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A PLASTIC MATERIAL FILM FOR COVERING SEEDED SOIL OR SOIL DESTINED TO CONTAIN SEEDS FOR PROPAGATION
A PLASTIC MATERIAL FILM FOR COVERING SEEDED SOIL OR SOIL DESTINED TO CONTAIN SEEDS FOR PROPAGATION
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机译:一种用于覆盖种子土壤或将含有种子的土壤覆盖以进行繁殖的塑料薄膜
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摘要
There is disclosed the provision of a plastic film for covering soil for use in cropping or covering a frame for greenhouse effect, wherein at least part of the film has been stretched beyond its yield point prior to application. In alternative forms, the film undergoes a secondary stretch to form a predetermined pattern of weakness in certain localised areas of the film. The film may be photodegradable and biologically degradable to accelerate decomposition of the film when exposed to the elements.
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