The latest key points of water and fertilizer management of potatoes

Potato is a very common grain vegetable in China, and its planting area is also very extensive. When growing potatoes, water nutrition is very important to their growth. Therefore, we must do a good job in water and fertilizer management when planting, so how should we do it? The following editor brings you the key points of water and fertilizer management of potatoes, let's have a look!

1. Water management

Potatoes can basically be watered without watering at the seedling stage. If you encounter a very dry phenomenon in the squatting seedling period, then you can pour a little water properly. Watering begins when potatoes enter the early flowering stage, because during the period from the beginning of the early flowering stage to the time when the stems and leaves of potatoes stop growing. It is when the tuber grows fastest, and the demand for water will gradually increase. And in this period of time, if there is a lack of water, it will also affect the absorption of nutrients. The moisture of the soil should be kept at about 70%, and it should not be too much. If it is too much, it will easily lead to excessive growth of potato plants, excessive consumption of nutrients, premature senility, lodging and other adverse phenomena.

2. Points for attention in watering

Although potatoes have a certain ability to resist drought, they should not be dry for a long time, otherwise it will have a certain impact on the quality and yield of potatoes. When watering, we should do a good job in water management according to various factors such as weather, precipitation and soil type. The amount of water should not be too large, nor should it be too small. If it is too large, it will cause cracks in the soil and affect the growth of potatoes, causing potatoes to be unable to breathe and lack nitrogen. It can easily lead to the early ripening of potatoes and the decrease of yield. And reasonable watering can also avoid soil deformities and avoid some unnecessary losses.

3. Fertilization management

Potatoes need to begin to absorb nutrients about half a month after germination. At this time, the demand for nitrogen and potassium fertilizer is relatively large, phosphate fertilizer is relatively less. When potatoes grow to the stage of tuber formation, the demand for nutrition will increase sharply, and the absorption rate of nutrients will be much faster. The nutrition at this time directly determines the yield and quality of potatoes. During the expansion period, the demand for potash fertilizer is high, followed by nitrogen and phosphorus. Finally, topdressing is needed in the mature period to ensure that there are certain nutrients to prevent the root from causing premature senility and affecting its normal growth.

4. Matters needing attention in fertilization

When applying fertilizer, we must pay attention to control the proportion and dosage of various nutrient elements, and do not overapply a certain kind of fertilizer. Avoid the lack of nutrition leading to poor growth of potatoes, but also very easy to produce fertilizer damage, seriously hindering the growth of potatoes. In particular, nitrogen fertilizer, although the right amount of nitrogen fertilizer can promote the growth of potatoes, but also pay attention to if overused. It will cause potatoes to flourish and grow, resulting in excessive nutrition consumption of potatoes, swelling of tubers and insufficient nutrition, resulting in a decrease in yield.

The above is a brief introduction to the main points of water and fertilizer management of potatoes. Water and fertilizer management of potatoes is essential when growing potatoes. So we must pay more attention to it! That's all for today's introduction. This article is for reference only. I hope it can help you all.