The field is often covered with plastic film to prevent weeds from growing, keep the soil moisture and reduce the evaporation of water； when planting, holes will be made in the plastic film, and seeds or seedlings will be placed in the holes and then covered with soil. However, when the diameter of the hole is smaller than the diameter of the stem on the ground, the stem will be bound by the plastic film, which will affect the growth. In this creation, radial slit will be imprinted around the hole, so that the hole can be expanded easily after the stem is thickened, and it is more environmentally friendly to cooperate with the polyvinyl alcohol decomposable plastic film.田間常以塑薄膜覆蓋於土上使雜草不易生長，且可以保持土壤溼度，降低水份之蒸發；當要種植時會在塑膠薄上打孔，孔內放入種子或幼苗再蓋上土。但當幼苗成長莖變粗時，孔之直徑如小於莖在地面之直徑時，莖會有被塑膠薄膜束縛而至影響生長之情況，本創作在孔周圍壓印放射狀之細縫，如此莖變粗後可容易使孔擴大，且配合聚乙烯醇類之可分解塑膠薄膜，更是環保。
