Insufficient nutrient supply during later growth period in plastic mulched crops has been a big problem since top dressing is unpractical.The effects of different kinds of long-lasting urea (MUA1 and MUA2) and long-lasting ammonium bicarbonate (MAB) on plastic mulched winter wheat were compared with normal urea (UA) and normal ammonium bicarbonate (AB) applied as basal dressing all in one time in a field trial.As compared with UA, MUA1 and MUA2 were found to increase wheat grain yield by 10.5% and 12.4%, increase the nitrogen use efficiency (NUE) in grain by 10.1 and 10.9 percentage points, and the nitrogen productivity index (NPI) by 3.9 kg and 4.6 kg.MAB, the fertilizer effects of which was approximately equal to that of UA, was found to have an increase of grain yield by 6.6%, increase of NUE and NPI by 5.8 percentage points and 2.3 kg respectively compared with AB.Until two weeks before the harvest, MUA1, MUA2 and MAB kept the higher green-leaf index and the larger flag leaf area, increasing by 18.5%, 34.8%, 12.3%, and 25.9%, 34.5%, 42.90% respectively, which may contributed to the higher grain yield and nitrogen use efficiency.