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在研究分析中国现代种植环境中土壤微量元素循环的规律和缺乏现象的基础上,针对其不可持续性提出了选用低灰和低有害物质的粉煤灰作为土壤微量元素补充改良剂使用的理论观点,并通过选择用以大同煤为燃料的胜利油田发电厂排出的粉煤灰为研究对象,在龙口地区进行了大田种植玉米的试验研究。研究结果表明某些低灰的且有害元素含量少的煤所形成的粉煤灰,可以作为土壤微量元素补充的改良剂来大量使用并获得较好的土壤改良和农作物增产的效果。
On the basis of studying the regularity and lack of circulation of soil trace elements in modern planting environment in China, this paper puts forward the theory of using fly ash with low ash and low harmful substances as the supplementary modifier of soil trace elements for its unsustainability , And selected fly ash discharged from Shengli Oilfield Power Station with Datong coal as the research object, conducted a pilot study on field planting corn in Longkou area. The results show that some fly ash with low content of ash and low content of harmful elements can be widely used as modifier of soil trace element supplement and obtain better soil improvement and crop yield enhancement.