Soil testing, formula fertilization, misunderstanding, soil testing, formula fertilization is a scientific crop fertilization management technology, but incorrect understanding and development work will also have a negative impact on soil testing and formula fertilization. At present, there are three major misunderstandings in soil testing and formula fertilization. 1. Misunderstandings in soil testing Formula Fertilization is a long-term and basic work. It is a system consisting of a series of theories, methods, technologies, extension models, etc. Only the various sectors of society are actively involved in each of their duties. Do its best to really promote the development of soil testing and fertilizer application. 2. Mistakes in soil testing and fertilizer field test relationships Soil testing and formulating Fertilization is not just a result of laboratory analysis. It is a simple process to “pick up medicine†by opening a prescription. Fertilizer field trials are the only basis for researching, screening and evaluating soil nutrient testing methods and establishing different fertilization index systems for different testing methods. Fertilizer field trials for different crops are the most direct and effective methods for understanding fertilizer application effects, crop growth status, and nutrient absorption processes and results. Field trials are the basis for formulating fertilization by soil testing. 3. Mistakes in soil testing and formulation Mistake testing Soil testing is not determining the nutrient content of each plot in each plot. Instead, it selects some representative plots within a certain range, determines nutrient content, and gives crop fertilization plans. Other similar plots are conducted with reference to a representative plot fertilization scheme. Formulations are not designed for a specific piece of land but for a specific area. 4. Misunderstanding of Soil Nutrient Quick Measurement The soil nutrient fastness tester mainly refers to portable instruments that can be brought to the field to quickly test soil nutrients, but generally cannot guide the farmers to apply fertilizer scientifically and accurately. The results of soil nutrient test in soil testing and formula fertilization are relative values. It is necessary to have matching fertilizer field plots to establish the recommended fertilization index system. For soil testing, a small amount of sample soil nutrient tester can express rapid, and when the number of samples reaches a certain batch, the speed measurement becomes slower than the conventional test in the laboratory. Therefore, when carrying out soil testing and formula fertilization in large areas, conventional soil nutrient testing is the best and most effective means to understand soil nutrients. The popularization of soil velocity measuring instruments should be cautious and should not be configured in large quantities. Excerpted from China Agricultural Press>
Auxiliary Facilities
The greenhouse a filled with equipment like hydroponic, irrigation, auxiliary lighting ,temperature and humidity control and also may be automatically controlled by a computer to maximize potential growth.
Hydroponics can be used to make the most use of the interior space. The relatively closed environment of a greenhouse has its own unique management requirements, compared with outdoor production. Pests and diseases, and extremes of heat and humidity, have to be controlled, and irrigation is necessary to provide water. Most greenhouses use sprinklers or drip lines. Significant inputs of heat and light may be required, particularly with winter production of warm-weather vegetables.
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