Advantages of Biodegradable Mulch
Biodegradable mulch is a kind of environmentally friendly mulch, compared with traditional mulch, it has the following advantages:

1. Environmental protection: Biodegradable mulch film is prepared with biodegradable plastics as the main raw material, which can be degraded by microorganisms under the natural environmental conditions, and will not cause pollution to the soil.

2. Soil protection: Biodegradable mulch can increase soil temperature, maintain soil moisture and soil structure, thus promoting plant growth. At the same time, it can also prevent pests from attacking crops and diseases caused by certain microorganisms.

3. Inhibit weed growth: Biodegradable mulch can effectively inhibit weed growth, reduce the use of pesticides, and lower agricultural production costs.

4. Fast degradation: Biodegradable mulch film has a fast degradation process and can be completely degraded within a certain period of time, which will not cause long-term pollution to the soil.

Classification of Biodegradable Mulch
Biodegradable mulch is mainly divided into two types:

1. completely biodegradable mulch film: made of natural polymer materials, such as starch, cellulose, chitosan, etc. These materials can be completely decomposed by microorganisms.

2. Additive biodegradable mulch: made by adding natural or synthetic polymers with biodegradation characteristics or biodegradation promoters, processing aids, etc. on the basis of general-purpose plastics, after mixing.

Degradation process of biodegradable film
The degradation process of biodegradable film is caused by microorganisms such as bacteria, fungi and actinomycetes, which erode the plastic film, and then hydrolyze, ionize or protonate the polymer components through the growth of the cells, and then undergo mechanical damage and split into oligomer fragments. The enzymes secreted by fungi or bacteria decompose or oxidatively degrade the water-soluble polymers into water-soluble fragments, generating new small molecule compounds until they are finally decomposed into carbon dioxide and water.

Precautions for use
Although biodegradable mulch film has many advantages, it still needs to pay attention to reasonable use and management in the process of use to avoid negative impacts on the environment and crops. Specific precautions are as follows:

1. choose appropriate biodegradable mulch, and select different types of mulch according to the needs of crops and the growing environment.

2. Reasonable use of mulch, avoid overuse or improper use.

3. do a good job of recycling and disposal of the film to avoid pollution of the environment. 4. pay attention to the quality of the film.

4. pay attention to the quality of mulch, choose good quality mulch, avoid using poor quality mulch to cause damage to crops.

Translated with DeepL.com (free version)