What is the difference between a soil moisture speed meter and a soil moisture recorder, and is the

Advantages: The operation of the heating moisture analyzer is simple, no other auxiliary reagents are required, only need to participate in the sample, set or call up the temperature control program to check; Because of the rapid heating and energy radiation technology, the moisture in the sample can reach the end of equilibrium in a few minutes to ten minutes, and the power and accuracy are much higher than the traditional drying method of drying the sample in the oven and then weighing it with a balance. Cons:

Some manufacturers have widely published various exaggerated propaganda on the Internet, which makes people feel that this kind of moisture analyzer seems to be able to check anything, and the accuracy is also very high, which is not right. Regardless of which thermal moisture analyzer is the same, but with many constraints, the thermal moisture analyzer cannot completely dry the moisture in the sample; Especially in the heating process will be soft problems.

Soil moisture rapid measurement, generally with display, without recording, soil moisture recorder with display and without display, but both have recording data storage function.

Generally, soil moisture recorders are equipped with computer analysis software because of their functions, but soil moisture is not.

The difference between the soil moisture tachymeter and the soil moisture recorder can also be asked about the soil moisture range that the TZS-1K soil moisture tachymeter can measure: 0-100%, with an absolute error of 2%. The soil moisture speed tester and the probe have consistency, and the probe sockets of different parameters can be interchangeable without affecting the accuracy.

TZS-2Y multi-parameter soil moisture recorder displays the trend of the process curve of each parameter, and the maximum, minimum and average values are displayed to view, zoom in and zoom out, and the functions are clear and clear.

<> USA AT Portable Solid Moisture Analyzer - Mesoscopic.

Soil moisture velocity meter and soil moisture recorder.

Literally, you can distinguish the main difference between the two, the soil moisture speed tester emphasizes the fast, convenient and efficient detection equipment, while the latter emphasizes the recording function, the specific distinction between the two is detailed, log in and query.

The automatic soil moisture tester TZS-W has two functions of measuring soil moisture and soil temperature, and the software has the function of storage and printing. The usage is very simple, just look at the software instructions. You can ask Handan Congtai Yimeng Electronics ****, their instrument our unit bought a unit is 5500 yuan. Hope.

Soil nutrient speed tester mainly refers to the portable instrument that can be brought to the field and quickly test soil nutrients, it is a good tool to publicize soil testing formula fertilization to farmers, and improve farmers' awareness of soil testing and fertilization, but due to the constraints of conditions, it is generally not able to guide farmers to fertilize very scientifically and accurately. First, the soil nutrient tachymeter is operated in the field, and the external environmental conditions are difficult to control, and the accuracy and precision of the soil nutrient test results are difficult to guarantee. Second, the soil nutrient test result is a relative value, and there must be a matching fertilizer field test to establish a fertilization recommendation index system, and most of the soil nutrient speed testers have not yet established a perfect recommended fertilization index.

Third, when there are only one or two soil samples, the soil nutrient velocity meter can reflect the "fast"; On the contrary, when the number of samples reaches a certain batch, the "quick test" becomes the "slow test" compared to the routine test in the laboratory. Therefore, when carrying out soil testing and formula fertilization in a large area, conventional soil nutrient testing is the best and most effective means to understand soil nutrients.

Soil nutrient tachymeter is of course useful, we all know that the main way for crops to obtain nutrients is the soil, so the nutrient content in the soil directly affects the growth of crops, and the change of soil nutrients has an important impact on the quality and yield of crops, and the use of this instrument to analyze and calculate the suitable environment for the growth of crops, and through the modern fertilization means to supplement the nutrients to adapt, is one of the important ways in modern agricultural planting technology.

Instrument features: "Chassis and pharmaceutical integrated aluminum alloy chassis" design, easy to carry, sturdy and durable, supporting finished chemicals.

Microcomputer control, digital circuit, programmed design, liquid crystal display, AC and DC dual-use, can be used for field flow testing, reducing operator error and labor intensity.

Resolution: Touch buttons, built-in thermal printer, printable test results.

It can detect the content of various medium and trace elements such as calcium, magnesium, sulfur, iron, manganese, boron, zinc, copper, chlorine, silicon, lead, chromium, cadmium, cadmium, mercury, arsenic and other heavy metals in soil, chemical fertilizer, organic fertilizer (including foliar fertilizer, water-soluble fertilizer, spray fertilizer, etc.), plants, and plants.

It adopts high-brightness LED light source and double-dial filter processing technology to ensure the stable wavelength of the light source, and silicon semiconductor is used as a signal receiving system with a service life of up to 100,000 hours. The light source is stable, reproducible and accurate.

