November 19, 2024

Things to pay attention to when garden trees are fertilized

1. Because the roots of the trees are widely distributed, the nutrients and water are absorbed in the roots. Therefore, the fertilization should be around the roots and not near the trunk.

2. The roots are strong and the trees are more distantly distributed. The fertilization should be deep and the range should be large, such as Pinus tabulaeformis, Ginkgo biloba, skunk, Acacia, etc. The shallow root trees should be fertilized shallowly and the range should be small, such as Fatong and Amorpha And flowering shrubs, etc.

3. The organic fertilizer should be fully fermented and decomposed. Avoid using raw manure, and the concentration should be dilute. The chemical fertilizer must be completely pulverized into powder, which should not be applied in blocks.

4. After fertilization (especially chasing fertilizer), timely irrigation should be carried out in an appropriate amount to allow the fertilizer to penetrate into the soil.

5. It should be chosen when the weather is fine and the soil is dry. In the rainy days, because the roots absorb water slowly, not only the nutrients are not easily absorbed, but the fats are also washed away by rain and waste.

6. Sand, slopes and rocks are prone to nutrient loss and fertilization should be deeper.

7. Nitrogen fertilizer has strong mobility in the soil, so shallow application penetrates into the root distribution layer and is absorbed by the trees; the mobility of potassium fertilizer is poor, and the mobility of phosphate fertilizer is worse. It should be applied to the root system at the most.

8. The base fertilizer should be applied deeper due to slower fertilizer application. If the fertilizer is quicker, the fertilizer should be applied shallowly for the trees to absorb in time.

9. Foliar spray fertilizer enters the leaves through the stomata and stratum corneum, and then transports to various organs. Generally, the young leaves are younger than the old leaves, and the leaf back absorbs water faster than the leaf surface, and the absorption rate is also high. Therefore, when actually spraying, it is necessary to spray the back of the leaf and spray it to make it suitable for tree trunk absorption.

10. Foliar spray fertilizer should strictly control the concentration to avoid burning the leaves. It is best to spray on cloudy days or before 10 o'clock in the morning and after 4 o'clock in the afternoon to avoid high temperature and the solution is concentrated quickly, which may affect the spraying or cause phytotoxicity.

11. Fertilization in urban landscaping sites. When selecting fertilizer types and fertilization methods, it should be considered that fertilizers that do not affect the city's hygiene and emit odors should not be applied.
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