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The first is the misunderstanding of understanding. Experts believe that soil testing and formula fertilization is different from the general "project" or "engineering". It is a long-term, basic work. It is directly related to the steady increase of grain production, the steady increase of farmers' income, and the continuous improvement of the ecological environment. Sex work.
Soil testing and formula fertilization is not only a simple technical work, but only the various sectors of the society are actively involved, each performing its duties and doing its best to truly promote the development of the work. The agricultural technology promotion system should be responsible for the core of soil testing, formula and fertilization guidance, and establish a technology promotion platform; the soil testing and fertilizer testing station, fertilizer production enterprises, fertilizer sellers, etc. should do a good job in formula fertilizer production and supply services, and establish a good production. And marketing mechanism; research and teaching units should focus on solving restrictive technologies or problems, and constantly improve and improve soil testing and formula fertilization technology.
The second is the misunderstanding of the relationship between soil testing and fertilizer field trials. Experts have suggested that soil testing and formula fertilization is not just a simple process of “taking medicine†by opening a “square†analysis result. Fertilizer field trials for different crops are the most direct and effective way to understand the effects of fertilizer application, crop growth and nutrient uptake, and the basis for conducting soil testing and fertilization, and the primary basis for formulating crop fertilization programs and recommendations. It is the premise of establishing a crop fertilization zone and must be highly valued.
In addition, soil testing is to select some representative plots to determine nutrient content within a certain range, give crop fertilization schemes, and other similar plots refer to it. It is impossible or necessary to determine the soil nutrients of each farm plot.
The third is the misunderstanding of soil nutrient rapid measurement. Experts analyzed that the soil nutrient rapid tester is operated in the field, and the external environmental conditions are difficult to control. The accuracy and accuracy of the test results of soil nutrients are difficult to guarantee. The results of soil nutrient test are relative values. It is necessary to have a matching fertilizer field plot test to establish a recommended index system for fertilization. At present, most soil nutrient rapid testers have not established a perfect recommended fertilization index. When there are only one or two soil samples, the soil nutrient speed meter can reflect “fastâ€; on the contrary, when the sample quantity reaches a certain batch (more than 3), compared with the routine test of the laboratory, “speed measurement†becomes "Slow test". Therefore, conventional soil nutrient testing is the best and most effective means to understand soil nutrients when conducting large-scale soil testing and fertilization. The promotion of soil speed measuring instruments should be cautious and should not be configured in large quantities.
Author: deciduous
At present, all over the country actively organizes soil testing and formula fertilization, but there are still some misunderstandings in understanding and carrying out this work. Some people think that this is a simple technical work, and the soil can be formulated and the soil speed can be configured in a large amount. Measuring instruments, etc., seriously affected the scientific nature of technology and misled farmers. To this end, the experts called for the “three major misunderstandings†to advance the implementation of soil testing and formula fertilization.
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