Enhancement of agro-management strategies and implementation protocols for nickel phytomining
Vast expanses of ultramafic soils across the globe that are rich in heavy metals,such as nickel,but lacking essential nutrients,such as nitrogen and phosphorus,present a significant challenge for effective land utilization.The scientific community has proposed phytomining technology for economically exploiting and extracting nickel by hyperaccumulator plants grown in such soils for both soil remediation and nickel supply risk alleviation.This technology has been implemented in North America,Europe,and Southeast Asia.Targeted agronomic management measures are necessary to improve the efficiency of phytomining for nickel and enhance the economic viability of phytomining due to the limited growth rate and biomass of hyperaccumulators.In this context,we review the effects of soil amendment measures(e.g.,regulation of soil pH,application of soil amendments)and cultivation management measures(e.g.,fertilization,weed control,planting pattern)on the growth and nickel accumulation of hyperaccumulator plants.Moreover,we summarize the main advances in nickel phytomining agronomic management research in China,aiming to provide guidance and references for future research into agromining.
万方数据
维普
