阅读说明：本技术 一种土壤有效成份分析方法 (Soil active ingredient analysis method ) 是由 郑敏 程希彤 于 2019-10-30 设计创作，主要内容包括：本发明公开了一种土壤有效成份分析方法,包括以下步骤：S1、取单位为10亩的待检测土地,随机分散选取10处各挖取15cm<Sup>2</Sup>土壤作为样品承装备用；S2、在步骤S1中挖取的土壤样品中加入定量的超纯水,搅拌混匀后,静置10min；S3、取步骤S2中静置后的土壤样品上层液体,滴至成分检测试纸上,观察颜色变化,根据颜色的变化判断土壤中氮含量,磷酸根,钾离子的含量。(The invention discloses a soil active ingredient analysis method, which comprises the following steps: s1, taking the land to be detected with the unit of 10 mu, randomly and dispersedly selecting 10 positions and respectively digging 15cm 2 Taking soil as a sample for bearing equipment; s2, adding quantitative ultrapure water into the soil sample dug in the step S1, uniformly stirring and standing for 10 min; s3, taking the upper liquid of the soil sample after standing in the step S2, dripping the upper liquid onto component detection test paper, observing color change, and judging the nitrogen content, phosphate radical content and potassium ion content in the soil according to the color change.)

1. A soil active ingredient analysis method is characterized by comprising the following steps: s1, taking the land to be detected with the unit of 10 mu, randomly and dispersedly selecting 10 positions and respectively digging 15cm ²Taking soil as a sample for bearing equipment;

s2, adding quantitative ultrapure water into the soil sample dug in the step S1, uniformly stirring and standing for 10 min;

s3, taking the upper liquid of the soil sample after standing in the step S2, dripping the upper liquid onto component detection test paper, observing color change, and judging the nitrogen content, phosphate radical content and potassium ion content in the soil according to the color change.

2. The method for analyzing active ingredients in soil according to claim 1, wherein the ingredient detection test paper comprises a test paper body and a comparison card, wherein a color development area is arranged on the test paper body, a composite color development liquid is coated on the color development area, and the composite color development liquid comprises a biological enzyme and a color development reagent.

3. The method for analyzing soil active ingredients according to claim 2, wherein the control card is provided with a phosphate colorimetric region and a potassium colorimetric region.

Technical Field

The invention relates to the technical field of biological detection, in particular to a soil active ingredient analysis method.

Background

With the increasing world population, the needs of food and other products are integral with the daily situation, and as crops such as food and the like need to absorb various nutrients from soil to grow and develop, the nutrient condition in the soil needs to be known, so that corresponding chemical fertilizers are produced and reasonably applied, the soil can be better utilized and modified to meet the high-yield needs of the crops, and along with the rapid development of social economy, the pollution problem occurs, wherein the soil pollution problem is more serious, and both heavy metal pollution and organic pollutant pollution can affect animals and plants in the soil and are transmitted along a food chain, so that the survival and development of human beings are threatened. At present, various nutrient analyses in soil need complicated large-scale analytical instruments such as gas chromatography, liquid chromatography, mass spectrometry, hydrogen spectrum and the like, and the instruments are expensive, long in analysis period and inconvenient, lack effective monitoring on a soil ecosystem and cannot carry out real-time monitoring and early warning on a soil environment.

The nitrogen and the phosphorus in the soil are main components of crops, and the content of the nitrogen is high or low, so that the growth of the crops is seriously influenced. Phosphorus is the main component forming the crop cell nucleus, such as nucleic acid, phospholipid and nucleoprotein all contain phosphorus, which not only participates in the composition of protoplasm and organelle, but also has close relation with each link of metabolism. Potassium is generally in an ionic state or soluble salt in crops, is the main cation in protoplasm and cell sap, and is mostly concentrated in meristems in which crops grow actively. Potassium catalyzes many enzyme reactions in crops, enhances photosynthesis, is closely related to synthesis and operation of protein and carbohydrate, and enhances mechanical tissues of crops to resist lodging and diseases and pests. Therefore, in order to ensure that crops grow well and soil is the key point, the method is particularly important for detecting the content of nitrogen ions, phosphate radicals and potassium ions in the soil in advance, the detection method for the phosphate radicals and the potassium ions in the soil in the prior art is long in time and high in cost, and when the content of the phosphate radicals and the potassium ions in the soil is seriously over standard, the phosphate radicals and the potassium ions cannot be quickly detected by using a common chemical reagent method.

Disclosure of Invention

In order to overcome the defects, the invention provides a method for analyzing effective components in soil, which comprises the step of using a component detection test paper capable of effectively detecting the components of the soil, and the component detection test paper can quickly and effectively detect the phosphate radical and potassium ion components in the soil. The specific technical scheme is as follows:

a soil active ingredient analysis method is characterized by comprising the following steps: s1, taking the land to be detected with the unit of 10 mu, randomly and dispersedly selecting 10 positions, and respectively digging 15cm2 soil as a sample for bearing and assembling;

s2, adding a certain amount of ultrapure water into the soil sample dug in the step S1, stirring and uniformly mixing, and standing for 10 min.

S3, taking the upper liquid of the soil sample after standing in the step S2, dripping the upper liquid onto component detection test paper, observing color change, and judging the nitrogen content, phosphate radical content and potassium ion content in the soil according to the color change.

Further, the component detection test paper comprises a test paper body and a comparison card, wherein a color development area is arranged on the test paper body, a composite color development liquid is coated on the color development area, and the composite color development liquid comprises a biological enzyme and a color development reagent.

Furthermore, a phosphate radical colorimetric region and a potassium ion colorimetric region are arranged on the contrast card.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Detailed Description

The following detailed description of embodiments of the invention is intended to be illustrative, and is intended to be illustrative only.

The method for analyzing the effective components in the soil comprises the following steps: s1, taking the land to be detected with the unit of 10 mu, randomly and dispersedly selecting 10 positions, and respectively digging 15cm2 soil as a sample for bearing and assembling;

s2, adding a certain amount of ultrapure water into the soil sample dug in the step S1, stirring and uniformly mixing, and standing for 10 min.

S3, taking the upper liquid of the soil sample after standing in the step S2, dripping the upper liquid onto component detection test paper, observing color change, and judging the nitrogen content, phosphate radical content and potassium ion content in the soil according to the color change.

Further, the component detection test paper comprises a test paper body and a comparison card, wherein a color development area is arranged on the test paper body, a composite color development liquid is coated on the color development area, and the composite color development liquid comprises a biological enzyme and a color development reagent; the test paper body is also provided with a buffer area, and a buffer is coated in the buffer area. The buffer zone acts as a pH buffer in order to prevent too high an acid or base content in the solution from affecting the test results.

Furthermore, a phosphate radical colorimetric region and a potassium ion colorimetric region are arranged on the contrast card. Wherein the phosphate radical colorimetric area and the potassium ion colorimetric area are internally provided with colorimetric blocks at least provided with 4 molar concentrations.

The method for analyzing the effective components in the soil can detect the content of nitrogen, phosphate radical and potassium ions in the soil in real time and quickly, the molar concentration of the phosphate radical and the potassium ions can be visually judged by comparing the color change of the color development area on the component detection test paper with the color comparison block on the comparison card, and the darker the color development area is, the higher the nitrogen content in the soil is, the higher the detection accuracy of the whole method is, the operation is convenient and the applicability is wide.

While specific embodiments of the invention have been described in detail with reference to exemplary embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this invention. In particular, reasonable variations and modifications are possible within the scope of the foregoing disclosure and the appended claims without departing from the spirit of the invention.