Root rot of Angelica sinensis and its prevention

Angelica sinensis is a common traditional Chinese medicine, which has the effects and functions of tonifying blood circulation, regulating menstruation and relieving pain, moistening intestines and laxation, etc., its market demand is greater, so there are more and more people planting, but it is easy to rot root phenomenon in the process of planting Angelica sinensis. So what causes the rotten roots of Angelica sinensis? How to prevent and cure it? Let's get to know it.

First, the root causes of Angelica sinensis

The main results are as follows: 1. diseases are easy to occur in the environment of high temperature and high temperature. high temperature is beneficial to the reproduction of bacteria, and high humidity is disadvantageous to the development of root system. In rainy areas in summer and autumn, root rot is easy to occur in low-lying areas with poor drainage.

2. Continuous cropping of land can easily lead to serious disease.

3. When there are more underground pests such as grubs and golden needles, it will also cause more wounds in the root system of Angelica sinensis and give an opportunity for bacteria to invade.

4. Diseased bodies and bacteria-carrying soil can also be transmitted through water flow, human beings, animals, farm tools and immature soil manure.

II. Prevention and control methods

1. Site selection and seed selection

It is best to choose sandy soil with good drainage and strong permeability for cultivation, reasonable crop rotation, disinfection of soil before transplanting, selection of robust disease-free seedlings for transplanting, and seed dressing treatment with new high-fat membrane.

2. Strengthen the field management

Proper application of phosphorus and potassium fertilizer can not only enhance the disease resistance of plants, but also reduce the occurrence of diseases through ploughing and weeding. If the climate is dry, water should be watered in time to preserve soil moisture. After slow leaf application, foliar fertilizer and plant growth regulators can be sprayed to increase photosynthetic efficiency, synthesize photosynthate, transport nutrients to the root system, improve nutrient conversion rate and soil loosening capacity, and promote expansion according to.

3. Chemical control

After discovering the diseased plant, it should be pulled out and burned in the field in time, and then sprinkled with a layer of lime powder in the disease hole to eliminate the bacteria in order to avoid spread, and then sprayed with methyl topiramate plus an appropriate amount of new high-fat membrane to prevent the disease from spreading. If it is a large area of disease, must be timely spray prevention and control, so as not to cause a large area of production reduction.

The above is the root rot of Angelica root causes and prevention methods, hope to help you, want to know more related knowledge, please pay attention to us.