Altitude requirements for planting mellow plum

Bee sugar plum should be planted in the area below 1200 meters above sea level, and the density should be reasonable according to the topography. It is suggested to plant 3-4m and row 2-3m in mountainous, hilly and relatively barren areas, and to plant sparsely in the land with good soil and fertilizer.

1. Reasonable close planting

1. The growth speed of bee sugar plum is relatively fast, and the tree grows vigorously. It is generally planted in areas below 1200 meters above sea level. The planting density can be reasonably carried out according to the specific terrain and topography, soil fertility and early yield requirements.

2. In mountainous areas, hills and barren areas, it is suggested to use plant spacing of 4m, row spacing of 3m, pruning according to natural open center shape, or dense planting according to row spacing of 2m, plant spacing of 3m, pruning according to trunk shape, so as to achieve early yield increase.

3. In the area with good soil fertility, sparse planting can be carried out appropriately, and the plant spacing can be 3m, the row spacing 5m, and the pruning can be carried out according to the open center shape.

II. Strengthen water and fertilizer management

1, bee sugar plum fruit is relatively large, the requirements for nutrients are relatively high, generally in the autumn of October to apply sufficient base fertilizer, about 4000 kg per mu of organic fertilizer.

2. Topdressing of decomposed human excrement or potassium sulfate type nitrogen and phosphorus compound fertilizer can be carried out before flowering of weak trees.

3. After the hard core period, foliar fertilizers such as potassium dihydrogen phosphate can be sprayed every half month or so in combination with pest control.

4. After harvest, it is necessary to apply phosphorus and potassium fertilizer in time, which is conducive to restoring tree vigor. At the same time, watering according to soil moisture conditions, especially in germination period, fruit hard core period and rapid expansion period, sufficient water is needed.

III. Flower and Fruit Management

1. Improve the fruit setting rate: According to the ratio of 8:1, the flowering period and the bee sugar plum can be configured, and the "April plum" with strong pollen affinity can be used to improve the fruit setting rate by cross-pollination.

2, strict fruit thinning: wait until the bee sugar plum into the peak fruit period, fruit setting is better, you can start strict fruit thinning, reasonable load, so as to improve the quality and size of the fruit.

3. Fruit thinning time: Generally, fruit thinning can be carried out in late April. At this time, the distinction between large and small fruits is obvious. The diseased fruits, redundant fruits and abnormal fruits shall be removed. One fruit can be reserved for flower clusters and short fruit branches, and one fruit can be reserved for medium and long fruit branches at an interval of 4-5 cm.

IV. Treetop management

The tree vigor can be effectively weakened by measures such as pruning, pulling, girdling, picking, twisting, and using plant growth regulators such as multi-effect fruiting, so as to prevent excessive growth of new shoots, balance nutrition and reproductive growth, and promote flower bud differentiation.

V. Post-management

1. Bee sugar plum is more resistant to glue flow disease and bacterial perforation disease. The occurrence of disease is relatively light, after defoliation to germination can be sprayed with 5 degrees of sulfur mixture to clear the garden.

2. Aphids need to be controlled before and after flowering, and other diseases and insect pests can be reasonably used according to specific conditions.

3. Generally, it is better to harvest in the hard ripening period. The background color of the pericarp changes from green to yellow, and the taste is crisp and sweet.