Key points of introduction and cultivation techniques of Sanhong honey pomelo

Choose to build a garden in the sandy loam area, which is sheltered from the wind and sunny, rich in water, deep and fertile. After the garden was selected, the grafted seedlings with developed root system, strong growth and one-year-old were selected for planting. The row spacing of planting plants is 3 meters × 3 meters, and the triangular planting mode is better. After planting, you can do a good job in fertilization, bagging, pruning and other management work.

1. Establish pomelo orchard: choose to build a garden in the sandy loam zone with shelter from the wind and the sun, rich water, deep and fertile soil, equal height terrace, plant spacing of 3 meters × 3 meters, and triangle is the best planting way.

2. Select seedlings: choose the grafted seedlings with developed root system, strong growth and one-year-old to be planted. Under good management conditions, the seedlings can resume growth quickly and the crown can be formed quickly.

3. Fertilization: the ring ditch application was adopted, and the fertilization times were carried out in accordance with the requirements of "autumn application of base fertilizer, careful application of budding fertilizer, combined application of fruit protection and strong fruit fertilizer", applying fertilizer 3 times and 4 times a year. Give priority to organic fertilizer, supplemented by inorganic fertilizer, and apply more p and k fertilizer.

4. Bagging: first, remove the malformed fruit, small fruit and disease and insect fruit. When the young fruit grows to 100Mel 150g and the transverse diameter of the fruit is about 5cm, bagging should be carried out. When bagging, you should pay attention to the appropriate width and tightness, neither loosening the mouth of the bag nor damaging the stalk.

5. Pruning: young pomelo trees are generally pruned twice, that is, summer pruning and winter pruning; results pomelo trees are generally pruned three times, that is, spring pruning, summer pruning and winter pruning, spring pruning is from February to March, summer pruning is from May to July, and winter pruning is half a month after fruit harvest, that is, October to November. The key point is to remove the peripheral branches, and the "open skylight" pruning method can be used for those with dense canopy. The inner bore branch should be cut off the fruit branch, dead branch, disease and insect branch and weak branch.