote flower bud differentiation, laying a foundation for the growth and results in the next year.Fruit fertilizer should be a combination of quick - acting fertilizer and organic fertilizer, nitrogen fertilizer and phosphate fertilizer.General plant application urea, compound fertilizer 0.5kg each, cake fertilizer 5kg, soil fertilizer such as waste 100kg.In addition, can also be combined with spraying the right amount of urea, phosphate dioxy potassium for root topdressing, timely supplement of the tree for nitrogen, phosphorus, potassium needs.

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