With the development of modern agriculture in China, farmers' demand for scientific instruments and technology is increasing. The state has also strengthened financial support for agricultural science and technology institutes, agricultural bureaus and plant protection stations at all levels to equip more sophisticated equipment. To make China's agriculture steadily moving towards high yields. If the land wants to be productive, it is necessary to plant crops that are suitable for itself, and at the same time scientifically fertilize. To be scientifically fertilized, the prerequisite must be to know how much nutrients the soil can supply and how much nutrients the crop needs to absorb. According to the difference between the two and the utilization rate of fertilizer, the amount of nutrients to be applied (mainly nitrogen fertilizer, phosphate fertilizer and potassium fertilizer) is calculated. In general, by referring to some plant nutrition textbooks, books on fertilizer use, or using a web search, you can get the NPK parameters for the relevant crops, such as typing “Nitrogen, Phosphorus, Potassium Soy†in the Baidu search bar. Such a phrase would have something like "the effect of nitrogen, phosphorus and potassium on the growth and yield of spring soybean plants in new red soil" and "the nutrient regularity of nitrogen, phosphorus and potassium in soybeans". By comparing these data, the results of the test can be analyzed and determined. Before the rapid tester was born, the conventional routine test method was widely used. Although the conventional test method has high practicability, it also has its own shortcomings that are difficult to overcome. First, it often requires a certain amount of capital investment. According to statistics, even if it is not included in the housing investment, reagents. Glass instruments. The investment in analytical instruments is also at least 30,000 yuan, which is relatively difficult for agricultural technology promotion departments and individual plantation owners at the township level. Second: the test work is limited by the site, and the test inside the laboratory is obviously unable to meet the needs of the agricultural field liquidity survey. Third: the high cost of the result is too slow, it takes 3-4 days to routinely analyze a soil sample. Therefore, although the conventional analysis method that has been used for a long time is practical, it is increasingly not applicable, and the rapid measurement method has come into being. The quick test method uses the speedometer function equivalent to a microcomputer, which can automatically analyze, store and print. And the other accessories, utensils and medicines in the instrument box constitute a complete equipment. It is portable, lightweight and compact, and supports stand-alone, streamlined, standardized tests. The complete set of equipment is housed in a well-designed instrument case, making it portable, light and compact, and high in technology.
How to correctly choose a high-quality speedometer may be very easy for professionals, but for some beginner technicians and farmers, it may still be difficult. Here, we will give you some suggestions for your reference.
First: The best for you is the best. It is not wise to pursue the price level, and it is wise to choose the configuration according to your actual needs.
The soil nutrient speed meter can be divided into two types according to the conditions of use provided by the user.
The first one is suitable for units without laboratories, such as the rural agricultural technology station, the crop hospital, the agricultural science and technology demonstration village, and the mobile agrochemical service of the fertilizer plant. Such units of use require that the test instrument and its ancillary items can be carried to the site lightly, and the soil nutrient analysis work is completed under the condition of leaving the laboratory. The instrument and its accessories are also required to be easy to maintain and not easily damaged. Generally, portability is optional. , a good matching photoelectric photoelectric colorometer.
The second type is suitable for laboratories, such as county soil and fertilizer stations, agricultural company testing centers. This type of unit has laboratory support and does not require speed measurement instruments to be compatible and portable. Desktop or portable photoelectric colorimetric type quick testers are available.
When choosing a portable speed tester, it is necessary not only to see if it has a portable package, but also to use a simple balance, a bottle wash, and a mirror paper. All the utensils, materials and utensils used in the test are available. All items must be miniaturized, light-weighted, and positioned; the amount of test drugs should be minimized.
Second: clarify which requirements of the “test projectâ€
Different soil nutrient speedometers are closely related to the number of test items and the price.
In summary, it probably includes the following items: water, salt, pH, total nitrogen, organic matter, ammonium nitrogen, alkali nitrogen, nitrate nitrogen, available phosphorus, available potassium, calcium magnesium, sulfur, boron, manganese, iron, copper. Etc.; nitrogen, phosphorus, potassium, organic matter content test in various fertilizers; nitrogen, phosphorus and potassium in plants.
Seeking truth from facts and making choices can save a lot of money and reduce unnecessary expenses while smoothly carrying out various tasks.
Third: after sales service is crucial
Despite the support of high technology, the speedometer has greatly reduced the operational difficulty compared to the traditional method. But there is no denying that soil testing and fertilization is still a complicated technical process. The guidance of professionals is of great importance to users, especially the majority of farmers and junior technicians. Therefore, from the perspective of customer service, a good company is responsible for providing the best quality service in this regard.
How to correctly choose a high-quality speedometer may be very easy for professionals, but for some beginner technicians and farmers, it may still be difficult. Here, we will give you some suggestions for your reference.
First: The best for you is the best. It is not wise to pursue the price level, and it is wise to choose the configuration according to your actual needs.
The soil nutrient speed meter can be divided into two types according to the conditions of use provided by the user.
The first one is suitable for units without laboratories, such as the rural agricultural technology station, the crop hospital, the agricultural science and technology demonstration village, and the mobile agrochemical service of the fertilizer plant. Such units of use require that the test instrument and its ancillary items can be carried to the site lightly, and the soil nutrient analysis work is completed under the condition of leaving the laboratory. The instrument and its accessories are also required to be easy to maintain and not easily damaged. Generally, portability is optional. , a good matching photoelectric photoelectric colorometer.
The second type is suitable for laboratories, such as county soil and fertilizer stations, agricultural company testing centers. This type of unit has laboratory support and does not require speed measurement instruments to be compatible and portable. Desktop or portable photoelectric colorimetric type quick testers are available.
When choosing a portable speed tester, it is necessary not only to see if it has a portable package, but also to use a simple balance, a bottle wash, and a mirror paper. All the utensils, materials and utensils used in the test are available. All items must be miniaturized, light-weighted, and positioned; the amount of test drugs should be minimized.
Second: clarify which requirements of the “test projectâ€
Different soil nutrient speedometers are closely related to the number of test items and the price.
In summary, it probably includes the following items: water, salt, pH, total nitrogen, organic matter, ammonium nitrogen, alkali nitrogen, nitrate nitrogen, available phosphorus, available potassium, calcium magnesium, sulfur, boron, manganese, iron, copper. Etc.; nitrogen, phosphorus, potassium, organic matter content test in various fertilizers; nitrogen, phosphorus and potassium in plants.
Seeking truth from facts and making choices can save a lot of money and reduce unnecessary expenses while smoothly carrying out various tasks.
Third: after sales service is crucial
Despite the support of high technology, the speedometer has greatly reduced the operational difficulty compared to the traditional method. But there is no denying that soil testing and fertilization is still a complicated technical process. The guidance of professionals is of great importance to users, especially the majority of farmers and junior technicians. Therefore, from the perspective of customer service, a good company is responsible for providing the best quality service in this regard.
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