What is the reason why pear trees bloom and bear no fruit?

The reasons why pear trees don't blossom and bear fruit are fertilization deviation, abnormal weather and poor pollination.

1, fertilization deviation

Generally speaking, the fertilizers needed by pears are mainly nitrogen, phosphorus and potassium. If the proportion of several fertilizers is deviated during fertilization, excessive nitrogen application will lead to the rapid growth of pear trees, promote the growth of branches and vines, make the flowers not get enough nutrition during flowering, and lead to serious flowering, and finally the fruits will not get much nutrition and less fruit setting.

2. The weather is abnormal

In early spring, due to the great temperature change, the flowering period of pear trees in Sichuan, Hunan and other places happens in February-March. Therefore, if the weather is "cold in late spring", it will cause the phenomenon of pear trees falling flowers and further aggravate the lack of fruit.

3. Poor pollination

Because the pear tree itself is pollinated, it is particularly important to pollinate the pear tree at flowering stage, but there are many varieties with extremely low pollination rate. Therefore, their nutrient absorption and late pollination should be considered when planting to avoid poor fruit setting rate due to poor pollination.

Measures to improve fruit setting rate

1, balanced fertilization

Because the distance between trees is too large when pear trees are planted, many farmers often interplant some crops with short periodicity to increase the utilization rate of land, but it is not because pear trees have a very strong ability to absorb nitrogen fertilizer.

Therefore, when fertilizer is applied to other crops, it is often absorbed by pear trees. Therefore, if some orchards are planted in this way, it is necessary to increase phosphorus and potassium to balance.

Step 2 arrange branches

Considering the growth of pear trees in the later period, when the main branches of pear trees grow too fast, the main branches and some tree backbones should be cut off in time, and the dense branches should be pulled to the edge with ropes.

This can not only meet the basic nutritional needs, but also control the absorption of nutrients by the trunk, which is convenient for nutrients to be transported to the end, and also increase the original light receiving area and intensity, thus improving the fruit setting rate.