What fertilizer is best for pear trees in autumn?

The temperature and ground temperature are relatively high in autumn, which is the peak period for root growth of pear trees. At this time, the pear tree's root system has strong absorption capacity and can absorb more nutrients. Therefore, proper fertilization in autumn will help pear trees improve fruit quality. So what kind of fertilizer is best for fertilizing pear trees in autumn? Let’s learn more about it below.

What fertilizer is best for pear trees in autumn?

1. Organic fertilizer

In autumn, organic fertilizer is the main fertilizer for pear trees, which can improve soil structure and increase soil fertility. Commonly used organic fertilizers include decomposed soil and miscellaneous manure, manure, compost, cake fertilizer, green manure, etc.

2. Nitrogen/phosphorus/potassium fertilizer

Among them, nitrogen fertilizer can promote the growth of pear tree leaves and branches, potassium fertilizer can improve the pear tree's stress resistance and fruit quality, and phosphorus fertilizer also has an important influence on the pear tree's root growth and fruit quality.

3. Compound fertilizer

0.5-2 kg of refined organic compound fertilizer, high-energy compound fertilizer, etc. can be applied.

4. Medium and trace element fertilizer

For pear orchards with nutrient deficiencies, micro-fertilizers should be applied in a targeted manner. For example, for orchards that are deficient in iron, zinc and boron, you can supplement them by spraying 0.2%-0.3% ferrous sulfate, 0.2% zinc sulfate heptahydrate, and 0.2%-0.5% borax solution on the leaves. In serious cases, you can combine it with soil fertilization.

What key points should be paid attention to when fertilizing pear trees in autumn?

1. Fertilization time

It is recommended to apply fertilizer in autumn from September to October when the soil moisture is good. Applying fertilizer at this time will help the fertilizer to decompose quickly due to the high outside temperature.

2. Amount of fertilizer

Determine the amount of fertilizer based on the age of the pear tree, the amount of fruit produced and the soil fertility.

3. Fertilization location

The fertilization location should be selected within the projection range of the tree crown, avoiding being too close to the trunk to avoid damaging the roots.

4. Fertilization depth

To avoid waste, the fertilization depth should be 30-50 cm.

5. Fertilization method

(1) Annular trench application: Dig an annular trench 30-50 cm deep at the direct projection position of the tree crown, apply fertilizer evenly into the trench, and then cover with soil. This method is suitable for young pear trees.

(2) Radial trench application: With the tree trunk as the center, dig 4 to 6 radial trenches outwards. The trenches are 30 to 50 cm deep and 30 to 40 cm wide. Sprinkle the fertilizer evenly into the trench and then cover it with soil.

(3) Broadcasting throughout the orchard: Suitable for mature pear trees and densely planted pear orchards. That is, spread the fertilizer evenly in the garden and turn it into the soil through deep plowing. The plowing depth should be 20-25 cm.

In general, autumn fertilization for pear trees is generally based on organic fertilizers, combined with nitrogen, phosphorus, potassium compound fertilizers and trace element fertilizers. When applying fertilizer, you should master the specific time and method, which can significantly improve the yield and fruit quality of pear trees.