Causes and solutions of premature senescence of kiwifruit

In the process of kiwifruit, farmers often encounter the phenomenon of premature senescence of kiwifruit, which will seriously shorten the fruiting life of kiwifruit and bring huge economic losses to farmers. So what is the reason for the premature senescence of kiwifruit? I don't know what to do Come and have a look with the editor.

1. Causes of premature senescence of kiwifruit

1. Improper early results

In fruit management, eager to hang fruit, eager to pursue yield, resulting in serious tree overload, nutrient storage deficit, the size of the phenomenon, although the tree resistance decreased, leading to the spread of diseases. Therefore, urgent hanging fruit and ruthless yield are the first major harmful factors leading to premature senescence and short fruiting years.

2. Bad root system.

Because of unreasonable fertilization, soil tillage in rainy season leads to soil degradation, agglomeration, storage of root rot, or planting too deep, root growth is inhibited. Or a large number of chemical fertilizers, especially partial application of nitrogen fertilizer, do not pay attention to formula fertilization and the application of organic fertilizer, which will lead to poor root growth and development, poor root absorption, tree decay and shortened fruiting years.

II. Solutions

1. Scientific fertilization

It is necessary to apply sufficient basic fertilizer before only defoliation after fruit harvest, apply more nitrogen fertilizer in June to promote branch growth, and control nitrogen fertilizer application and increase phosphorus and potassium fertilizer to promote fruit growth from July to October. Autumn base fertilizer should be all-element fertilizer, mainly organic fertilizer, combined with chemical fertilizer and microbial fertilizer to ensure the sprouting, flowering and fruit setting of kiwifruit in the coming year.

2. Deep turning and enlarging acupoints

While applying base fertilizer, we should pay close attention to deep turning and expanding holes, at the same time, cut off the senescent roots at the end, promote new roots, apply more organic fertilizer after root cutting, and then water and cover the soil.

3. Irrigation to preserve soil moisture

Because of the premature senescence of trees and the poor absorption of roots, it is necessary to carry out extra-root topdressing for many times, such as spraying foliar fertilizer, in order to grasp the fertilization and watering work before the growth of new shoots. This can promote the prosperity of new roots and promote the development of new roots.

4. Keep flowers and fruits scientifically

For more serious aging trees, it is necessary to leave fewer flowers, less fruit or no flowers at all, no fruit at all, and try to avoid causing wounds on the backbone branches, especially large wounds, so as not to weaken the tree potential and be detrimental to the healthy growth of the tree.

5. Scientific pruning

In order to prune the trees reasonably, we should choose the moderately weak branches when pruning the strong trees, and the moderately prosperous branches should be selected when the weak trees are pruned. Renew and rejuvenate the fruiting branches in time, retain a fruiting branch, cultivate a reserve branch for the next year, and maintain a vegetative branch.

The above is the introduction of the causes and solutions of kiwifruit premature senescence. I hope it can help you. If you want to know more about it, please follow us.