How long is the life of pear trees?

The life span of pear trees is very long, generally reaching 20-30 years, and the longest is 80- 100 years, or even about 200 years.

Pear trees are perennial plants. Once planted, they can bear fruit for years, decades or even hundreds of years. The oldest pear tree in China is over 500 years old. The life of fruit trees is a process of growth, fruiting and aging, which includes all life activities of fruit trees from birth to death, so it is called the life cycle of fruit trees.

In pear trees, the trunk bark is smooth in the young stage, and the bark thickens, cracks longitudinally or peels off with the increase of tree age. The shoots are hairless or have fine hairs, and then fall off; Branches over 2 years old are grayish yellow or even purplish brown. Winter buds are covered with tile-like scales, generally11-kloc-0/8. Flower buds are plump, brownish red or reddish brown, slightly shiny, and generally mixed buds; The leaf buds are small, sharp and brown.

Pear trees are characterized by their love of temperature, strong adaptability to soil and early flowering.

1. Pear trees like temperature, which requires high temperature for growth and low temperature for dormancy. No matter what kind of pear tree, thinning flowers is necessary. Take Qiuyue pear as an example, the principles of flower thinning are: thinning weak and strong, dense and sparse, thinning outside and inside, thinning permanent branches and thinning temporary branches.

2. Pear trees have strong adaptability to soil, deep soil layer, loose soil and good water permeability and water retention. Many pear orchards are generally short of nitrogen, followed by phosphorus and some trace elements. Therefore, farmers are required to fertilize according to the different characteristics of tree age and growth in different periods. Usually, in the early growth stage of pear trees, the amount of nitrogen fertilizer is large, so the application of nitrogen fertilizer should be strengthened.

3. Pear trees bloom early, mostly before late frost, and are easily affected by late frost. In spring, pear trees need to consume a lot of nutrients in the process of germination, flowering and new shoot growth, so germination fertilizer should be applied from late February to early March, that is, before flowering and leaf spreading. On the basis of applying base fertilizer in autumn, available nitrogen fertilizer is the main topdressing in spring, and farmyard manure can be applied in combination with nitrogen fertilizer and phosphorus fertilizer.