What are the roles of mulch in crops?

Release time:2023-12-01 Number of views: 114

There are many kinds of mulch, after crop cultivation will use mulch, so what is the role of mulch in crop use?

1. Heat preservation and warming, and promote the dissolution and release of nutrients in the soil layer.

2. Moisturizing, enhance the survival rate.

The soil water content of the field, in addition to irrigation, mainly from rainfall. After covering the film, on the one hand, due to the isolation of agricultural film so that the soil water content evaporation is reduced, slow dissipation; and produce water droplets in the film and then fall into the soil surface, reducing the loss of soil water content, and play a role in preserving the effectiveness of soil water content. On the other hand, the agricultural film can also be in the rainfall is too large, to prevent a lot of rain into the ridge body, can play the effect of flood prevention.

3. Promote growth and development.

Application of mulching, soil temperature and humidity increase, beneficial to early and fast growth, promote the growth and development of plants. Mulching shortens the growing period to about one week compared to the field without mulching.

4. Reduce the damage of weeds and aphids.

Mulching can inhibit the growth of weeds. General mulching than non-mulching weeds reduced by more than one-third, such as fusion application of herbicides, weed control is more effective. After spraying herbicides, the weeds can be reduced by 89.4--94.8% in the case of mulching than in the case of not mulching. Agricultural mulch film has a reflective effect and can partially repel aphids, inhibit aphid breeding and reproduction, and mitigate damage and disease spread.