Plant root system night water delivery capacity measuring device

A technology of measuring device and plant root system, which is applied in the direction of measuring device, weighing, weighing equipment for materials with special properties/forms, etc. It can solve the problem of amplifying the relative change of pressure, high cost of soil moisture measurement, and large error in fixed-point measurement. and other problems, to achieve the effect of amplifying the relative change, reducing the measurement cost and maintenance cost, and improving the accuracy

Active Publication Date: 2019-04-26
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0007] Purpose of the invention: The object of the present invention is to provide a device for measuring the amount of water lifted by plant roots at night. The overall weighing method is used to measure the pressure change at night through a pressure sensor to obtain the amount of water lifted by the roots of the plant at night, and the upper soil is moved by gear transmission. The gravity is converted into the supporting force for the lower soil, amplifying the relative change of the measured pressure, greatly improving the measurement accuracy, and solving the shortcomings of the existing soil moisture measurement such as high cost, complicated steps, low accuracy, and large fixed-point measurement errors.

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  • Plant root system night water delivery capacity measuring device
  • Plant root system night water delivery capacity measuring device
  • Plant root system night water delivery capacity measuring device

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0029] like Figure 1-6 As shown, the reference signs are: outer shell 1, first bottom plate 2, inner shell 3, second bottom plate 4, first transmission bracket 5, pressure sensor 6, center bracket 7, floor 8, gear bracket 9, gear 10, second Two transmission brackets 11, wires 12, weight display 13, through holes 14, screws 15, first rack 16, second rack 17, bearing 18, gear teeth 19.

[0030] A device for measuring the amount of water lifted by plant roots at night, comprising an outer shell 1, a first bottom plate 2, an inner shell 3, a second bottom plate 4, a first transmission bracket 5, a pressure sensor 6, a center bracket 7, a floor 8, a gear bracket 9, and a gear 10. The second transmission bracket 11, wires 12, weight display 13, and through holes 14; the first bottom plate 2 is fixed in the middle of the outer shell 1, and there are...

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Abstract

The invention discloses a plant root system night water delivery capacity measuring device, and belongs to the technical field of soil water measuring. The device comprises an outer shell and an innershell with upper openings, a first base plate is arranged in the middle of the outer shell, and the outer shell is divided into an upper region and a lower region through the first base plate; a through hole is formed in the first base plate, the inner shell is arranged at the region below the first base plate, and a second base plate is arranged at the bottom of the inner shell; a center supportis arranged below the second base plate, and the inner shell is fixed through the center support; a pressure sensor is arranged between the center support and the second base plate, and the pressuresensor is connected with a weight displayer. Weight at the upper space is converted into supporting force at the lower space, the measuring range of the pressure sensor is narrowed, and the effect ofmagnifying the relative changing amount of pressure measured by the pressure sensor is achieved; meanwhile, the device is easy to assemble, low in operation requirement and convenient to use, the measuring cost and the maintenance cost are lowered, and on the basis, the requirement for measuring precision of the plant root system night water delivery capacity can be met.

Description

technical field [0001] The invention belongs to the technical field of soil moisture measurement, and in particular relates to a device for measuring the amount of water lifted by plant roots at night. Background technique [0002] In some areas of our country, the soil has poor water storage capacity and is in a state of dry top and wet bottom, while most of the roots of plants are often distributed in the upper soil. If the upper soil is in a relatively dry state, it will affect the growth and development of plants. [0003] The root water lifting effect refers to the difference in water potential of the soil in different parts of the plant root system under low transpiration conditions, mainly at night, which causes the root system in the lower moist area to absorb water and transport it to the upper root system in the dry area, and through this The water movement phenomenon in which part of the upper root system releases part of the water to the dry soil around the rhizo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01G17/04
CPCG01G17/04
Inventor 王志宇邵光成章坤卢佳吴世清高阳
Owner HOHAI UNIV
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