Tidal soilless culture device and method for raising catkin-free poplar seedlings

Abstract

The invention discloses a tidal soilless culture device for raising catkin-free poplar seedlings. The invention further discloses a tidal soilless culture method for raising the catkin-free poplar seedlings. The tidal soilless culture device comprises a mounting frame, an extension mechanism movably mounted on one side of the mounting frame and a culture mechanism arranged at the upper end of the extension mechanism, when the nutrient solution is too much, a valve at a flow dividing pipe is opened, the redundant nutrient solution flows into a main flow pipe through overflow holes, and then the nutrient solution flows into a placing box; along with the increase of water in the placing box, a telescopic cylinder expands, a spring extends, the internal capacity of the telescopic cylinder is increased to be used for storing the nutrient solution, and a suspension part is always flush with the nutrient solution; the overflow holes can be blocked along with the decrease of the water level, and the height of the internal water level can be conveniently controlled; and when the nutrient solution is less, the water level is lower than the overflow holes, the suspension part is located at the lower ends of the overflow holes and cannot block the overflow holes, the spring in the telescopic cylinder contracts, the size of the telescopic cylinder is reduced, the nutrient solution stored in the telescopic cylinder can flow back into an outer cover again, and the use effect is good.

Description

technical field [0001] The invention relates to the technical field of raising seedlings without flocs, in particular to a tidal type soilless cultivation device and a cultivation method for raising seedlings without flocs. Background technique [0002] Poplar without catkins is a natural hybrid superior plant selected from the forest stand where the natural hybrid seedlings of Populus nigra I-69 participated in afforestation. Male, no flying catkins in spring; the main trunk is straight and round, the side branches are thinner, the leaves are small and dense, the crown layer is not obvious, and the trunk taper is small. Leaf blade triangular, base truncated, leaf margin wavy obtuse serrate. The axillary buds are 0.6-0.8cm long, triangular free and elongated. Fast growing, resistant to pests and diseases. Applicable range: Suitable ranges of Populus americana can be planted in Henan, Shandong, Anhui and other provinces. [0003] In the process of seedling-free poplar cul...

AI Technical Summary

Problems solved by technology

[0003] In the process of seedling-free poplar cultivation, soilless cultivation techniques are usually used, but the existing soilless cultivation techniques are not mature enough to control the internal water level, and after a certain period of cultivation, it is impossible to visually judge the flocculation-free poplar The height of the seedling growth cannot be seen with the naked eye, it is not easy to transplant, and the use effect is not good

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