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1988年;据成都土肥测试中心和14个县的统计,共监检化肥样品548,其中,氮肥74个,合格率81.1％。磷肥324个,合格率27.2％;复混肥97个,合格率44.3％;磷酸二氢钾33个,均不合格。问题最突出的是磷肥,不合格率在73％以上。有的地方不仅质量低,而且价格高,崇庆县西江红桥磷肥厂的过磷酸钙,经取样检验,有效含量五氧化二磷才3.45％,水分含量高达20.48％(国家专业标准规定:过磷酸钙四级品的五氧化二磷含量为12％,水分含量≤14％)。复混肥料问题也不少,中江县农技推广中心化验室抽检14个复混肥样品,有效养
In 1988, according to statistics from Chengdu Fertilizer Testing Center and 14 counties, a total of 548 chemical fertilizer samples were inspected, of which 74 were nitrogenous fertilizers, with a pass rate of 81.1%. There were 324 phosphate fertilizers with a pass rate of 27.2%, 97 compound fertilizers with a pass rate of 44.3% and 33 potassium dihydrogen phosphate, all of which failed. The most prominent issue is the phosphate fertilizer, substandard rate of 73% or more. In some places, not only the quality is low, but also the price is high. The superphosphate in Hongqiao Phosphate Fertilizer Plant of Xijiang River in Chongqing County is 3.45% of the effective content of phosphorus pentoxide and 20.48% of the water content by sampling inspection (national professional standards: Phosphate four products of phosphorus pentoxide content of 12%, moisture content ≤ 14%). There are also many problems of compound fertilizers, Zhongjiang County Agricultural Technology Extension Center laboratory sampling of 14 samples of compound fertilizer, effective support