Fertilization scheme of water-soluble fertilizer for apple trees

Apple is a common kind of fruit, because of its long growth cycle and large amount of fertilizer, reasonable and appropriate fertilization can increase the yield of fruit. The following editor will bring you a plan for applying water-soluble fertilizer to apple trees.

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, extra-root topdressing

The times of topdressing in high-yield garden 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 application scheme of water-soluble fertilizer for apple trees should be adjusted and implemented reasonably according to the local climatic conditions and the growth of fruit trees.