Potato is a chlorine-free crop, and a large amount of chlorine-containing chemical fertilizer will affect the synthesis of starch in potato and reduce the quality of potato tuber. Therefore, potash fertilizer such as potassium chloride should not be used in fertilization, but chlorine-free potash fertilizer such as potassium sulfate should be used.
What fertilizer is used to fertilize potatoes?
1, mainly potassium fertilizer
It is necessary to choose the right fertilizer to fertilize potatoes. Potatoes are plants that like potassium, so potassium fertilizer can be used as the main fertilizer for potatoes, but potassium fertilizer can not be used alone to avoid poor plant growth, and some phosphorus and nitrogen fertilizers are needed to make plants grow better. It is suggested that the local chef's high-potassium powder water-soluble fertilizer should be combined with the local chef's high-phosphorus and high-nitrogen powder water-soluble fertilizer to promote the better growth of potatoes.
2. Fertilization time
Potatoes should also be fertilized at the right time. Generally, plants can be fertilized in the morning or afternoon in spring, in the morning or evening in summer and in the afternoon in autumn.
3. Fertilization method
Potato fertilization should also choose the right fertilization method. Generally, when fertilizing potatoes, the fertilizer can be directly buried in the soil next to the plants, absorbed by the soil and then provided to the plants. If the plant is in a state of fertilizer deficiency, the fertilizer can be diluted and poured on the plant.
4. Preventive measures
When fertilizing potatoes, we need to pay attention to the amount of fertilizer. Generally, we need to reduce the amount of fertilization when the soil color is dark and increase the amount of fertilization when the soil color is light. If there is too much fertilization, we need to water a lot immediately to dilute the amount of fertilizer in the soil.