What factors affect Welsh onion yield? The latest analysis is here
The Welsh onion is a very popular garnish in our daily lives. It is welcomed by many people, so there are now a great many people growing Welsh onions. The cultivation technique for Welsh onions is relatively simple, and the yield is relatively high, but during the growing process, some problems can also easily arise and affect the yield of Welsh onions. So what factors affect the yield of Welsh onions? Below, the editor will give everyone a brief introduction. Let's take a look together!
1. Soil
Soil is crucial to the growth of Welsh onions. At present, in some main Welsh onion production areas in China, the soil is saline-alkali land. The surface layer of saline-alkali soil generally contains salt. This kind of soil has very poor permeability. If Welsh onions grow in this kind of soil, it will affect their nutrient absorption and is very unfavorable to their growth. Moreover, in severe cases, it will cause the roots of Welsh onions to rot and die. This reduces the yield of Welsh onions. Therefore, if you want to increase the yield of Welsh onions, you must first pay attention to the choice of soil.
2. Continuous cropping
Welsh onions cannot be continuously cropped. If Welsh onions are planted in the same field repeatedly, they will be extremely prone to soil-borne diseases. Moreover, the pathogens in the soil will accumulate more and more, leading to severe damage from diseases and pests such as Welsh onion viral disease, purple blotch, and onion maggots. In addition, Welsh onions have the growth characteristic of selective absorption. If they are continuously cropped for a long time, it will not only reduce the growth capacity of Welsh onions but also change the physiological properties of the planting soil, which has a very large impact on the growth of Welsh onions, leading to a decline in yield and quality. Therefore, Welsh onions should be rotated for at least more than two years.
3. Fertilization
If you want to increase the yield when growing Welsh onions, then fertilization work is very important. However, if the base fertilizer and topdressing are unreasonable during fertilization, it is very unfavorable to the growth of Welsh onions. For example, if too much nitrogen fertilizer is applied, it will not only cause excessive vegetative growth of Welsh onions, but also cause an imbalance in the nutrient ratio during their growth. Nor should too much phosphate fertilizer be applied. If the phosphorus content in the soil is too high, it can easily cause soil compaction and reduce soil permeability. It will also affect the roots' absorption of other nutrients, such as potassium and iron, directly affecting the yield of Welsh onions.
4. Diseases and pests
No matter what crop is grown, the prevention and control of diseases and pests is indispensable. Welsh onions are naturally no exception. When growing Welsh onions, you must pay attention to focusing on disease and pest control. If prevention and control are improper, diseases and pests spread too quickly. This will not only increase the cost of disease and pest control and affect later control work, but the yield and quality of Welsh onions will also be significantly affected. Therefore, everyone should frequently observe the growth of Welsh onions and treat the symptoms promptly once disease or pest symptoms are found.
The above is a brief introduction to the reasons affecting Welsh onion yield. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!