What pesticides do you need to apply before the peach trees bloom?

Peach trees need pesticides with the ratio of nitrogen, phosphorus and potassium of about 1∶0 at flowering stage. 5∶ 1.

In the full fruit period, nitrogen fertilizer was applied to peach trees to enhance the tree vigor. The content of potassium in peach fruit is 3. Twice as much as nitrogen. When potassium fertilizer is applied, the fruit is large and the yield is high. As a result, fruit trees are fertilized three times a year.

The application rate of N, P and K for mid-late maturing varieties accounts for 15%-20%, 20%-30% and 40% of the whole year, and it is applied before and after fruit picking.

Extended data:

Cultivation of peach trees:

Peach seedlings should be transplanted after defoliation in early spring or autumn. Small seedlings can be transplanted with bare roots or mud, and large seedlings need to be transplanted with soil balls. Cultivating large seedlings requires pruning to form a skeleton. Peach trees merge into a natural cup-shaped crown and a natural happy crown.

Generally, the new branch 30-40 cm above the ground is reserved as the first main branch, and the new branch 20-30 cm above the first main branch is selected as the second main branch, and at 1 m, that is, the new branch extracted by cutting buds is the third main branch. The three main branches should be evenly distributed around the trunk, and it is best not to rotate.

The plant spacing is 4m×5m or 3m×4m, and 500-840 plants are planted per hectare. The planting period can be from defoliation to germination. Taoyuan cannot be continuously cropped, otherwise the young trees will obviously weaken, the leaves will lose their green color, the new roots will turn brown and the branches will flow with glue.

References:

Baidu encyclopedia-peach tree