Plastic film mulching is a modern agricultural production technology. The effect of early maturation and yield increase can generally be obtained by plastic film mulching cultivation.
Although plastic mulch has a great positive effect in agricultural production, improper use will also have many negative effects, especially the mulch left in the soil. For example, the following points are common negative effects:
1. The plastic film currently used is usually difficult to degrade and remains in the soil causing pollution.
2. It affects the infiltration of soil moisture and the permeability of soil.
3. Although mulching has the effect of water retention, it also prevents external precipitation from entering the ridge body. If it encounters continuous rainfall, it will cause serious water damage, because the evaporation of soil moisture under mulching is blocked.
4. Obstruct the movement of water and fertilizer in the soil.
5. Residual film causes soil compaction.
6. It is not conducive to the rooting and germination of crops, causing difficulties in the growth and development of crop roots and affecting normal growth and development.
Stone paper mulch is a kind of degradable mulch, which will not cause soil damage. Its own material is mainly calcium carbonate. Generally, the condition for degradation is that it will be digested in the second half of the year. Normally, it can be reused several times.
