Potatoes, rich in starch, are tuberous vegetables that many people like to eat. Xiao Bian is one of them. Potatoes need a lot of fertilizer during the whole growth process. If you want high yield, you need more reasonable fertilization methods. But many people don't know how and when to apply fertilizer. So today, hoe manufacturers have brought you high-yield fertilization technology for potatoes. Let's have a look!
1. Demand characteristics of fertilizer
Different growth stages of potatoes require different fertilizers, but they also require more nutrition. For example, when potatoes germinate after sowing and enter the seedling stage, they need a lot of nitrogen and potassium fertilizer. The demand for two kinds of fertilizers is about 1/5 of the total, and the demand for phosphate fertilizer is small. At the bud stage, the demand for potassium fertilizer is large, followed by nitrogen fertilizer and phosphorus fertilizer. The demand for nitrogen and phosphorus increased at maturity and expansion stages. Therefore, when applying fertilizer, fertilizer nutrition needs to be matched according to soil fertility and potato growth stage.
2. Basic fertilizer
Potatoes like cool environment and need fertile and soft soil. Due to the short growth period of potatoes, a large proportion of fully decomposed base fertilizer should be used for fertilization. This can effectively improve the soil planting environment and promote the emergence and growth of potatoes. When applying chemical fertilizer, base fertilizer is important. When using farm manure, nitrogen, phosphorus and potassium should be properly combined to improve the quality of potatoes. Nitrogen, phosphorus and potassium are the basic nutrients for plant growth. Only by ensuring adequate nutrition can potatoes grow well and increase yield.
3. Surface treatment
The hot and rainy environment in summer is an important time to water potatoes. One topdressing is seedling protection fertilizer, when 80% of seedlings grow to 12-16cm. Top dressing can be mixed with urea to promote the growth of plant stems and leaves. The second application of potato fertilizer should be applied during potato growth period and tuber growth period to meet the nutritional requirements of potato expansion. The second fertilization is mainly nitrogen, and the amount is determined according to the plant growth.
4. Potash fertilizer
According to the experience of planting potatoes, the demand for potash fertilizer is large. Due to the high yield of potatoes, the demand for potassium fertilizer naturally increases. When the potato is in the potato promotion stage, the corresponding potassium sulfate shall be applied according to the planting area, and then the ridge and soil shall be well prepared. In addition, it is carried out together with intercropping weeding. Sufficient potassium fertilizer can significantly increase potato yield. Therefore, potash fertilizer can be properly applied according to the planting situation during the planting process to improve the potato yield.