Development and Application of Rapid Soil Testing Technology in China China's agricultural development has a history of more than 5,000 years. Farming and harvesting on the land has become the only way for farmers to obtain food. Before long ago, farmers would not consider the problems of soil nutrients and fertility. With the advancement of science and technology, we already know that factors such as soil nutrients, fertility, composition, and trace elements will have a great influence on the yield and quality of crops. The rapid soil testing technology represented by the soil nutrient fastness tester came into being. The rapid development of soil nutrient fastness measurement technology in our country is not long, but it has begun to take shape. Today I will talk about the development and application of rapid soil testing technology in China. Since people recognized that soil is a nutrient repository for crops and can use soil rapid measurements to understand the effectiveness of soil nutrient supply to crops, the study of soil rapid measurements and new methods has not stopped. However, the proposed new method must go through a large number of relevant studies and field verifications, and establish soil nutrient abundance index system and fertilization index system. This process needs to do a lot of research work, but also requires a lot of funding. Therefore, the main methods for rapid soil testing were established in the United States, the former Soviet Union, the United Kingdom, Germany, and other countries, and a relatively complete system of rapid soil testing and recommended fertilization has been established. Other countries are applying these methods to conduct adaptive condition studies and calibration studies, and to establish an index system suitable for the country. The rapid soil testing technology in China can be traced back to the 1960s. At that time, the rapid determination technology of soil nutrients based on visual colorimetry had been greatly developed. The determination of water content was mainly alcohol combustion; nitrate nitrogen was used. Nitrate test powder or diphenylamine colorimetric method; Ammonium nitrogen by Nessler's reagent colorimetric method; Available Phosphorus molybdenum blue (stannous chloride reduction) colorimetric method; Available potassium is sodium cobalt nitrite or sodium tetraphenylborate. Turbidity method; soil pH value by colorimetry. Since the 1980s, with the development of electro-optical colorimetry technology, a rapid field soil nutrient measurement technique using photoelectric colorimetry has emerged. The method of testing is basically the same as that of visual colorimetry, but it has been adopted. Electro-optical colorimetry has greatly improved the accuracy of analysis, and has developed rapid-measuring devices (generally, photoelectric colorimeters). The input of soil parameters and fertilization parameters into speedometers or computer software can be easily obtained. Fertilizer amount data. These speed measuring instruments aim at improving the field test capability of the equipment and accelerating the test speed, and their accuracy can basically meet the quantitative requirements. With the continuous deepening of research and promotion of soil testing and fertilizer application technology, portable, rapid soil testing and technology have received more and more attention from people and become one of the focuses of research and development. In recent years, many speed measurement methods and speed measurement instruments have come out one after another. For example, the Soil Fertility Institute of the Chinese Academy of Agricultural Sciences and the Nanjing Institute of Soil Science and Technology of the Chinese Academy of Sciences all researched and developed the soil quickness tester and the TPY-6 soil nutrient speed tester manufactured by Zhejiang Top Instrument. These instruments and equipment are aimed at rapid testing. Their application complements laboratory analysis and promotes the application of efficient fertilization technology. Semiconductor Parts,Semiconductor Machine Parts,Cnc Semiconductor Processing Parts,Semiconductor Parts Machining Equipment Shenzhen Kairui Precision Technology Co., Ltd. , https://www.krjgcnc.com