Prevention and control of serious death of ginger

Ginger is a common vegetable in our life, but recently, many farmers have responded that with the increase of rainfall in autumn, the problem of dead ginger trees is more serious, and some plots even lose harvest. So how to prevent and cure the serious death of ginger? Let's take a look at the main points of prevention and control with the editor.

1. Improve soil permeability.

The soil permeability is poor, the root system gets less oxygen, the root respiration is blocked, more harmful substances are produced, and the plant resistance decreases, which creates favorable conditions for pathogen invasion, which is also one of the main reasons for the serious death of Zingiber officinale. According to the experimental study, when the content of organic matter is high or sandy soil is high, the soil is loose and permeable, and the problem of dead trees is obviously lighter; while the water and fertility conservation capacity of clayey soil is strong, Rain Water infiltration is slow, permeability decreases after rainfall, and retting roots are easy to occur. Dead plants are more serious.

Prevention and control methods: the frequent rainfall is that farmers should find ways to improve soil permeability and avoid damage to the root system of Dajiang. The first thing is to cultivate the soil. It is an important period for Dajiang to cultivate soil in the first ten days of August. With the cultivation of soil, the root system of Dajiang is deeper, the permeability is naturally affected. Soil cultivation is often carried out with topdressing. In soil topdressing, it is suggested that appropriate amount of peat and fermented straw can effectively improve soil permeability and enhance stress resistance. In addition, the selection of humic acid fertilizer is also the basic measure to improve the poor soil permeability.

2. Soil sterilization

Soil deterioration and poor permeability often only lead to poor root growth and development, but will not cause a large number of dead trees, which are often caused by ginger blast and root rot. With the increase of rainfall, retting roots are easy to occur, which creates opportunities for pathogen infection and easily leads to the death of ginger trees.

Prevention and control methods: first of all, sterilize the soil to reduce the number of pathogens, once the death of turmeric leaves occurs, the root system should be checked in time, if there is ginger block, root rot, timely drug control, kill pathogens, control further spread in the control period. In addition, the disease of dead trees occurs quickly and spreads quickly, which is mainly related to the lack of beneficial bacteria in the soil. The continuous application of biological agents can effectively increase the number of beneficial bacteria, improve the soil ecology, and inhibit the picking of pathogenic bacteria to many extent.

3. Supplement nutrition

The root system of Zingiber officinale is weak, and it is also prone to diseases, which has a large root system and uneven nutrition. Many farmers still choose nitrogen, phosphorus and potassium-based fertilizers. Although ginger has a large demand for medium elements such as calcium and magnesium, farmers lack this awareness. Calcium fertilizer is very easy to react and precipitate with phosphate fertilizer, so it is rarely applied.

Control methods: in order to improve plant disease resistance, reasonable application of base fertilizer is the key, mainly fermentation organic fertilizer, to an appropriate amount of medium and trace element fertilizer, such as 50 key calcium magnesium phosphate fertilizer, boron, zinc, iron and other trace elements of 1-2 kg per mu. If there is no supplement of trace elements in the base fertilizer, it can be applied reasonably in combination with soil cultivation and watering during the plant growth period to supplement nutrition.

The above is the introduction of the serious prevention and control methods of the dead ginger. I hope it can help you. If you want to know more about it, please follow us.