Sustained Remodelling Notions on Microelement Cycle Loss in Modern Planting Environment - Study and Reflections of Coal Fly Ash Ameliorant as Supplied Resources of Soil Microelement

摘要

This paper sets up two microelement cycle system modes of modern and traditional planting environments, analyzes its differences and causes of microelement cycle loss within modern planting environment Considering the unsustained features of microelement cycle in modern planting environment and the existing issues of insufficient microelement content of bread baskets in some areas of China, it also points out the feasibility of utilizing the safe and inexpensive coal fly ash as supplied resources of soil microelement. The study also brings forward the theoretical basis that coal fly ash soil ameliorant can be used as sustained cycling supplement of microelement, and it's controlling approaches.