Observation device for soil characteristic and observation method for soil characteristicp

Abstract

To provide a soil characteristics survey device capable of efficiently acquiring high precision data information about the distribution of soil characteristics in an agricultural field, and managing the data information collectively. The soil characteristics survey device is composed of a pedestal connected to the rear of the tractor, a control unit (a computer) mounted on the pedestal, and a soil excavating unit 50 attached below the rear end of the pedestal. While being towed by a vehicle such as a tractor, the device surveys in real time the distribution of soil characteristics in a given agricultural field. At the top of the control unit is attached a GPS antenna. The soil excavating unit 50 is composed of a shank 51 connected to the bottom of the pedestal and a sensing unit 52 which is fixed so the bottom of the shank 51 and advance in the soil approximately parallel to the ground at a predetermined depth. The control unit generates data information groups corresponding to the same soil samples, concerning soil characteristics to be detected or the detection signals of differently arranged sensors 57, 61, 62, 63, 64, 100 and the like.

Description

[0001] This application is a divisional application of a Chinese patent application with an application date of July 4, 2002, an application number of 02140173.X, and an invention title of "Soil Property Observation Device and Soil Property Observation Method". technical field [0002] The present invention relates to a soil property observation device for measuring soil properties and a soil property observation method, and more particularly, to a soil property observation device for collecting information on the three-dimensional distribution of soil properties in a farm. Background technique [0003] In recent years, from the viewpoint of protecting the environment and improving efficiency, in order to minimize the input of agricultural production materials, fertilizers or feeds corresponding to the unit area of ​​the farm for the production of crops, precision farming is being widely introduced. [0004] In the precision farming method, a relatively large-scale farm is di...

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Problems solved by technology

[0009] However, when sensors with different detection principles are used to detect multiple parameters in real time, due to the limitation of the installation position, various characteristics related to the soil are detected at positions where the sensors are separated from each other.

In this way, it cannot be guaranteed that the various characteristics detected are the characteristics of the same sample.

[0010] In addition, including the device described in the above publication, when grasping the distribution of soil properties in the farm, in the case of using a device that directly measures (detects) parameters reflecting soil properties on the spot, the detection element and the sample ( The relationship between soil) is susceptible to errors caused by external influences

For example, when detection is performed with the detection element in contact with the soil, it is easy to produce a change in the contact pressure between the detection element and the soil. On the other hand, when the detection element is separated from the soil for detection, it is easy to The distance between the detection element and the soil changes, so the accuracy and reproducibility of the data obtained under the influence of external factors are very poor

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