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

Pear is one of the main economic fruit trees in China. There are abundant resources and many varieties in China. In the process of pear planting, there are many fruit growers 'reactions. Their pear trees only bloom but do not bear fruit, which seriously affects the yield and quality of pear trees and causes certain economic losses. So what's the matter with pear trees that only bloom but don't bear fruit? How to prevent? Let's get to know each other.

1. Reasons for flowering and not bearing fruit

1. Partial application of nitrogen fertilizer

Some fruit growers in order to promote their growth, generally partial application of nitrogen fertilizer, will cause tree vigor prosperous long, appear only long branches do not bear fruit, or inflorescence less, or flower drop fruit phenomenon is more serious, fruit setting rate is low.

2. Climate anomaly

In spring, the temperature changes greatly. If the bad weather such as late spring cold occurs in the flowering period of pear trees, it will cause serious flower drop phenomenon, resulting in less fruit.

3. Poor drainage

Pear trees in the rainy season when growing more years, poor drainage orchard will cause timely, resulting in tree growth is hindered, less fruit, serious when the root rot death.

4. Poor pollination

The pollination period of pear tree is very critical, especially pear tree itself is a cross-pollinated fruit tree, self-pollination fruit setting rate is low.

II. Preventive measures

1. Reasonable 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 conducive to the improvement of yield and quality of pear trees in the later stage.

2. Timely drainage

In pear blossom too much rain, too much water will affect plant growth, reduce fruit set rate, so to do a good job of drainage and waterlogging prevention measures, drought can be less, rainy season does not accumulate water.

3, pruning hanging branches

If pear trees grow too vigorously, other main branches and some backbones can only be cut off, and the branches that grow too densely can be pulled to the edge of the crown with ropes, which can not only control the excessive vegetative growth of plants, but also increase the illumination area, which is conducive to improving the fruiting rate.

4. Increased pollination

Pear is a cross pollinated fruit tree, the same variety pollination fruit setting rate is very low, even no fruit, so in planting reasonable increase pollination varieties, improve pollination quality, improve fruit setting rate, general original varieties and pollination varieties with 3:1 ratio is appropriate.

5. Artificial pollination

Artificial pollination can also be selected, and varieties with large pollen amount and strong compatibility can be selected as pollination varieties. Mature anthers can be collected and dried under scattered light conditions to make anthers dehisce and remove pollen, and artificial pollination can be carried out. Artificial pollination can be divided into point pollination and liquid pollination. Point pollination uses a brush to dip pollen and gently touch the female flower style. Liquid pollination refers to adding water, boron fertilizer and granulated sugar into a liquid according to a certain proportion, and then spraying it on the flower with a sprayer to complete pollination.

The above is an introduction to the reason why pear trees only bloom and do not bear fruit. I hope it can help you. If you want to know more about it, please pay attention to us.