1, plant ash
Plant ash, as a product of cooking or burning straw weeds in rural areas, has been discarded as garbage, but plant ash is still a good fertilizer, especially rich in potassium, which can improve the quality of crops with high demand for potassium. Plant ash is the "treasure" in leek planting.
2, cake fertilizer
Leek planted with cake fertilizer is not easy to breed leek maggots. Leek maggots are the main pests that harm the growth of leeks. They will eat the underground bulbs and leaf sheaths of leeks. Cake fertilizer is beneficial to the rooting culture and protection of leek, and the regeneration ability of leek will be greatly improved.
3. Organic fertilizer
For leeks over 5 years old, soil fertility and plant growth decline due to repeated harvesting, so it is necessary to increase the application of organic fertilizer to maintain it.
4. Nitrogen fertilizer
When we use nitrogen fertilizer for leeks, we need to use it in a timely and appropriate amount, otherwise it will easily cause fertilizer damage and root rot.
5. Diammonium phosphate
Diammonium phosphate can be used for leek, because diammonium phosphate contains not only nitrogen but also phosphorus, which can promote the growth of leek and improve the quality of leek.