What kind of fertilizer should be used when fruit trees are bearing fruit?

During the growth process of fruit trees, fertilization is very critical and will directly affect the yield and quality of the fruit trees. When fruit trees are bearing fruit, the main purpose is to promote the enlargement of the fruit and improve the quality of the fruit. A lot of fertilizers are applied. So what kind of fertilizers are mostly used when fruit trees are bearing fruit? Let’s take a look with the editor below.

1. What kind of fertilizer should be used when fruit trees are bearing fruit?

1. Organic fertilizer : Apply more organic fertilizers, such as commercial organic fertilizer, bacterial fertilizer or decomposed farmyard manure, which can provide comprehensive nutrition and improve soil structure.

2. Compound fertilizer : including nitrogen, phosphorus and potassium compound fertilizer, which is used to provide the main nutrients required for the growth of fruit trees.

3. High-potassium compound fertilizer: Used during the fruit expansion period, it helps the fruit to expand and improve the fruit quality.

4. Medium and trace element fertilizers: such as calcium, magnesium, boron, zinc, etc. These elements are very important for improving fruit quality and preventing nutrient deficiency.

5. Foliar fertilizer : During specific periods, such as flowering period, young fruit period, coloring period, etc., spray foliar fertilizers such as boron, calcium, magnesium, high phosphorus and high potassium to supplement the trace elements needed by fruit trees.

6. Potassium dihydrogen phosphate: applied when autumn shoots mature, it is beneficial to fruit enlargement, coloring, acid reduction, sugar increase, etc.

7. Potassium sulfate: used as a coloring fertilizer, it helps color the fruit and increase the sweetness of the fruit.

8. Biofertilizer : When used in conjunction with organic fertilizer, it can accelerate the decomposition of organic matter in organic fertilizer and decompose and transform harmful substances at the same time.

2. Methods of fertilizing fruit trees

1. Ring ditch casting

Dig a circular trench 3050 cm wide and 2040 cm deep in an area slightly away from the outer edge of the tree crown, apply fertilizer into the trench, mix it with the soil and cover it. This method is suitable for young orchards, and the direction and depth should be rotated every year to avoid root damage.

2. Radial groove casting

One meter away from the tree trunk, dig 58 radial trenches with a width of 30-50 cm along the growth direction of the roots and apply fertilizer. The location can be changed every other year or every two years, and the fertilization area can be expanded year by year. When digging trenches, pay attention to making the inside shallow and the outside deep to reduce the cutting of large roots.

3. Strip groove casting

Dig 12 long trenches 50 cm wide and 40-50 cm deep between the rows or plants of fruit trees, then apply fertilizer and cover with soil. This method is suitable for mature orchards and is beneficial for the roots to absorb nutrients.

4. Acupuncture

Outside the drip line on the outer edge of the crown, dig 35 holes in a circle about every 50 cm, with a diameter of 30 cm and a depth of 20-30 cm. Apply fertilizer into the hole and then cover with soil. This method is mostly used for top dressing, which can reduce the contact area between fertilizer and soil and avoid being fixed by soil.

5. Whole garden fertilization method

Spread the fertilizer evenly throughout the garden, then work it into the soil at a depth of 25 to 30 cm. This method is suitable for mature orchards where the root system has spread throughout the orchard, but it often induces the roots to float, so it should be used alternately with other fertilization methods.

The above is an introduction to what fertilizers to use when fruit trees are bearing fruit. When fruit trees are bearing fruit, you should apply fertilizers reasonably according to the nutritional needs of the fruit trees and the soil fertility conditions, choose appropriate amounts of nitrogen fertilizers, phosphorus fertilizers, potassium fertilizers and trace element fertilizers, and pay attention to fertilization methods and precautions to ensure the quality and yield of the fruit.