Rare Earth Fertilizer Impact On The Agro-ecological Environment

With rare earth trace fertilizer in agriculture broad applications, a growing number of rare earth elements into the agriculture and water ecosystems, Ree after entry to the impact of the work has been rare earth agro-technology, and rare earth biological and ecological effects of the environmental impact study in a more active, but how scientific and rational use of rare earth, give full play to their physiological ecological effects on the environment and minimize its negative effects of human systematic study very weak, only little information is vague on a number of studies into the rare earth trace fertilizer soil after crops internal systems and the distribution of agricultural ecosystems, The paper plants and crops through pilot testing of wheat and consumption of peanuts two representative crops data, a variety of data analysis in the rare earth trace fertilizer specific crops distribution through data analysis to prove agricultural Ree safety issues. Moreover, due to the large number of rare earth elements into water bodies environment, according to the theoretical assumptions that can promote the growth of crops, the growth of algae also be facilitating role, a role which will directly affect the nutrient over-enrichment of water bodies。In theory with practical principles, I adopted the method of static laboratory simulation of the water environment for the static test waters were added different concentrations of mixed rare earth, the use of periodic testing waters N, P, do, Cod chlorophyll content and species level approach to the study of nutrient over-enrichment mixed waters duckweed algae growth.The results showed that During the experiment, add lower concentrations of mixed rare earth (0.10mg/L,0.20mg/L,0.40mg/L) to promote growth and experimentation red duckweed nutrient over-enrichment of water bodies However, with further concentration rise (0.80mg/L), Duihong duckweed growth of nutrient over-enrichment of water bodies and experiments have struck.At the same time the mixed rare earth and separate add lanthanum, cerium sensitive point for a comparative analysis, and single Ree and Ree promotion of a mixed comparison identify their limits and the mutual promotion of the same concentration as compared to that of a single element lanthanum...