Soil bioavailable nitrogen and phosphorus flow path control system and method there
A technology of flow path control and soil biology, applied in the direction of analysis, instrument, color/spectral characteristic measurement by chemical reaction of materials, etc. Effect
Active Publication Date: 2020-04-14
HENAN AGRICULTURAL UNIVERSITY
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[0005] Using traditional detection methods for detection, due to many external factors, the detection accuracy is low
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[0025] In order to further explain the technical means and effects that the present invention takes to achieve the intended purpose of the invention, below in conjunction with the accompanying drawings and preferred embodiments, a soil biologically available state nitrogen and phosphorus detection system and method thereof proposed according to the present invention, its The specific embodiment, structure, feature and effect thereof are described in detail as follows. In the following description, different "one embodiment" or "another embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.
[0026] It should be noted that when an element is referred to as being “disposed” or “connected” to another element, it may be directly on the other element or there may be an intervening element. In addition, the terms "first", "second", etc. are u...
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The invention relates to the technical field of soil bioavailable state element detection, in particular to a soil bioavailable state nitrogen and phosphorus detection flow path control system and method. The system comprises a chemical reaction pipeline for extracting a soil sample and a chromogenic reagent, a detection pipeline for testing a sample solution and an automatic cleaning pipeline. The chemical reaction pipeline comprises a uniform spiral ring, a ninth joint, a thirteenth joint, a chemical reaction cavity, a first peristaltic pump, a second three-way joint, a first pinch valve, asecond pinch valve, a first waste liquid bottle and a microscale sample injection branch The sample detection pipeline comprises a first photoelectric liquid level switch, a second photoelectric liquid level switch, a third pinch valve, a fourth pinch valve, a fifth pinch valve, a third three-way joint, a fourth three-way joint, a fifth three-way joint, a second peristaltic pump, a water bath heating unit, a photoelectric detection unit and cleaning liquid; and the automatic cleaning pipeline comprises sixth to eighth three-way joints, sixth to eighth pinch valves, an acid solution, an alkaline solution and deionized water. According to the invention, automatic analysis of soil bioavailable nitrogen and phosphorus detection is realized, and the detection efficiency and accuracy are improved.
Description
technical field [0001] The invention relates to the technical field of soil biologically available element detection, in particular to a soil biologically available nitrogen and phosphorus flow path control detection system and a method thereof. Background technique [0002] Soil biologically available nitrogen and phosphorus refer to elements that can be directly absorbed and utilized by plants, and are closely related to crop yield. Excessive biologically available nitrogen and phosphorus in the soil can flow into rivers, lakes and groundwater through leaching or surface runoff, causing damage to the farmland ecological environment. Through experiments, the nitrogen and phosphorus element content in the soil types of each area is obtained, and the soil element is roughly calculated. The effective state content and effective nutrient supply level can enable fertilizer experts to formulate scientific and effective fertilization decision-making plans, and reduce the damage ca...
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Login to View More IPC IPC(8): G01N21/01G01N21/27G01N21/75
CPCG01N21/27G01N21/75G01N21/01G01N2021/752G01N2021/754G01N2021/0112
Inventor 胡建东李冬贤马刘正宋得单苏睿张燕燕李振峰
Owner HENAN AGRICULTURAL UNIVERSITY