An air supply panel capable of forming a horizontal laminar flow in a plant growing room is provided. An air supply panel for a plant growing room 100 comprises a panel body 1 having an air inlet 11a through which air flows into an internal space, and at least part of a front wall 11 of the panel body 1, and has a large number of circular shapes. The perforated plate 2 having a plurality of air supply holes 2a, the lattice wall 3 suspended from the back surface of the perforated plate 2, the airflow correction chamber partitioned by the lattice wall 3, and the internal space of the panel body 1 communicate with the inlet 11a. An isolation wall 5 for separating the front chamber and the air supply chamber communicating with the airflow direction correction chamber, and an air volume adjusting hole 62 provided in the isolation wall 5 so as to connect the front chamber and the air supply chamber. And an air volume adjusting means 6 having a damper 61 for adjusting the opening area of the air volume adjusting hole 62 and adjusting the air volume flowing from the front chamber into the air supply chamber. A plurality of air volume adjusting means 6 are provided at different distances from the air inlet 11a. [Selection] Figure 1【課題】植物育成室内に水平層流を形成可能な給気パネルを提供する。【解決手段】植物育成室用給気パネル１００は、内部空間へ空気を流入する空気流入口１１ａを有するパネル本体１と、パネル本体１の表壁１１の少なくとも一部を構成し、多数の円形の給気孔２ａを有する多孔板２と、多孔板２の裏面に垂設される格子壁３と、格子壁３に区画される風向矯正室と、パネル本体１の内部空間を流入口１１ａに連通する前室と風向矯正室に連通する給気室とに隔離する隔離壁５と、隔離壁５に設けられ前室と給気室とを連通すべく隔離壁５に設けられる風量調節孔６２、及び風量調節孔６２の開口面積を調節するダンパー６１を有し前室から給気室へ流入する風量を調節する風量調節手段６とを備えている。風量調節手段６が、空気流入口１１ａから距離の異なる位置に複数設けられている。【選択図】図１
