How to fertilize sunflowers, what kind of fertilizer is good?

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1. Fertilization time

2. Types of fertilizers

3. Fertilization method

4. Precautions

When transplanting or repotting, you need to pay attention to the use of base fertilizer, then top-dressing fertilizer during the growth period, and spray some foliar fertilizer after the budding period. The base fertilizer mainly uses organic fertilizer, such as chicken manure, etc.; the top dressing mainly uses nitrogen fertilizer, such as urea, plant ash, etc. The base fertilizer is mixed directly into the substrate after preparation. Top dressing can be diluted and used or buried in the soil. Foliar fertilizer is applied on the surface of the leaves; the frequency of top dressing is once every two weeks. Do not fertilize during the dormant period.

1. Fertilization time

Sunflowers still have a relatively high demand for fertilizer. First of all, when repotting, you need to use base fertilizer. Then when it enters the growth stage, it requires top dressing due to its vigorous growth. After the budding period, especially some foliar fertilizer should be applied.

2. Types of fertilizers

The base fertilizers selected are mainly organic fertilizers, such as some animal manure. The fertilizer used for top dressing mainly contains nitrogen-rich fertilizers, and potassium is also important, such as urea, plant ash, etc. Foliar fertilizers can use zinc, copper, manganese and other solutions.

3. Fertilization method

1. When using base fertilizer, just mix it directly with the substrate. If urea is used for top dressing, it can be applied after mixing with water; if plant ash is used, some small pits can be dug on the surface of the soil and then applied in these small pits. Foliar fertilizer is applied directly to the surface of the leaves.

2. When applying fertilizer, you need to pay attention to the fertilization interval. It can be controlled to about two weeks and does not need to be too frequent.

IV. Precautions

When the temperature is too high or too low, the sunflower may enter the dormant stage. At this time, you can stop fertilizing. Applying too much fertilizer can easily cause harm to itself.

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