How to build a greenhouse for raising shrimp in a greenhouse? The first requirement must be heat preservation, and the water temperature in the shed should be kept above 2℃ in the coldest time. It is best to use double-layer film for the greenhouse, and it is best not to use film on the side, but to use colored steel plates with heat insulation materials, and the height should not exceed three meters. Because the span of this greenhouse is relatively large, the span of a greenhouse like Yang Huixi has reached 24 meters, so while considering the good heat insulation effect, we should also consider the bearing problem. The scaffolding can choose wooden structure or rigid frame structure according to the conditions.
The greenhouse adopts this arch structure. According to the mechanical principle, this arch structure has better bearing capacity, especially in northern China, where there is more rain and snow. This arch structure is convenient for cleaning rain and snow, which can ensure the greenhouse to be used for many years. Each pond can be designed as a two-male structure, so that the span of each arch is only 12 meters, which greatly increases the firmness of the greenhouse.
this 4-meter-long, 24-meter-wide greenhouse will cost about 25, yuan if the pond does not need to be rebuilt. It is not enough to build a greenhouse as required. In order to increase the benefit of aquaculture, the density of shrimp culture in greenhouse will increase.
Using greenhouse to raise shrimp can increase the density of shrimp. Generally, the density of shrimps in greenhouses can reach 12, to 15, per mu, which is three times that of the original pond culture.
Shrimp culture in greenhouse: supporting measures in greenhouse
The greenhouse is closed, with little air exchange, low air pressure and high stocking density. If the position structure is still the same as that on land, problems will easily occur. What should the position structure of greenhouse farming be like? Do you need other supporting measures?
The stocking density has increased, which requires that the depth of the pond should be more than two meters than that of the original land culture. The pond should be designed in a wave shape, and a high-strength composite impervious membrane should be laid on the bottom and wall of the pond, and a sewage pipe should be laid in the middle of the bottom of the pond. This design is beneficial to sewage discharge. The higher the stocking density, the more oxygen demand. In order to aerate the water body, each greenhouse should be equipped with .75 to 1.5 kilowatts of water, and at the same time, a set of microporous aeration facilities is needed!