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The second is that the sandy land covers the mulch, and the ground temperature is too high at noon, especially in the case of drought, which is harmful to crops.
Third, on clay ground in clay fields, the mulching of the mulch and the ground is not easy to be blown by the wind, causing damage to the membrane material and losing its effectiveness.
Fourth, due to the shortage of fertilizers in barren fields, the poor fields can not meet the demand of crops, and the cover film also has no effect of increasing production and income.
Fifth, excessive weedy land in many grass fields. Although herbicides were sprayed before sowing, some weeds with underground rhizomes still punctured or pushed up the membranes.
Five types of fields are not suitable cover film
First, in addition to the rainy season in pure dry fields, the long-term drought of cultivated land cover film not only fails to achieve its intended effect, but also aggravates drought conditions.
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