多元微肥是世界先进国家已普遍使用的新型化肥,也是我国“七五”期间重点推广的衣业项目之一。近几年,经我国几百万亩的推广使用(从小试、中试到大面积推广),都取得了明显的增产效果。一般大田作物可增产10％以上;水果蔬菜等经济作物增产15％以上。多元微肥技术的开发,经历了从单元到多元的过程。我国从五十年代中期开始研究单元微肥硼肥的应用,到七十年代进行了钼肥试验和土壤测定。1978年有关部门对全国土壤微量元素锌、铝、锰、硼、铜、铁的含量作了概查。1980年中国科学院微量元素学术交流提 Multivariate fertilizer is a new type of fertilizer that is widely used in advanced countries in the world and is also one of the major clothing projects promoted during the “Seventh Five-Year Plan” in China. In recent years, several million mu of China’s popularization and use (from small pilot, pilot to large-scale promotion), have achieved significant yield increase. General field crops can increase 10% or more; fruit and vegetables and other economic crops more than 15% increase. Multi-element fertilizer technology development, has gone from the unit to the process of diversity. From the mid-1950s, China began to study the application of elemental micronutrient boron fertilizer to molybdenum fertilizer test and soil determination in the seventies. In 1978, relevant departments conducted a survey on the contents of trace elements zinc, aluminum, manganese, boron, copper and iron in the soil of the whole country. Mention of Trace Elements Academic Exchange of Chinese Academy of Sciences in 1980