Rice and Wheat Soil Testing Fertilization Technology

Overview of Rice and Wheat Soil Testing and Fertilizing Technology Extension Technology: Rice is the first and second largest crop in our province. Whether rational fertilization or not is related to food security and agricultural environmental protection issues in our province. Through soil testing and formulating fertilization, enterprises are encouraged to formulate specific formula fertilizers according to their prescriptions to guide farmers to apply fertilizers according to the rules, solve the problems of unreasonable fertilization structure, low utilization rate of fertilizers, and high production costs of fertilizers in rice and wheat production. The technique of soil testing and formula fertilization is advanced and mature, and the Ministry of Agriculture has specially formulated the technical specifications and promoted it as the largest promotion technology for science and technology. Soil testing and formula fertilization has been written into the Central No. 1 Document each year, which is included in the provincial government's “Three Agriculture” work focus and the Provincial Agricultural Committee is one of the practical things for farmers. The results of the “Promotion of Soil and Fertilizer Formula Fertilization Technology in Rice and Wheat in Jiangsu Province” have passed the appraisal organized by the Jiangsu Provincial Agricultural Commission (Su Nong Ke Jian [2011] No. 1). In 2011, it was awarded the first prize of Jiangsu Agricultural Technology Promotion.
Increased production and efficiency: Compared with conventional fertilization, soil testing and formula fertilization can increase production by 5-6% per mu, and increase production by more than 30 yuan per mu.
Technical key points: According to the requirements of the Technical Specifications for Soil Testing and Formula Fertilization of the Ministry of Agriculture, focusing on the five links of “measurement, distribution, production, supply, and application”, the focus is on sampling testing, field testing, formulation design, fertilizer processing, demonstration and promotion, Promotion training, effect evaluation, database and information system construction.
1. Core Technology:
1 Based on soil test results, using the method of subtraction of the ground force, apply the Stanford formula to recommend the amount of nitrogen fertilizer.
2 According to the 3414 test results, determine the abundance index of soil phosphorus and potassium by relative yield method.
3 Use Delphi method to recommend the amount of phosphorus and potassium fertilizers.
4 Use the cumulative curve method and expert consultation to design the county rice and wheat master formula.
5Using modern methods such as touch screens, PDAs, and the Internet to publish and query information.
2. Supporting technology:
Accurate quantitative cultivation is practiced to ensure good seed cultivation, scientific water slurry management, and water-adjusted fertilization with water-based fertilizer. Implement the “five-one” technical service model, that is, the county has a farmland resource management information system, the township has a fertilization section map, the village has a recommendation table for fertilization, the household has a copy of fertilizer recommendation card, and the distribution outlets provide one-time formula fertilizer. , Do the test to the field, with fertilizer to the factory, fertilizer to the point, guide the household. Wherever conditions permit, “smart fertilizer and fertilizer supply equipment” can be purchased at the basic fertilizer supply network to carry out personalized fertilizer and fertilizer supply services.
Appropriate area: Main rice and wheat production county (city, district)
Basics of promotion in 2012: Soil testing and formula fertilization have been implemented in major agricultural counties throughout the province.
Expected target for 2013: The province's rice and wheat promotion and application area is over 60 million mu.
Focus on promoting counties (cities, districts): the province's main rice and wheat production counties (cities, districts)
Note: In the organic fertilizer resource-rich areas and straw returning process, pay attention to the application of organic fertilizer, the amount of fertilizer application should be based on the equivalent effective amount of organic fertilizer deduction, so that organic and inorganic combination, a large number of elements and micro- Elements are combined.
Technical consulting unit: Jiangsu Province, farmland quality protection station, telephone.

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