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通过田间的观测研究，明确了稻田中氨挥发速率与田面水的氨分压和田面水以上的风速之间，存在着一定的函数关系。本试验主要研究降低田面水表面的氨向大气逸失，研究稻田水面分子膜对提高氮肥利用率的作用及对水稻产量的影响。试验结果表明，水面分子膜能够大大降低氨挥发速率，减少氮素损失。稻田在施入尿素或碳铵肥料后加施水面分子膜比对照（不加膜）明显增加了水稻有效穗、穗粒数、千粒重，增加了产量；随着施肥量增加施水面分子膜的增产效果越好；碳铵施膜效果好于尿素施膜效果。施膜一般增产在３％—６．８％，产投比８：１。用差值法进行小区植株含氮量测定，施水面分子膜比对照氮肥利用率提高了６．５％—１１．６％。
Through the field observation and research, it is clear that there is a certain functional relationship between ammonia volatilization rate in rice field and ammonia partial pressure in surface water and wind speed above surface water. The main purpose of this experiment is to reduce the ammonia loss to the atmosphere from the surface water of the paddy field and to study the effect of paddy surface water molecular film on the improvement of nitrogen use efficiency and its effect on rice yield. The experimental results show that the water molecular film can greatly reduce the ammonia volatilization rate and reduce the nitrogen loss. After applying urea or ammonium bicarbonate fertilizers, the application of water-surface molecular membrane in paddy field increased the effective panicles, grains per spike and 1000-grain weight and increased the yield as compared with the control (without membrane addition). With the increase of fertilizer application, The better the effect; ammonium bicarbonate membrane effect is better than the urea membrane effect. Film generally increase production at 3% -6.8%, production and investment ratio of 8: 1. Difference method was used to determine the nitrogen content in plant plot. The utilization rate of nitrogen fertilizer on water surface increased by 6.5% -11.6% compared with the control.