What is the reason why the latest pear trees only blossom and do not bear fruit?

Pear is the main economically cultivated fruit tree in China, which is rich in resources and varieties in our country. in the process of pear planting, there are many reactions from fruit growers. Their own pear trees only blossom but do not bear fruit, which seriously affects the yield and quality of pear trees and causes certain economic losses. So how is it that pear trees only blossom but don't bear fruit? How to prevent it? Let's get to know it.

First, the reason why blossoms do not bear fruit

1. Partial application of nitrogen fertilizer

In order to promote their growth, some fruit growers usually apply nitrogen fertilizer, which will cause the trees to grow vigorously, with only long branches without fruit, or few inflorescences, or more serious flower and fruit drop, and low fruit setting rate.

2. Abnormal climate

The temperature changes greatly in spring, and if there is a bad climate such as cold in late spring in the flowering period of pear trees, the phenomenon of falling flowers will be serious, resulting in less fruit.

3. Poor drainage

When the pear tree grows in the year with more rainy season, the orchard with poor drainage will cause timely, resulting in tree growth hindrance, less fruit hanging, and serious root death.

4. Poor pollination

Pear trees are very important in the period of flowering and pollination, especially when pears are cross-pollinated fruit trees, and the fruit setting rate of self-pollination is low.

II. Preventive measures

1. Rational fertilization

The application of nitrogen fertilizer should be reasonable, less nitrogen fertilizer, more phosphorus and potassium fertilizer, improve the flowering and fruit setting rate of pear trees, which is beneficial to improve the yield and quality of pear trees in the later stage.

2. Timely drainage

In the pear flowering period, too much Rain Water, too much water will affect plant growth and reduce fruit setting rate, so it is necessary to do a good job of drainage and waterlogging prevention measures, less in drought and no stagnant water in rainy season.

3. Pruning and hanging branches

If the pear tree grows too much, the other main branches and part of the backbone can only be cut off, and the overgrown branches can be pulled to the edge of the crown with a rope, which can not only control the vegetative growth of the plant, but also increase the light area, which is beneficial to improve the fruit rate.

4. Additional pollination genera

Pear is a cross-pollinated fruit tree, and the fruit setting rate of the same variety pollination is very low, even no fruit, so it is necessary to plant more pollinated varieties reasonably to improve the pollination quality and fruit rate. The proportion of general original varieties and pollinated varieties is 3:1.

5. Artificial assisted pollination

We can also choose artificial pollination, select varieties with large amount of pollen and strong affinity as pollination varieties, collect mature anthers and air them under the condition of astigmatism, so that the anthers are cracked and mobile phone pollen is pollinated artificially. Artificial pollination can be divided into spot pollination and liquid pollination, dipping the pollen with a brush and gently tapping on the female style. Liquid pollination means that the pollen is made into liquid by adding water, boron fertilizer and sugar according to a certain proportion, and then sprayed on the flowers with a sprayer to complete pollination.

The above is the introduction of the reason why the pear tree only blossoms but does not bear fruit. I hope it can help you. If you want to know more about it, please follow us.