The calcareous soil which was collected from main peanut cultivated areas in Shandong province was utilized to investigate the different effect of Bordeaux nutrition protective powder(BNPP) and Kocide on validity of iron and copper in calcareous soil and yield of peanuts.The research results indicated that the pH value of soil had been declined differently at all times by spraying BNPP

but the pH value of Kocide treatment was declined first and then rose at the last time

compared with CK(the treatment which only sprayed water).In addition

the chlorophyll content

active iron content in young leaves and total iron content of root

stem and leaves of peanut had been increased differently by spraying BNPP.But the available copper content of BNPP treatments was lower than that of Kocide treatments

which could alleviate copper contamination of soil.Moreover

the yield of peanuts with BNPP treatment had been increased by 125% to 153%

compared with CK.As a result

the effect of BNPP was better than Kocide.