The colorimetric groove part adopts a single-channel design, without mechanical displacement and wear, and the optical path test positioning is accurate to ensure the accuracy of the measurement results.

Supporting the data of the fertilization system of experts, the target yield of more than 100 kinds of national agriculture, fruit trees and cash crops can be scientifically calculated and recommended fertilization amount.

The self-invented analysis method is used to ensure that the test results meet the requirements of the national standard.

Soil nutrient tachymeter detection items:

1. Soil nutrients: ammonium nitrogen, nitrate nitrogen, organic matter, total nitrogen, pH value, alkaline hydrolyzable nitrogen, etc.;

Medium and trace elements: calcium, magnesium, sulfur, iron, manganese, boron, zinc, copper, chlorine, silicon, etc.

2. Fertilizer nutrients:

nitrogen, phosphorus, potassium in elemental fertilizers; ammonium nitrogen, nitrate nitrogen, phosphorus, potassium and biuret in compound (mixed) Hefei and urea; Total nitrogen, total phosphorus, total potassium, organic matter, various humic acids, trace elements (calcium, magnesium, sulfur, iron, manganese, boron, zinc, copper, chlorine, silicon) in organic fertilizer, etc.

3. Plant nutrients:

nitrogen, phosphorus, potassium in plants; Calcium, magnesium, sulfur, iron, manganese, boron, zinc, copper, chlorine, silicon, etc.

4. Tobacco nutrients: total nitrogen, total phosphorus, total potassium, reducing sugar, water-soluble total sugar, boron, manganese, iron, copper, calcium, magnesium, etc. 20 items.

5. Heavy metals in soil and fertilizer: nearly ten kinds of heavy metals such as lead, chromium, cadmium, arsenic, mercury, etc.

6. Food (fruits, vegetables, etc.): heavy metals (lead, chromium, cadmium, arsenic, mercury) and other items.

7. Water quality: ammonium nitrogen, phosphorus, potassium, hardness, pH, iron, copper, manganese, zinc, boron, chlorine, sulfur, silicon, etc.

FDR (FrequencyDomain Reflectometry) is a measure of the apparent permittivity of soil according to the propagation frequency of electromagnetic waves in the medium by using the principle of electromagnetic pulse (so as to obtain the soil volumetric water content (V). The measurement principle, system installation, measurement method and application of FDR system in continuous dynamic monitoring of soil moisture are introduced, and the actual measurement results are corrected, which can be used as a reference for FDR correction. The application practice in the Huangfuchuan River Basin in the semi-arid area shows that FDR has the advantages of simplicity, safety, fast and accurate, fixed-point continuous, automation, wide range and less calibration, and is a recommended soil moisture measurement instrument.

Time Domain Reflector (TDR) is a common principle for rapid detection of soil moisture, which is based on the principle that a waveform is reflected on a mismatched transmission line. The waveform at any point on the transmission line is a superposition of the original waveform and the reflected waveform. The TDR principle has a response time of about 10-20 seconds, making it suitable for mobile measurement and fixed-point monitoring.

The measurement results are not affected by salinity, and the disadvantage of TDR is that the circuit is more complex and the equipment is more expensive.

FDR has almost all the advantages of TDR compared to TDR testing principle, and the probe shape is very flexible. The more exaggerated ones can even be measured in the movement of a tractor made into a plough shape. FDR requires less correction work than TDR.

For many years, it has been difficult to break through the accuracy of the FDR principle of soil moisture meter, which has become a stagnation in the development of FDR soil moisture meter. After years of research, the German company STEPS has finally broken through this difficulty. A soil moisture meter MST3000 based on FDR principle was developed, and the accuracy reached 3%.

The advent of this latest product has been well received by the majority of users in the industry. Its operation is simple, convenient and fast, and more importantly, it has high precision and good stability.

TDR's good accuracy is high, and it can be reached by Jinzhou Sunshine Technology.

Soil nutrient velocity tester is a soil quantitative analysis instrument developed according to the national standard method of soil testing and rapid detection method, which can be widely used in detection

Soil nutrients: ammonium nitrogen, nitrate nitrogen, available phosphorus, available potassium, organic matter, total nitrogen, pH value, moisture, alkaline hydrolyzable nitrogen, etc.; Medium and trace elements.

Fertilizer nutrients: nitrogen, phosphorus, potassium in elemental fertilizers; ammonium nitrogen, nitrate nitrogen, phosphorus, potassium and biuret in compound (mixed) Hefei and urea; In organic fertilizer, available nitrogen, available phosphorus, available potassium, total nitrogen, total phosphorus, total potassium, organic matter, various humic acids, trace elements, etc.

