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四川省复混肥开发组于1985年由省化肥公司和省农科院土肥所联合组成,全面负责我省复混肥开发的规划、管理与实施工作。目前全省已布点32个化肥厂,形成年生产能力50多万吨和已生产50多万吨的复混肥生产格局;同时,进行了一系列试验、示范、推广工作,特别是在我省主要作物和主要土类上的130个田间试验,积累了大量的科学数据,有力地促进了复混肥的推广。现将我省复混肥的应用情况作一简结,并谈几点粗浅的认识。一农业化学的理论指出,不同作物或同一作物的不同生长阶段,对养分种类和数量的需求是多种多样的,包括对大量、中量和微量元素的不同
Sichuan Fertilizer Development Group in 1985 by the provincial fertilizer company and the Provincial Academy of Agricultural Sciences jointly organized by soil and fertilizer, fully responsible for the development of our province’s fertilizer development planning, management and implementation. At present, 32 chemical fertilizer plants have been set up in the province, forming an annual production capacity of more than 500,000 tons and producing more than 500,000 tons of compound fertilizer. At the same time, a series of experiments, demonstrations and popularizations have been carried out, A total of 130 field trials on major crops and major soil types accumulated a large amount of scientific data, which effectively promoted the promotion of compound fertilizers. Now the application of fertilizer in our province to make a summary, and talk about a few superficial understanding. An agrochemical theory states that the demand for nutrient types and amounts varies from crop to crop or from one growth stage to the same crop and includes a large variety of different amounts of trace minerals