Causes and prevention methods of premature senescence of navel orange

Navel orange is popular because of its delicious taste and rich nutrition. With the expansion of market demand, its planting area is becoming wider and wider. In recent years, the phenomenon of premature aging of navel orange is more and more obvious, seriously affecting the yield and quality of navel orange, so how to prevent premature aging of navel orange? Let's take a look.

1. Premature aging symptoms

When navel orange premature senescence occurs, the leaves decrease, the leaf color is dull, the trunk is gray brown, fungi and old branches die in the trunk with serious premature senescence. Although the number of flowers is large, the quality of fruit is poor. And the root system will appear dry peeling phenomenon, new roots are relatively small.

2. Branch pruning

According to the specific situation of premature senescence of navel orange, the diseased branches can be properly pruned. The pruning selection is more suitable in spring. After pruning, the branches will germinate again. Except for some plants with severe premature senescence, other degrees of premature senescence can be restored by pruning. At the same time, when planting and restoring trees begin to bear fruits, the number of fruits should be controlled reasonably. If there are too many fruits, premature senescence may continue to occur in the next few years. Once repeated premature senescence occurs, it is difficult to recover until the plants die.

3. Reasonable irrigation

Water content plays an important role in the growth of navel orange, and reasonable control of watering amount has a good effect on the prevention and control of premature aging of navel orange. To combine the actual growth of navel orange, reasonable maintenance of soil moisture content, in summer rainy period should pay attention to, precipitation is large, then the soil moisture content far exceeds the navel orange growth needs, for this situation to dig ditch drainage in time, reduce the soil moisture content, for navel orange growth to create a loose, breathable soil environment.

4. Scientific fertilization

Improving the fertilization method of navel orange is also one of the important measures to prevent premature aging. The traditional fertilization method is mainly to apply fertilizer beside the plant, but now fertilizer should be mixed with fertilizer. How to mix organic fertilizer and compound fertilizer should be mixed with certain water. In the retting system, when it is decomposed deeply, the fertilizer has more nutrients and is easy to be absorbed by navel orange.

The above is the reason and prevention method of navel orange premature aging, I hope to help you, want to know more related knowledge, please pay attention to us.