Post-harvest management of apple trees

First, apply base fertilizer early.

After fruit harvest, it is the third peak of root growth, and it is a good time to apply base fertilizer. During the full fruit period, the amount of basic fertilizer per mu of orchard is 4000kg / mu, urea 20kg, phosphate fertilizer 80kg, potash fertilizer 30kg. At the same time, according to the condition of element deficiency, appropriate amount of trace elements are added, and the depth of application is about 20cm / 30cm. The initial fruit orchard can use digging radial and strip ditch to apply base fertilizer, the depth and width of the ditch should be more than 50cm, and the amount of fertilizer application should be halved as the same as Sheng orchard.

Postharvest pruning

One is to remove the overgrown branches in the crown, the upright shoots that germinate in autumn, the sprouting strips near the ring cut, and the restrained branches reserved in summer. The second is to retract slender branches, senile drooping branches, mopping skills, thinning weak branches, ineffective branches without light at the bottom, and prosperous and long branches in the middle and upper parts, so as to reduce nutrition consumption, promote branches to be full, and buds are full, which is beneficial to overwintering.

Third, clean up the orchard

After harvest, the orchard is combined with pruning, cutting off all kinds of diseased branches and damaged branches, sawing and scraping off the branches suffering from rot, and properly collecting and destroying them at any time, thoroughly cleaning up the remnant branches, fallen leaves, disease and rotten fruits in the garden and burying them deeply, smashing the places where branch cocoons and rough warped skin pests are hidden, thoroughly clear the garden, eliminate the source of insect disease, and leave no dead corners, so as to create a good ecological environment for apple production in the coming year. Bo Guoli