This paper is based on the background of different effective soil amount resulting from two different sectional types "wave type" and "flat type" under the current cultivation system in the black soil of Songliao Plain maize belt.The tested soil is the medium-fertility black soil in the experiment station of Jilin agricultural university.The paper has studied the effects of different soil amount on the total nitrogen content

the total phosphorus content

the total potassium content and nutrients uptake amount of maize plant during the weeding stage

the heading stage and the maturity stage by the outdoor simulation pot experiment.The results was shown that the total nutrients of maize plant were increased with the increasing of packing soil amounts

however the total nutrients of maize plant reached to the highest value during the seeding stage

and they decreased gradually subsequently

and the rate of decreasing reached to the quickest during the stage from seeding to heading

but after heading stage

the decreasing rang is not significant.