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去年大跃进中,全国用土办法生产的洋化肥,成功的已有30多种。其中有些产品,例如,用硫磺脚渣制造的硫酸铵,含氮量达到20%以上;用土办法生产的过磷酸钙、钙镁磷肥、脱氟磷肥,有效磷最高达到18%;用硝土制造的硝酸钾,一般含氮12%以上,含钾30％以上。它们的质量都已达到或接近洋法生产的水平。 用土办法生产洋化肥,这在世界历史上是一个奇迹;用土办法在不到一年期间,生产出30多种洋化肥,这更是奇迹中的奇迹。 根据我省资源条件,现将适合我省推广的土化肥品种,简要介绍如下:
During the Great Leap Forward last year, more than 30 successful foreign fertilizers were produced domestically. Some of these products, for example, ammonium sulfate made from sulfur feet, have a nitrogen content of over 20%; superphosphate, calcium magnesium phosphate, defluorinated phosphate fertilizers produced by the soil method can reach up to 18% available phosphorus; Of potassium nitrate, generally more than 12% nitrogen, potassium 30% or more. Their quality has reached or approached the level of production by the Western France. It is a miracle in the history of the world to produce ocean fertilizers using indigenous methods. Using the soil method to produce more than 30 foreign fertilizers in less than a year is even more a miracle in miracles. According to the resources of our province, now suitable for the promotion of soil fertility varieties in our province, briefly described as follows: