Causes and control methods of sweet pepper death

Sweet pepper is a common vegetable, which has high medicinal value and economic benefits, but the phenomenon of dead plants in the planting process is becoming more and more serious, which seriously affects the yield of sweet pepper and brings huge losses to growers. So what are the reasons for the death of sweet pepper? How to prevent and cure it? Let's study together.

1. Soil consolidation

After watering, the soil water content is large for a long time, resulting in soil consolidation, resulting in poor soil permeability, while the root distribution of sweet pepper is shallow, soil consolidation will lead to its root hypoxia asphyxia, resulting in a serious phenomenon of death. Most vegetable farmers use mechanical operation in arable land, which will lead to particularly compact and uneven underlying soil, and even if the topsoil is flat, it will cause a small area of stagnant water between ridges and cause dead trees after irrigation.

Prevention and control methods: soil preparation must be intensive cultivation to ensure that the soil is loose, with good air permeability, watering should also pay attention to the method, should not be watered too much, after watering can be shallow hoe to break the soil consolidation state.

2. High temperature and humidity

When the ground temperature is too high and the humidity is high, the circumferential rot appears at the base of the stem of the plant, which leads to the death of the whole plant, which occurs from June to July, which is in the high temperature season. At this time, the seedlings are short, few leaves, can not form effective shade, high ground temperature, coupled with high humidity, it is easy to rot at the base of the stem in the environment of high temperature and humidity.

Prevention and control methods: sunshade net must be covered when planting in summer, and high temperature should be paid attention to. Proper watering can play a role in replenishing water and cooling. When humidity is high, ventilation should be strengthened, humidity should be reduced, and stem base should not rot and die.

3. Improper fertilization

Improper fertilization in the planting process caused root burning and death of trees, sweet pepper planting generally does not need centralized fertilization, let alone the application of incomplete rotten chicken manure and bean cake, which can easily lead to fertilizer burns and dead trees.

Prevention and control methods: farm manure should be applied after full ripening and fermentation, and the ground should be turned over after fertilization. Irrigation with water and stew shed after ridging can not only disinfect the soil and make soil moisture, but also avoid burning roots and causing dead trees.

4. Disease

There are three common diseases causing sweet pepper death, one is blight, the other is Sclerotinia sclerotiorum, and there is bacterial soft rot, all of these three diseases may cause sweet pepper death in the later stage.

Prevention and control methods: the effective prevention and control of dead trees is in the early stage of the occurrence of the disease, as long as the rot does not reach half a circle, remove the rotten part of the plant with a blade, and then smear the removed part with the mixture of Ziguoling and methyl topirazine. the disease must be cleaned up.

The above is the introduction of the causes and control methods of sweet pepper, hope to help you, want to know more related knowledge, please pay attention to us.