Effects of CRFS Residual Coating on Soil Physical Property and Growth of Cole

Effects of Controlled Release Fertilizers residual coating(CRFRC) on soil physical property and growth of cole were studied in potted cole experiment.The results indicated that the soil bulk density decreased,the total porosity increased obviously,and the specific gravity changed little with Controlled Released Fertilizers residual coating.Controlled Released Fertilizers residual coating had effect on the growth of cole.The contents of chlorophyll,number of leaves,leaf area and growth potential of the cole had been increased obviously with the added of residual coating content.Besides,the reductive Vc content of cole had been increased by Controlled Released Fertilizers residual coating and the reductive Vc content of CRFRC2 treatment was higher than other treatments.In addition,Controlled Release Fertilizers and common compound fertilizers had no differences in the growth of cole because the release time of CRFS was a little longer.As a result,Controlled Released Fertilizers residual coating was beneficial to soil and plants if it was controlled in appropriate extension.