Greenhouse agricultural film is an indispensable and important material for the development of modern agriculture. Greenhouse film can play a key role in the vigorous growth of crops. However, not any field is suitable for the use of greenhouse agricultural film. The following fields are not suitable for mulching greenhouse film:
First, clay fields: on clay soil, the agricultural film of the greenhouse is not tightly attached to the ground, which is easy to be blown up by the wind, damaging the film material and losing its effect.
The second is pure dry land: except for the rainy season, long-term drought cultivated land to build greenhouse agricultural film not only does not play its due role, but also aggravates the drought.
Third, barren fields: due to the shortage of fertilizer in barren fields, crop needs cannot be met, and covering agricultural film cannot increase production and income.
Fourth, grassy fields: cultivated land with too many weeds, although herbicides are sprayed before planting, some weeds propagated by underground rhizomes will still penetrate or jack the membrane.
Fifth, sandy soil fields: sandy soil covers greenhouse agricultural film, and the ground temperature is too high at noon, especially in drought, which is harmful to crops.