How to Fertilize Potatoes for High Yield? A Detailed Guide to Practical Fertilization Methods
Potatoes are very rich in starch and are a tuber vegetable that many people enjoy eating, and the editor is one of them. Potatoes have a relatively high nutrient demand throughout their entire growth period, so if you want a high yield, you need a fairly reasonable fertilization method. But many people don't know how to fertilize or when to fertilize. So today the editor brings you high-yield fertilization techniques for potatoes. Let's take a look!
1. Nutrient Requirements
Potatoes have different fertilizer needs at each growth stage, but their nutritional requirements are also fairly comprehensive. For example, after potatoes are sown and the seedlings emerge and reach the seedling stage, they need large amounts of nitrogen and potassium fertilizer, with the demand for these two fertilizers reaching about 1/5 of the total, while the demand for phosphorus fertilizer is relatively small. Then, when they reach the flowering and bud stage, the demand for potassium fertilizer is greatest, followed by nitrogen and phosphorus fertilizers. At the final maturity and tuber-bulking stage, the demand for nitrogen and phosphorus increases. Therefore, when fertilizing, you must match the fertilizer nutrients well according to soil fertility and the potato's growth stage.
2. Base Fertilizer
Potatoes like a cool environment and require fertile, loose soil. Because the potato's growth period is relatively short, a relatively large proportion of fully decomposed base fertilizer should be used when fertilizing. This can effectively improve the soil's growing environment and promote potato emergence and growth. Base fertilizer is the most important part of fertilization. While using farmyard manure, it should also be properly combined with nitrogen, phosphorus, and potassium to improve potato quality. Nitrogen, phosphorus, and potassium fertilizers are the basic nutrients for plant growth. Only by ensuring sufficient nutrients can potatoes grow better and yields increase.
3. Topdressing
The hot, rainy environment of summer is an important time for topdressing potatoes. The first topdressing is the seedling-preserving fertilizer, applied when 80% of the seedlings have grown to 12-16 cm. When topdressing, combine it with intertillage and hilling, and the topdressing fertilizer can use urea mixed with water to promote stem and leaf growth. The second topdressing is the tuber-setting fertilizer, applied during the potato's branching stage and tuber growth stage to meet the nutritional needs of potato bulking. The second fertilizer is mainly nitrogen fertilizer, and the amount used is determined according to the plant's growth condition.
4. Potassium Fertilizer
Based on experience in growing potatoes, potatoes have the greatest demand for potassium fertilizer. Because potatoes have a relatively high yield, the demand for potassium fertilizer naturally increases. When potatoes enter the tuber-promoting stage, apply the corresponding amount of potassium sulfate according to the planting area, then do the ridging and hilling work well. Also carry it out together with intertillage and weeding. Sufficient potassium fertilizer can significantly increase potato yield, so during the growing process we can appropriately apply potassium fertilizer according to the plant's condition to increase potato yield.
The above is a brief introduction to potato fertilization methods. In fact, it is also about the potato's demand for certain fertilizers. Nitrogen, phosphorus, and potassium are essential as basic nutrients. However, magnesium, calcium, and other elements should also be applied in appropriate amounts to ensure that potatoes have sufficient and comprehensive nutrition during growth. That's all for today's introduction. This article is for reference only, and we hope it can help everyone.