哪位高手帮忙翻译一下，要通顺的，不用改的。急！谢谢。

Origin experiment to experiment through a potted plant, under the circumstance that nitrogen fertilizer dosage homology measurement not and meantime the nitrate in the soil, ammonia nitrogen and whole nitrogen content, research nitrogen within soil vegetable with time of variety and dissimilarity of soil it variety of difference.Pass to experiment a data to get to draw a conclusion:In the soil the nitrate concentrations is after apply fertilizer first and continuously ascension, descend after arriving top, imply machine quality many of the soil nitrate concentrations be always less;Ammonia nitrogen the density is after apply fertilizer density quick ascension, attain biggest value empress quick descend, imply machine quality many of soil ascension speed with descend speed all quicker;The whole nitrogen density big body present to descend trend and imply machine quality many of the soil descend of speed sooner, but is apply fertilizer initial stage it also ability fix more nitrogen v