Nearly ten kinds of heavy metals in soil and fertilizer. It has a good knowledge of the fertilization of crops, improves the efficiency of fertilization, and lowers the cost of agricultural materials.

Zhengzhou Peng inspection soil fertilizer instrument is very good, you can measure the sample on the spot, you can take a look.

It is mainly used in the following fields: agricultural testing centers at all levels, agricultural research institutions, fertilizer production, agricultural material management, agricultural technology services, planting bases and other fields.

1. It can detect the content of available nitrogen, available phosphorus, available potassium, organic matter, soil pH and soil salinity, and total nitrogen, total phosphorus and total potassium in plants.

It has the function of Beijing time display, which can automatically record and save the time of the test sample.

2. Crop varieties, crop yields, and fertilizer varieties can be set according to local conditions, and the amount of fertilizer can be automatically calculated.

3. The sample results of the test are automatically transferred to the computer to realize analysis, summary and storage, and the nutrients required for the growth and development of 80 kinds of crops are memorized; It can be stored by the computer for data storage, remote sending, printing, or it can be separated from the computer to carry out the soil testing formula on the host computer and print it out through a micro printer.

4. Contains 73 kinds of crop fertilizer software, which can set crop varieties, crop yields, and fertilizer varieties according to local conditions, and automatically calculate the amount of fertilizer.

Minnong Instruments:

1.What is the significance of soil nutrient determination?

A: Soil nutrient determination value, the soil nutrient content determined by soil chemical analysis methods. The size of the measured value of soil nutrients can reflect the amount of soil nutrient content and labor cost, which is the basis for measuring the fertilization effect and determining whether fertilization is needed.

In addition, nutrient measurements are often used to compare soil nutrient status in different soils or in different fields. Therefore, soil nutrient determination value is not only widely used in field fertilization experiments, plant nutrition diagnosis and fertilization diagnosis, but also has important significance for field production. In soil testing formula fertilization, the soil measurement value and the results of field experiments determine what fertilizer to use?

How much? It is the main basis for formulating fertilizer formulations and fertilization measures. With the continuous improvement of soil agrochemical testing methods, soil nutrient determination has been widely used in agricultural production.

2.What is Soil Nutrient Rapid Measurement?

A: At present, there is no unified statement on what is soil nutrient rapid measurement and what is its definition. Literally, speed test should be a kind of rapid determination, it is a method, but also a technology and equipment, should be relative to the laboratory routine analysis, but it is not only faster than the test, more importantly than the portability, than the cost of the test, fast is also for low cost.

Portability is meant to be able to serve at the grassroots level away from the lab. In terms of speed alone, the test speed of automated analysis technology on the basis of conventional analysis is the fastest, but the total test cycle and comprehensive cost are not the lowest, and it cannot be said that it is applied at the grassroots level and in the field out of the laboratory, so it is generally not considered that automatic analysis technology belongs to the speed test, in the field of analysis technology, it is generally believed that the test cycle is not more than 2 hours, or the test speed is more than twice as fast as the conventional analysis to be called a speed test. In the field of soil nutrient analysis, this is not enough, there is also a requirement for mobile services and rural services.

Based on this understanding, we define a soil nutrient tachymeter as:

In order to reduce the cost of comprehensive soil nutrient testing and serve the grassroots under rural conditions, the test speed is faster, the test cycle is shorter, the test equipment is simpler, and the soil nutrient speed tester technology and equipment can be carried out from the laboratory to work in the countryside, and the test accuracy can meet the requirements of soil testing and fertilization.

In the past, the traditional rapid measurement method was relatively backward and could not accurately measure the moisture information in the soil, but fortunately, the emergence of the soil moisture rapid measurement instrument can analyze soil moisture, rainfall, irrigation, etc., and provide the best environment for crop planting. What's more, the soil moisture speed meter is easy to carry and can monitor soil moisture anytime and anywhere. It mainly has the following advantages:

1. Increase peasant incomes.

With the help of soil moisture speed tester, farmers can carry out scientific and reasonable irrigation of farmland, achieve the correct use of water resources, improve the yield and quality of crops, so as to improve economic benefits and increase farmers' income.

Soil moisture speed tester.

2. Save water resources.

Because the soil moisture tester can accurately measure the soil moisture situation, it can optimize the use of water, fertilizer and energy, and achieve the purpose of saving water and fertilizer. Concentrate water and fertilizer in the roots to avoid leaching losses.

3. Fast and accurate measurement.

We use the soil moisture tester to measure the entire profile and multiple layers of the soil, which is simple and convenient, and only takes tens of seconds to understand the soil moisture situation, which greatly saves the time of measurement, and the measured data also provides a basis for accurate irrigation.