In the light of soil magnetism, this paper deals tentatively with the problem of raising utilizartion ratio of chemical fertilizer, one of the forefront subjects in agricultural production. 125 groups of data concerning soil magnetism, nutrient elements N, P, K and organic carbon were collected from Pinghu area of Hangzhou-Giaxing-Huzhou plain and are distributed in 36 depth profiles within 560 km². An analysis of the variation of these data with depths reveals that soil magnetism of the non-plough layer has a relatively good correlation with K, N and P but shows a rather poor correlation with organic carbon, suggesting that minerals responsible for soil magnetism have the capability of keeping nutrient elements. Soil magnetism of the plough layer is in relatively good correlation with organic carbon and P but shows a rather poor correlation with N and K. Soil magnetism, N, P and organic carbon are higher in the plough layer than in the non-plough layer, whereas things are just the opposite for K. From the non-plough layer to the plough layer, the increase of soil magnetism is 23.8%, much lower than the increase of N (55.3%) and P (36.6%) and the decreasing range of K (95.8%). This indicates that there exists disproportion in the application of chemical fertilizer in this area, which leads to the unbalance between soil magnetism and content of nutrient elements. Applying more magnetic fertilizer seems to be one of the ways for raising the effectiveness and persistence of the fertilizer.