ZHEJIANG FULE MINING MACHINERY CO., LTD , https://www.flmachine.com
How to analyze and measure soil available nutrients and increase the practical application value of soil available nutrient result data is indeed a subject worthy of in-depth study. Soil analyzer is one of the main instruments currently measured. At present, there has been some progress in the theoretical exploration of soil available nutrient analysis, improvement of analytical methods, and improvement of the accuracy of indoor analysis. However, soil as a natural body has its specific complexity. Therefore, analytical theory, especially analysis and determination technology, is far from adapting to the development of soil science and agricultural science and technology and agricultural production.
Because soil available nutrients are affected by soil hydrothermal conditions and physicochemical properties, crops, fertilization and other factors in the soil, the changes are extremely rapid. There are problems in soil sampling, analysis and determination, and application of results data to varying degrees.
The analysis of soil samples and soil samples is an equally important aspect of ensuring the accuracy of analysis results. In a sense, the importance of sampling is greater than the significance of analysis. Because there is still a certain standard for analysis and determination, soil sampling work still lacks specific scientific regulations. Sampling people generally choose the sampling method based on their own subjective knowledge, determine the sampling time, location and sampling number, in the absence of a strict objective test standards, scalability is very strong, is bound to cause errors.
If two people enter a piece of cultivated land at the same time to collect soil samples and measure the soil moisture content, the difference between the results is as much as seven times the allowable error of the indoor analysis accuracy. This tends to emphasize research on analytical methods while ignoring the seriousness of sampling errors. Soil analysts are responsible for only responsible for the sample in the sample bottle, in order to obtain the analysis accuracy and the soil sample representative. The representative of the actual soil sample is not strong, that is, the method of analysis and determination. Well, the accuracy of the analysis results is also difficult to correctly reflect the actual nutrient status of the cultivated soil, and even make a wrong judgment. The nutrients in the cultivating layer of farmland soil are very uneven, and the variation of the unevenness is very obvious.
Soil available nutrients, hydrolyzable nitrogen (alkali dissolved nitrogen), available phosphorus, and available potassium are important components of soil nutrients. It is one of the main indicators for understanding soil fertility. In the agricultural cultivated soil, available nutrients are the most realistic manifestations of soil maturation, recent nutrient supply status and fertility levels. They all have guiding roles in farming, fertilization, soil improvement, and crop yield. The soil analyzer plays an important role in this determination and is a great help in the development of modern agriculture.