Comparison of soil nutrient speed meter
Soil nutrients refer to the essential nutrients that the soil provides to crops, including 13 elements such as nitrogen (N), phosphorus (P), and potassium (K). How much soil nutrient content can be measured by the soil nutrient speed meter. Then, based on the indicators of soil nutrient abundance, the amount of nutrients in this land can be judged. Because we need to understand the soil nutrient content of this piece of land before we conduct research on a piece of land or before planting and fertilizing. Only in this way can we make better use of the soil's own nutrients, and at the same time promptly replenish the insufficient elements.
How do you determine the indicators of soil nutrient deficiency? The indicator of soil nutrient abundance is an expression of the correlation between the measured values ​​of soil nutrients and crop yield. To determine the abundance of certain nutrient content in soil, it is necessary to conduct multiple experiments on the soil in different fertility levels in the all-fertilizer zone (for which the nutrient is applied) and for the lack of nutrients (without applying such nutrients). After determining the available nutrient content of each soil sample, and obtaining the paired yields in the entire fertilizer area and the lack of nutrients, the relative nutrient quantity was determined by the relative amount of production. According to the standards proposed by China, the soil content below 50% relative output is “extremely scarceâ€, 50%-70% is “lackâ€, 70%-90% is “mediumâ€, and 90% is “rich "The indicator of soil nutrient abundance. However, when it reaches abundance, we do not need to apply this nutrient fertilizer. Therefore, the measurement of soil nutrient content plays a crucial role.
There are many instruments on the market that can measure soil nutrient content: soil-testing and fertilizer-applying instruments, near-infrared soil nutrient analyzers, soil nutrient fastness testers, and soil testers. In addition to the near-infrared soil nutrient tester, the other three are the same product, just different names. Of course, this product has different models, corresponding to different functions, different models, the price will be a small difference. Specific price of each soil nutrient tester, you can consult Zhejiang Top company's 24-hour service hotline. Then, in the following, we will provide a detailed description of one of the products, the near-infrared soil nutrient velocity measuring instrument.
The near-infrared soil nutrient fastness meter was applied to spectral technology, combined with data mining and fusion techniques to measure the nutrients in the soil. At the same time, due to the use of near-infrared technology, it is distinguished from the general soil nutrient fastness tester. The most remarkable feature of the near-infrared soil nutrient fastness tester is that it does not damage the sample, does not require chemical reagents, and the detection time is less than 1 minute.
The following table shows the difference between the near-infrared method and the common method for measuring soil nutrient content:
Contrast
Laboratory chemical analysis
Traditional rapid measurement method
Spectral measurement method
Operation method
Conventional methods are time consuming and laborious and require high quality of operators
Need to be handled beforehand, operation is troublesome, it is necessary to drop the reagent step by step, there must be no missing items, and the staff must be careful
The operation is particularly simple, it does not destroy the sample, does not require chemical reagents, the soil sample can be directly put into the sample chamber to measure the nutrients in the soil
measure time
One day or several days
Including preprocessing time 40 minutes - 1 hour
1 minute
cost
High cost, 30-120 yuan per sample and parameter
Higher cost, between 1.2 yuan and 2 yuan per sample
No cost other than battery, no reagent required
Extensibility
Only nutrients such as NPK can be measured. If other indicators are to be tested, there will be more supporting instruments and poor scalability.
Can only measure NPK, PH, EC nutrients, no expansion
Can change model or add model to test more parameters, super extensibility
Near-infrared soil nutrient tester is a new product independently developed by Zhejiang Top Instrument Co., Ltd. using the latest technology. It is the first in the country. It has many features in the past, but also added a lot of new features. At the same time, due to technological innovation, the price of near-infrared soil nutrient testers is much higher than that of other soil nutrient testers.
Figure near-infrared soil nutrient speed measuring instrument
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