Application time of apple water-soluble fertilizer

Apple is one of the fruits that people often eat. It has high nutritional value and is rich in minerals and vitamins. Apple trees have a long growth cycle and need reasonable fertilization in order to produce good quality fruits. The following editor will introduce the use time of apple water-soluble fertilizer for you.

The fertilization of water-soluble fertilizer for apple trees is generally divided into base fertilizer and topdressing fertilizer.

1. Base fertilizer

The time of fertilization should be applied as soon as possible after fruit picking. Before and after defoliation, the rotten organic fertilizer and high-phosphorus water-soluble fertilizer should be mixed evenly before and after defoliation, and then it should be applied in radial ditch or strip ditch, about 40cm. Use high phosphate fertilizer 4Kg per mu or so.

Second, topdressing

The times of topdressing in high-yield orchard were more than 5-7 times.

① topdressing before sprouting (mid-late March): water-soluble fertilizer can be applied after spring germination, during this period, nitrogen element fertilizer can be added, such as moles of a large number of elements high nitrogen water-soluble fertilizer, 5 kg per mu of land can promote the rapid growth of leaves, prevent the emergence of yellow leaves and other phenomena, topdressing can be applied once.

② topdressing before flower bud differentiation (May-June): Apple trees can apply high-phosphorus water-soluble fertilizer once in the early stage of China. Phosphorus element has auxiliary effect on flowering and fruit setting of fruit trees. Molal high-phosphorus water-soluble fertilizer or balanced fertilizer can be selected.

Topdressing during ③ fruit expansion period (July-August): topdressing during fruit expansion period can increase yield and fruit sugar content, promote coloring and firmness, which is an essential topdressing. Mainly to topdressing available potash fertilizer, using high potassium water soluble fertilizer, about 10 kg per mu, topdressing 2-3 times.

The advantage of apple water-soluble fertilizer is more obvious than that of traditional compound fertilizer, and the specific fertilization time should be adjusted according to apple varieties, fertilizer requirements of fruit trees and tree growth and fruit.