The continuous cultivation of scallions is more harmful, not only the increase in disease, but also the reduction in production!
Shallot is a seasoning vegetable variety that is common in our lives. It is used for cooking or soup. As a scallion with a high consumption rate, the planting method is actually very simple, and the growth rate of the scallions is very fast, and the planting benefits are considerable. However, we must pay attention to the selection of soil, especially in the soil of the flail, because this will not only affect the yield, but also increase the probability of disease. Let's take a look at the harm of the continuous cropping of shallots together with the small series of Huinong.
1. Soil acidification
Relatively speaking, the yield of scallions is relatively high. If the yield is high, it is naturally necessary to consume many elements in the soil. Most of the consumed elements are alkaline, which will make the soil slowly. It is acidic. In addition, if you use fertilizer in the usual way, if you use some acidic elements in excess, it will remain. If planted in succession, the degree of acidity of the soil will become more and more severe.
If this continues, it will easily breed a lot of fungi in the soil, causing various diseases. In addition, the soil is also prone to problems with knots. Moreover, this situation will affect the absorption of other nutrients by the shallots, resulting in a problem of deficiency, resulting in a decline in production.
Second, deficiency syndrome
When planting shallots, there may be partial application of chemical fertilizers. If you continue to grow the plants, such as phosphorus and nitrogen in the soil, there will be more serious imbalances, which will affect the absorption of other elements by the shallots. Caused by deficiency.
There are some elements, although the usual demand is not very high, but the lack of it will have a great impact, for example, if there is potassium deficiency, the plant will yellow, and the growth is very slow. If zinc is deficient, there will be spots on the leaves and slow growth will occur.
Third, the disease increased
There are some fixed diseases when planting shallots. If the next planting is still scallions, these pests in the soil will continue to find the host. In this case, the harm will occur again and the impact will be even greater. The soil for continuous cropping is significantly larger than the probability of soil for the first planting.
The above is the harm of the cultivation of continuous cultivation of shallots compiled by Huinong. It can be said that if the scallions are continuous, the damage is really very large, and the roots of the scallions will slowly yellow, and then the new roots will be less. The leaves of the above plants are not so green, and they are prone to spots. In this case, it is easy to cause a reduction in production, or a large area of ​​death. Therefore, growers must be careful not to make continuous crops when planting shallots.
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