What if the young citrus fruit turns green slowly?

After the citrus blossom fade, attention must be paid to the phenomenon that the young fruit turns green slowly, which is a dangerous phenomenon, indicating that the nutrition of the plant can not keep up, and there will be a large number of fruit drop in the second physiological fruit drop. So what is the reason why the young fruit turns green slowly? What should I do? Let's take a look at the detailed introduction.

First, the reason for the slow turning of green

1. Cloudy and rainy weather

In the long-term low temperature and rainy weather, the photosynthesis of plant leaves is weakened, resulting in insufficient nutrition, resulting in the gradual weakening of the tree. And the plant needs a lot of nutrients after setting fruit, so the phenomenon that the supply of nutrition exceeds the demand, the young fruit will appear yellowing phenomenon. If there is too much water, the absorption capacity of the root system will be weakened, and coupled with less synthetic nutrients in photosynthesis, the root growth will be hindered, which will lead to the slow green or difficult green of the young fruit.

2. The growth of new shoots is blocked.

When the leaves of the new shoots can not turn green normally or the spring shoots are disturbed by diseases and insect pests, the nutrients synthesized by photosynthesis are less, which can not meet the growth and green of the fruit, and will lead to a large number of young fruit shedding.

3. Hormone imbalance

During the growth of young fruit, if the plant auxin and gibberellin are sown, the fruit stalk will produce abscisic acid and cause fruit drop, but the spring shoot will not turn green and the efficiency of photosynthesis will wait, resulting in fruit drop.

II. Solutions

It is necessary to reasonably carry out fruit thinning, pruning, drainage and irrigation, as well as pest control, especially pay attention to the matrix diseases that cause fruit drop, which are very easy to occur in rainy periods. According to the reasonable fertilization in each growth stage of citrus and the reasons needed in the replenishment period, organic fertilizer and growth regulators should be supplemented in time when the light is less, so as to promote photosynthesis and make its nutrition uniform, so as to avoid the phenomenon of turning green slowly. During the period of controlling shoots and promoting flowers, the ring cutting of weak trees should not be too early or overweight, and we should eat hormones as far as possible. for undernourished trees, we can improve the measures of spraying foliar fertilizer to promote its growth.

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