Causes of rotting roots of honey pomelo and its countermeasures

In the process of honey pomelo plant, farmers often encounter the problem of root rot, which seriously affects the yield of honey pomelo, and sometimes causes dead plants, so what is the cause of root rot of honey pomelo? Let's follow the editor to take a look at the reasons for the rotten roots of pomelo and the countermeasures.

First, the reasons for the rotten roots of honey pomelo

1. Improper fertilization

The long-term application of Ahufei during fertilization resulted in a serious shortage of soil organic fertilizer, loss of living environment of beneficial biological bacteria, flooding of harmful bacteria, damage to roots by fungi, resulting in rotten roots and dead trees. In addition, the lack of soil organic fertilizer will cause soil consolidation and poor permeability, which will also affect the root growth and cause rotten roots.

2. Application of rotten farm manure

When a large amount of immature fermented farm manure is applied directly, a large number of bacteria, pests and salts will cause serious damage to the roots, and the heavy will directly cause rotten roots and dead plants. In addition, when applying fertilizer, acupoints and ditches are mostly used, and it is often small to dig trenches (holes), resulting in root burning death is also a common phenomenon.

3. Neglect of soil improvement

The orchard does not prepare the land for a long time, and the weeds in spring and summer mostly rely on herbicides, one of which only eliminates weeds, but it does not dredge the air permeability of the soil, which causes the soil to be in a solidified state for a long time, which will cause the root system of fruit trees to move to the surface, which is neither drought-resistant nor waterlogged. After rain, the soil permeability is poor, which will cause suffocation and a large number of fallen leaves.

4. Poor drainage

In the long-term rainy and high temperature season, fruit trees have been seriously damaged due to improper fertilization, coupled with long-term immersion in water, lost their original absorption function, and long-term high temperature evaporation, which is an important cause of defoliation and death of fruit trees.

II. Countermeasures

1. Change the consciousness of fertilization

It is advocated to apply farm manure, especially high-quality bio-organic fertilizer, and nitro compound fertilizer can be used as supplement in the case of insufficient nitrogen, phosphorus and potassium fertilizer. Farm manure must be fully retted and matured before use, in addition, chicken manure, pig manure, cow manure and other hormones, fire alkali, salt, etc., must be mixed with soil in the application, second, it is not suitable for continuous cropping excessive application.

2. Improve the method of fertilization.

The use of fermented farm manure, must be pounded fine spread evenly, in turning into the soil, prevention and treatment of ditch fertilization is too concentrated and root burning. Apply bio-organic fertilizer and compound fertilizer. Whether it is a circular or radial trench, it must be a radial trench, the second is that the annular trench must be long, and the third is that the depth should reach 30 cm.

3. Strengthen soil management.

For soil management, soil ploughing should be carried out once a year in autumn, which can not only maintain good soil permeability, but also prevent roots from leading to the surface layer. We should use less herbicides in spring and summer. We can choose a micro-tiller to kill weeds by loosening the soil in time to keep the topsoil loose and well ventilated. In case of heavy rain, we should loosen the soil in time after the rain to prevent the root system from suffocating and a large number of fallen leaves.

4. Strengthen drainage

Through the whole planing orchard in the orchard, the height around the trunk is increased by 15-20 cm to form a ridge to prevent water from accumulating under the tree after heavy rain.

The above is the introduction of the root causes and countermeasures of honey pomelo. I hope I can help you. If you want to know more about it, please follow us.