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Determine the test soil and plant sample analysis test items and methods of the soil tester. The soil pH value, as well as the content of soil organic matter, alkali-hydrolyzable nitrogen, available phosphorus, available potassium, and slow-acting potassium are all measured items. In order to ensure the completeness of the test data of the soil tester, some test items will take into consideration the type of soil when selecting the test points and ensure that each soil type has at least one test sample.
Based on the experimental farmland, soil fertility investigation and soil testing, the fertilizer field was used as a tester for soil testing. Based on the law of fertilizer requirements of the crops, soil fertility, and fertilizer effects, on the basis of reasonable application of organic fertilizer, the nitrogen, Phosphorus, potassium, and trace elements and other fertilizers applied varieties, quantity, fertilization period and application methods. Fertilizer formulation includes field-based formula design and county partition formulation.
In order to verify the accuracy of the soil tester and fertilizer formulation, and constantly improve the fertilizer formula, improve the technical parameters of soil testing and formula fertilization, improve the accuracy and scientificity of formula fertilization, in accordance with the requirements of soil testing and fertilizer application requirements, carry out fertilizer effect correction on the main crops. test. The experiment was based on blank, conventional fertilization and formula fertilization.
Through the project's implementation analysis: Soil and Fertilizer professional and technical team is growing, and the quality of the professional instrument and technology professional and technical personnel has been greatly improved. Through professional and technical training and practice of soil testing and formula fertilization over the past few years, the professional quality of the staff has been greatly improved. Many staff members have become experts in soil and fertility that can perform both field sampling surveys and soil fertility field test methods as well as laboratory analysis. Technical backbone.
The Important Role of Soil Tester in the Research of Formula Fertilization Technology
Taoyuan County is a county in the northwest of Hunan Province in China. Its main crop production is cotton, grain, and tea. It is an important grain and oil commodity base in the country. The county was once the first batch of soil testing and formula fertilization in China. The soil measuring instrument and fertilization technology project played a certain role in promoting the development of the county's agriculture. It also increased the collection of farmers and also improved the production environment of agriculture. Through the implementation of the project in the county, it has been proved that the soil testing and fertilizer application technology and the application of the soil testing instrument have an important role in promoting long-term agricultural production.