Late spring coldness environment simulating device for wheat field

Abstract

The invention relates to a plant growth environment simulator for a big field, and particularly relates to a late spring coldness environment simulating device for a wheat field; the late spring coldness environment simulating device comprises a transparent cylinder with opened upper and lower parts, the cylinder body is a double-layered vacuum structure, a conical positioning insert piece is arranged along the lower edge of the cylinder body; an ice holding pipe is mounted in the cylinder body, and spirally extended downwards from the upper end of the cylinder body, and closes to the inner wall of the cylinder body; a water seepage hole is arranged on the ice holding pipe; through the cylinder body, wheat in the field is covered, and the ice holding pipe is placed in the cylinder body; environment in the cylinder body is cooled through the ice holding pipe, thereby simulating the environment of the late spring coldness; the spiral ice holding pipe is large in cooling area, and the simulated cooling effect of the late spring coldness is good; the outdoor cooling operation process is simple and convenient; diameter of an air breathing opening of an air breathing cover is less than the diameter of the opening at the upper end of the cylinder body, thus the cold air in the cylinder is slow in dispersion. The plant growth environment simulator is simple and easy to operate, and low in production and processing costs.

Description

technical field [0001] The invention relates to plant growth environment simulation equipment for field use, in particular to a late spring cold environment simulation device for wheat field use. Background technique [0002] Late spring cold refers to the weather phenomenon in which the temperature rises rapidly in early spring, and the temperature in late spring (generally refers to April) is lower than in normal years. This kind of weather phenomenon has adverse effects on crops, which will reduce the yield of crops, or affect their normal growth; in order to observe the growth characteristics of plants in late spring, it is necessary to simulate the late spring cold environment. [0003] In March and April, wheat in the plain area will occasionally experience the late spring cold environment, and the temperature is 0-4°C during the late spring cold. Now it is necessary to cultivate wheat varieties with good resistance to large temperature differences in the field. It is...

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Problems solved by technology

[0004] Although the existing thermal insulation container can simulate the cold spring environment, it can only be simulated in the laboratory, and there is no portable thermal insulation container suitable for the field

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