Analysis of Fertilization Compounding Rate and Compound Fertilizer Consumption Status and Changes (Part Ⅰ)
JIA Ke;SHEN Bing;ZHANG Tianshan;ZHU Yanfeng;QU Yandi;WANG Xu;College of Resources and Environmental Sciences, Hebei Agricultural University;Sino-Arab Chemical Fertilizer Co., Ltd.;China BlueChemical Ltd.;
Through two periods spanning 10 years, the basic situation of fertilization of 70 crops and 3 602 farmers in 22 provinces, municipalities, and autonomous regions in China has been investigated, and the statistical data have been summarized in order to grasp the level of fertilization compounding rate and status and change law of nutrient input of farmers in customary fertilization in China, and then clarify the future development trend of the compound fertilizer industry, so as to provide theoretical support for fertilization recommendation and the formulation of macro policies. The research results show that based on the large number of farmer fertilization surveys, the use rate of compound fertilizers for various crops has increased, with an average increase of 31.2%; the use rate of compound fertilizers in base fertilizers has increased significantly, with an average increase of 28.5% for various crops; the amount of compound fertilizer applied per unit area of different crops has increased significantly, with an average increase of 77.2%; the utilization mode of compound fertilizer in corn base fertilizer has changed to a certain extent. The proportion of deep tillage and covering soil of spring corn has decreased while the proportion of hole application(seed and fertilizer sowing together) has increased significantly. The proportion of summer corn seed and fertilizer sowing together has increased to 76.0%, while the proportion of furrow fertilization or spray fertilization has decreased to 11.6%; the use rate of commercial organic fertilizers has increased sharply, with an average increase of 351.7%; the structure of topdressing fertilizers has changed, the use rate of straight fertilizers has decreased, while the use rate of compound fertilizers has increased significantly, and the use rate of special fertilizers such as water-soluble fertilizers and foliar fertilizers on cash crops has increased; the application rate of special compound fertilizer applied to base fertilizer and topdressing is on the rise.
【CateGory Index】： F426.72;S147.2