Study on trace elements of wheat grain in different fertilizer treatments

This experiment shows that the amount and component of fertilizer have remarkable effect on the trace elements in wheat grain.In low level fertilizer treatments,the trace elements of Mn、Zn and Fe in grain increase (the Zn increase one multiple),and elements of Cu、Al decrease.In middling level fertilizer treatments,when the amount of trace fertilizer increase one time,the elements of Mn、Al and Zn would increase 11.2%、50.0% and 30.1%,but the component of Fe and Cu have little change.If change the amount and component of fertilizer the elements of Mn、Zn、Cu in grain would decrease.In high level fertilizer treatment,if increase K fertilizer,it would increase the component of Mn、Zn、Fe、Al in grain to 23.2%、16.2%、33.9% and 58.6%.And the component of Cu change a few.If increase the fertilizer of N in middling level fertilizer treatments,it would decrease the trace elements component.In high level fertilizer treatments,if decrease the amount of N,it can increase the accumulation of Fe、Al and Zn in grain.The element of Fe can increase 2.14~2.64 times,and Al increase about to 63.7%~65.7%、Zn about to 15.3%~17.5%.The change of Cu is little.The component of Mn in grain would increase with the increase of P fertilizer.