Lifting floating tray for raising seedlings

Abstract

The invention discloses a lifting floating tray for raising seedlings. The lifting floating tray for raising seedlings comprises a raising floating tray and a plurality of pneumatic lifting rods; each pneumatic lifting rod is formed by telescopically connecting two or more hollow rods by socketing; the uppermost hollow rod of every pneumatic lifting rod is fixedly connected to the raising floating tray in a manner of being perpendicular to the top of the raising floating tray; compressed air is injected into and discharged from an inner cavity of each pneumatic lifting rod to control telescoping of the pneumatic lifting rods to drive the raising floating tray to ascend and descend. The lifting floating tray for raising seedlings is low in manufacturing cost, simple to operate, convenient to use and easy to popularize and makes labor less intensive for tobacco farmers.

Description

technical field [0001] The invention relates to the field of agricultural floating crop seedling raising equipment, in particular to a lifting type seedling raising floating tray. Background technique [0002] At present, most of the tobacco seedlings are raised by floating. Because the surface of the pool is covered by the seedling tray, the contact surface between the liquid surface and the air is small, and due to the high density of the seedlings, the oxygen demand of the root system is high, resulting in insufficient oxygen supply to the root system, which inhibits the differentiation of root cells. The absorption function of the root system is weakened, so that the emergence uniformity is poor, the root system activity is low, and the growth potential of the tobacco seedlings is weak, which inhibits the improvement of the quality of the tobacco seedlings. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention ...

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Problems solved by technology

[0002] At present, most of the tobacco seedlings are raised by floating. Because the surface of the pool is covered by the seedling tray, the contact surface between the liquid surface and the air is small, and due to the high density of the seedlings, the oxygen demand of the root system is high, resulting in insufficient oxygen supply to the root system, which inhibits the differentiation of root cells. The absorption function of the root system is weakened, resulting in poor emergence uniformity, low root activity, and weak growth of tobacco seedlings, which inhibits the improvement of the quality of tobacco seedlings.

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