Cause Analysis and Control Methods of Navel Orange Premature Aging

Navel oranges are loved by the public for their delicious taste and rich nutrition. As market demand expands, their planting area is becoming wider and wider. In recent years, the phenomenon of premature aging in navel oranges has become increasingly obvious, seriously affecting the yield and quality of navel oranges. So how should navel orange premature aging be prevented and controlled? Let's take a look.

1. Symptoms of premature aging

When premature aging occurs in navel oranges, the leaves decrease, the leaf color is dull and lusterless, and the trunk appears grayish brown. On severely prematurely aged trunks, fungi may also appear, and old branches die off. Although the number of flowers is large, the quality of the fruit is poor. In addition, the root system may show drying and peeling, with relatively few new roots.

2. Branch pruning

According to the specific situation of premature aging in navel oranges, the affected branches can be pruned appropriately. Spring is a relatively suitable time for pruning, and after the branches are pruned, new branches will sprout again. Except for some severely prematurely aged plants that cannot recover, premature aging at other levels can all be restored through pruning. At the same time, when the trees begin to bear fruit after planting and their vigor has recovered, the number of fruits should be reasonably controlled. If too many fruits are set, premature aging may continue to occur in the following years. Once repeated premature aging occurs, it is difficult to recover, until the plant dies.

3. Reasonable irrigation

Water plays an extremely important role in the growth of navel oranges, and reasonably controlling the amount of irrigation has a good effect on preventing and controlling premature aging in navel oranges. The soil moisture content should be reasonably maintained according to the actual growth conditions of the navel oranges. In summer, during the rainy period, attention should be paid: when rainfall is heavy, the soil moisture content far exceeds what the navel oranges need for growth. In this case, ditches should be dug in time to drain water and reduce the soil moisture content, creating a loose and well-aerated soil environment for the growth of navel oranges.

4. Scientific fertilization

Improving the fertilization method for navel oranges is also one of the important measures for preventing and controlling premature aging. The traditional fertilization method mainly applies fertilizer beside the plants, but now fertilization requires blending the fertilizer. For example, if organic fertilizer and compound fertilizer are used, a certain amount of water should be mixed in, then composted, and after it is decomposed, applied deeply. In this way, the fertilizer nutrients are greater, and it is also easily absorbed by navel oranges.

The above is an introduction to the causes and control methods of navel orange premature aging. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.