What fertilizer is best for poplar trees?

Poplar fertilization time

The time to fertilize poplars is the seedling stage and the mature tree stage. The growth rate in the seedling stage is relatively fast, so it is necessary to fertilize it in time to help it grow quickly. In the mature tree stage, the root system is more developed and has a strong ability to absorb nutrients, so it also needs to be fertilized in time.

What fertilizer to use for poplar trees

When fertilizing poplar trees, you can apply green manure, nitrogen fertilizer, and phosphorus fertilizer, which will significantly promote its growth. The effect of green manure is the most obvious, followed by phosphorus fertilizer and nitrogen fertilizer. The effect of potassium fertilizer is not significant. Chemical fertilizers should be used in combination with green manure.

Poplar fertilization method

1. When planting poplars, applying base fertilizer in the hole has a very good effect. It can provide fertilizer for a long time and improve the physical and chemical properties of the soil. The base fertilizer is generally farmyard manure and slow-release chemical fertilizer. During this period, local fertilizer, cake fertilizer and green manure can be used to press green.

2. Apply 10-20kg of local fertilizer to each plant, 2-5kg of cottonseed cake or rapeseed cake to each plant. Crush them and apply. Apply 10kg of green manure to each plant. Do not apply top dressing in the year of afforestation.