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Soil-fixation mechanical in-situ determinator for crop root-soil complexes and applications thereof

A technology of root-soil complex and soil-fixing mechanics, applied in the agricultural field, can solve the problems of time-consuming and labor-intensive, simple soil-fixing ability detection method, etc., and achieve the effect suitable for popularization and application.

Inactive Publication Date: 2013-02-27
YUNNAN AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, so far, the detection method of soil fixing ability is simple and requires professional personnel to detect, which is time-consuming and laborious, and there is no good solution

Method used

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  • Soil-fixation mechanical in-situ determinator for crop root-soil complexes and applications thereof
  • Soil-fixation mechanical in-situ determinator for crop root-soil complexes and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as figure 2 As shown, the in-situ measuring instrument for soil solidification of crop root-soil complex of the present invention includes a shear box 1, a pressure generating device 2, a fixing device 3, and a distance measuring device 5, and a pressure gauge 4 is provided on the pressure generating device. The pressure generating device 2 is located between the shear box and the fixing device 3 .

[0035] The shear box 1 is made of a steel plate with a thickness of 1.0 cm, and the specification of the shear box is length × width × depth = 30.0 cm × 30.0 cm × 10.0 cm. The displacement of the lower mound quadrat. The design of the shear box should fully consider the root growth status of crops and herbaceous plants, so that the measurement results can truly reflect the fixing ability of the root system to the soil.

[0036] The pressure generating device can generate a rated tensile force of 20T, and the accuracy of the distance measuring device can reach 1μm. Fi...

Embodiment 2

[0041] The crop root-soil composite solid soil mechanics in-situ tester in this example is similar to embodiment 1, except comprising shear box, pressure generating device, fixture, distance measuring device, also comprises processor and display, pressure The manometer (pressure sensor) of the generating device transmits the real-time pressure value to the processor, and the ranging device (such as a displacement sensor) transmits the real-time shear box displacement value to the processor, and the processor draws a displacement pressure map according to the pressure value and displacement value , and display the current pressure value, displacement value and displacement pressure map on the monitor.

[0042] In addition, a memory may be further included for storing measured data. Rules can also be preset in the memory, for example, in the case of a fixed pressurization rate, the higher the ratio of pressure to displacement, the stronger the soil-fixing ability. Through the p...

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Abstract

The invention provides a soil-fixation mechanical in-situ determinator for crop root-soil complexes, which comprises a shear box, a pressure generator, a distance measuring device and a fixing device, wherein the pressure generator is located between the fixing device and the shear box, the pressure generator is provided with a pressure gauge, the pressure generator is used for providing an acting force for the shear box and determining the magnitude of the acting force, and the distance measuring device is used for measuring the displacement of the shear box. The invention also provides applications of the determinator in testing the soil-fixation capacity of crops. By using the soil-fixation mechanical in-situ determinator for crop root-soil complexes disclosed by the invention, the mechanical situation of crop root system soil can be determined simply and rapidly, and the soil-fixation capacity of crop root systems can be obtained through comparing, thereby providing references for the selection of soil-fixation crops.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to an in-situ measuring instrument for soil-fixing mechanics of crop root-soil complexes. Background technique [0002] my country is one of the countries with the most serious water and soil loss in the world, and the distribution of water and soil loss is wide and the area is large. According to reports, the area of ​​water and soil erosion in my country is 3.56 million km2, accounting for 37% of the total land area. The erosion forms are diverse and complex. The characteristics of gravity erosion such as hydraulic erosion, wind erosion, freeze-thaw erosion and landslide debris flow are different and intertwined. The causes are complicated. According to statistics, the total amount of soil lost in China reaches 5 billion tons every year. The total annual soil loss in the Yangtze River Basin is 2.4 billion tons, of which the total annual soil loss in the upper reaches reache...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08
Inventor 郑毅范茂攀李永梅汤利毛研婷
Owner YUNNAN AGRICULTURAL UNIVERSITY
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