Below, the editor will explain in detail:

The application of organic fertilizers to improve soil organic matter levels is a valuable experience summarized by the Chinese working people in long-term production practice. The main sources of organic fertilizers include crop straw, green manure, manure, manure, compost, compost, cake fertilizer, silkworm excrement, fish manure, and pond mud.

1. Increase the application of organic manure

Composting, composting, cake fertilizer, and animal manure are all good organic fertilizers. With the advancement of technology, commercially produced organic fertilizers have spread to every corner of production. Choosing well decomposed and high-quality organic fertilizers is a direct and effective way to increase soil organic matter.

2. Promote straw returning to the field

Vigorously promoting the technology of mechanical crushing and returning corn straw to the field for composting is very effective in increasing soil organic matter. After the crop is harvested, the straw is chopped up and directly dumped into the soil without composting, which is called returning straw to the field. Returning straw to the field has a significant effect on promoting the formation of soil structure, fixing and preserving nitrogen, and promoting the release of insoluble nutrients in the soil.

In banana cultivation, the harvested pseudostems of bananas contain abundant water and nutrients, especially potassium. During the process of clearing the banana orchard, the pseudostems are left in a growth state of 1.2-1.5 meters in the ground, and the newly selected banana seedlings are fed for a period of time before returning to the field, which is also a way of returning straw to the field. The fruit stalks left after harvesting can be crushed and scattered in banana plantations if conditions permit, which is also a method of returning straw to the field and effectively increasing soil organic matter.

Fake stems of bananas are also a way of returning straw to the field

3. Planting green manure

Green manure refers to the fertilizer that is used to turn the still growing green leguminous plants into the soil. Planting green manure is a cultivation of soil. Effective measures to increase yield include common green manure such as sesbania, sweet clover, and overwintering hairy leaves. Green manure returning to the field can be specifically planted, or used for intercropping and intercropping, and then returned to the soil.

In banana plantations, dense planting of gramineous crops such as corn can be used. After the corn reaches maturity, it can be chopped up and spread throughout the garden before covering with soil.

4. Application of organic-inorganic compound fertilizer

Adding organic matter to traditional large element fertilizers, such as adding humic acid to some compound fertilizers or mixed fertilizers, can not only provide traditional nutrients but also supplement substances with soil improvement effects, which is also a good compensation for soil organic matter.

5. Combining land use with land conservation

With the development of agricultural production, the multiple cropping index is increasing, resulting in a decrease in organic matter content and fertility in many soils. Implementing crop rotation and intercropping systems can not only maintain and increase organic matter content, but also improve the quality of soil organic matter and activate aged humus. Water drought rotation, especially after converting dry land into paddy fields, can effectively increase soil organic matter.

In current banana cultivation, many problems caused by the decline of soil organic matter frequently harm banana production, such as acidification, rampant Panama disease, and difficulty in controlling root knot and perforation nematodes. Implementing appropriate fallow and crop rotation to increase soil organic matter content has a significant effect on suppressing the occurrence of pests and diseases.