The superiority of soil nutrient tester in fertilization
In recent years, the domestic demand for soil testing and formula fertilization has been increasing. Soil testing and formula fertilization has also achieved very good results in the practice of various local departments and has been continuously promoted. It is in such a large environment that many companies have developed and produced soil nutrient series analysis equipment and recommended fertilization software suitable for use in most parts of China. The analysis items include soil pH, organic matter, ammonium nitrogen, available phosphorus, potassium, calcium, magnesium, sulfur, boron, iron, manganese, zinc, and copper. The single-person operation can analyze 30-60 soils per day, and can evaluate soil nutrients and recommend fertilization according to the results of soil sample measurements. It can be widely used in agricultural technology promotion departments, agrochemical service departments, special fertilizer manufacturers, etc. . In addition, soil nutrient fastness tester is a scientific instrument often used in the process of soil testing and formula fertilization.
The whole set of equipment includes soil sample air drying equipment, soil sample crusher, soil sample sampler, sample plate, sample vehicle, liquid diluent, soil sample stirrer, sample plate washer, soil nutrient tester, pump-suction spectrophotometer Photometer, atomic absorption spectrophotometer, soil moisture detector, stirring acidity meter, pure water preparation device and accessories, etc. This equipment can be used as a kit or it can be used alone for routine analysis in a general soil testing laboratory to increase the speed of analysis. 60-100 square meters of the laboratory can meet the requirements of a full set of equipment installation. This method is significantly superior to the conventional analysis of soil nutrients. In the analysis of soil samples, a series of advanced operating techniques are adopted: The soil air-drying disc avoids the shortcomings of conventional soil samples that are air-dried and easily contaminated; special soil sample crushers are used. Hammer type structure will not destroy the micro-aggregation performance of soil; the use of batch add liquid diluent can complete batch addition, at the same time, it can add liquid and dilution at one time, which greatly saves liquid and dilution during soil analysis. , Color development, constant volume and other cumbersome procedures; sample plate flusher can rinse 11 containers at a time, and can complete flushing of tap water and deionized water at one time. In the analysis process, the soil mixer replaces the traditional shaker to avoid the disadvantages of easy spillage of the sample and fragility of the container. In the colorimetric analysis, the pumping flow is used to inject sample, so that the efficiency of colorimetric analysis is greatly improved. In the determination of soil acidity, an automatic stirring technique is adopted to allow the stirring and measurement to be performed at the same time, which greatly simplifies the determination procedure.
In summary, the superiority of this method compared with conventional methods commonly used in China can be summarized as follows: high speed, multiple projects, low costs, and each project has clear indicators of fertilization. A wide range of automatic fertilization recommendations.
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