Technical content of soil testing and formula fertilization

The technical content of soil testing and formula fertilization mainly includes nine items: First, soil testing. According to the representative and typical principles, the soil samples were collected and the soil nitrogen, phosphorus, potassium, and trace elements were tested to understand the status of soil fertility. The second was field experiment. The agricultural technicians arrange the field plot test on the dominant crops of dominant crops to understand the laws of crop manure requirements, obtain fertilizer effect parameters, determine the optimum fertilization amount, base, top dressing distribution ratio, fertilization time, and fertilization method for each fertilizer unit in different crops; Crop fertilization model provides basis for fertilization partition and fertilizer formulation. The third is formula design. According to the soil testing and fertilizer test results, the organization experts discussed and proposed fertilization formulas for different regions and crops. The fourth is the correction test. The above fertilizer formulas were used to verify fertilization parameters through field experiments, to verify and improve fertilizer formulations, and to improve soil testing and formulating fertilization parameters. The fifth is formula processing. According to the relevant formula fertilization parameters, the relevant companies are commissioned to produce formula fertilizer. Sixth is a demonstration promotion. Establish a demonstration soil fertilization demonstration area, create a window for farmers, establish a model, and implement the technology in the field. Seventh is propaganda and training. Systematic training is provided for agricultural technicians, fertilizer production companies, fertilizer distributors and farmers at all levels. Eight is the effect evaluation. In the soil testing and fertilization project area, a dynamic survey was conducted and the farmers were randomly surveyed to solicit the opinions of the farmers and test their actual results to improve the management system, technical system and service system. Nine is technological innovation. In order to maintain the continuation and development of this technology, innovative research has been carried out in fields such as field test methods, soil testing, fertilizer preparation methods, and data processing, in order to continuously improve the technical level of soil testing and fertilizer application.

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