How can winter potatoes achieve high yields? What to pay attention to

2019-01-11

Potato, also known as potato, is a common food and agricultural crops in our daily life, it is also widely planted in China, potato has a high nutritional value and cultivation value. The potato is not only a food crop, but also an important vegetable. It contains more protein than soybeans, with rich vitamins, starch and other substances. It tastes good, tastes good and is loved by people. So what do we need to pay attention to when we plant in winter to get high yields?


I. site selection

For winter potato, try to choose loose fertile soil, good permeability, convenient drainage, high dry light soil for cultivation. Potato in the process of planting, in addition to the soil has a great demand. When selecting plots, avoid restubble, which is the same crop that has been planted in recent years, and do not plant again this year because pathogens from the same crop have accumulated in the soil, causing disease. Affect yield and quality.



Second, fertilization management

If potatoes are to be highly productive, they need to be fertilized according to the state of the soil and what fertilizer is needed to achieve good growth. During the period from the beginning of potato formation to potato seed, the potato needs the most fertilizer, which accounts for more than half of the total fertilizer in the whole growth period.



Therefore, in the application of basic fertilizer, fertilizer to apply enough, most of the fermentation or is ripe farm manure mainly, each mu of land probably need to use about six cubic meters of farm manure. In the expansion phase of potato blocks, each mu was sprayed with 0.2% potassium dihydrogen phosphate solution about 100 kg, during spraying foliar fertilizer once or twice. Spray the potato stems and leaves evenly. In this way, a good nutritional supply can be achieved.


3. Pest control

In the process of potato growth, if the management is improper, it is easy to cause potato late blight, the most important thing is to do a good job in advance disease prevention. Late blight is a devastating disease, which spreads by air and spreads rapidly. It can cause a large number of rotten potatoes in the field and during storage and seriously affect the yield. The combination of prevention and treatment. For late blight, 70% aetaisheng wettable powder (95 g/mu) can be used, spraying once a week, even spraying 5 ~ 6 times.



If the above technical key points, seize the season, winter potato production will not be difficult to achieve high!