A structure of a planting tray is formed by blow molding and made of thermoplastic materials, and includes multiple planting holes gradually narrow from top to bottom are evenly distributed on the planting tray, multiple relatively convex positioning protrusions are set on an inner side of each planting hole for holding around a foam filling member, the filling member is provided to support the planted plants passing through the planting holes, two relative side concave portions set on an upper edge of each planting hole are provided for fingers to insert to place and take the filling member. Furthermore, two main flow channels are respectively set on two side of the planting tray, the main flow channel may be respectively communicated with multiple secondary flow channels and minor flow channels as required, to place droppers or provide nutrient solution flowing.一種植栽盤之改良結構,係由熱塑性材料吹氣成型為一內部中空之植栽盤,於該植栽盤上均勻佈設有複數由上向下漸縮的植栽孔,於各植栽孔內側設有複數相對凸出的定位凸部,以供夾持於一發泡的填充件周側,並可利用該填充件支持穿過植栽孔的植栽植物,且於各植栽孔上端邊緣設有二相對的側凹部,可供手指伸入而便於取放該填充件,另於該植栽盤二旁側分別設有一主導流槽,該主導流槽可依需要分別經由複數副導流槽、次導流槽連通至各植栽孔,以供滴管置放或供栽培液的流通。2‧‧‧填充件3‧‧‧植栽盤31‧‧‧植栽孔311‧‧‧擴張開口313‧‧‧定位凸部314‧‧‧側凹部33‧‧‧主導流槽331‧‧‧副導流槽332‧‧‧次導流槽
