A forestry seedling apparatus comprising three fixed side boards (9) and a movable side board (7) installed on a bottom board (14). The fixed side boards (9) are placed on the three sides of the bottom board (14) while the movable side board (7) is placed on the fourth side thereof. The movable side board (7) is attached to the fixed side boards (9) by clasps (6). A sprinkler (5) is installed inside the movable side board (7) and a water storage tank (1) is provided outside the bottom board (14). The water storage tank (1) is connected to the sprinkler (5) by pipes (3) and a pump (4) is provided on the pipes (3). A main controller (12) is installed at the bottom end of the bottom board (14). Inside the bottom board (14) is installed a moisture sensor (13) connected to the main controller (12). The main controller (12) is also connected to the pump (4), and thus moisture can be measured with the moisture sensor (13). Moisture can be timely replenished to the seedling trays by the pump (4) to ensure water resources are evenly distributed.
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