Pomegranate sapling prevention

December 24, 2023

Pomegranate saplings refer to the phenomenon that some branches of the tree appear to shrink and die after wintering. The northern part of China is cold and dry in winter, with little rain and wind in early spring, and large amount of evaporation. The annual growth of pomegranate saplings is large, and the water retention of the branches is poor. Therefore, if it is difficult to cause severe winters, it will cause pumping. The techniques for preventing severe winter pumping of pomegranate saplings are as follows.

Variety selection

Should choose cold-resistant varieties, such as red skin sweet No. 1, black seed sweet, green skin sweet No. 1, giant seed honey, Taishan red pomegranate, Tunis soft seed pomegranate and so on. Some varieties with poor cold resistance can not be safely wintered in the north.

Strengthen fertilizer management

For saplings planted for 1-2 years, phosphorus and potassium fertilizers should be added during the growing period from July to September. Nitrogen fertilizer should be applied and the number of watering should be reduced to stop the growth of new shoots and allow the plants to be fully lignified.

Timely topping

In mid-August, the growth point of new shoots should be removed in time to control the growth of shoots to promote nutrient accumulation. At the same time, it is necessary to timely erase the sprouts sprouted from the tops of the branches to ensure the full maturity of the branches and enhance the wintering ability of the plants.

Chemical cold protection

In the first ten days of August, spray 300 times of paclobutrazol on the leaves to control the growth of new shoots and promote the filling of the branches. After the leaves of the plants in November, the application of Vaseline on the new shoots of the branches can significantly enhance the cold resistance of the plants. In the second half of February to the beginning of March, the canopy was sprayed with 5% lime milk to reduce the evaporation of the branches.

Buried in the cold

For the seedlings planted in the same year, the young branches can be bent down to bury the soil in the first ten days of November to prevent the branches from losing water and being frozen. Generally, the thickness of the buried soil is about 30 centimeters, and the branches are released from the soil in early March of the next year.

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