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本研究以粳稻辽粳5号为试材，在非称重式钢筋混凝土结构的蒸渗仪中进行水稻腾发量研究。结果表明气象因素是水稻腾发量的主要影响因素，在此基础上建立了水稻增发量与空气饱和差、日照、风速和气温之间关系的数学模型；教学模型经检验具有较高精度，可用于东北沈阳地区水稻灌区的灌溉预报。
In this study, Japonica rice Liaojing 5 was used as test material to study the amount of rice evapotranspiration in a non-weighing type reinforced concrete structure lysimeter. The results showed that the meteorological factors were the main influencing factors of rice evapotranspiration. On this basis, a mathematical model was established for the relationship between the amount of rice accretion and the air saturation, sunshine, wind speed and air temperature. The teaching model was tested with high precision and available Irrigation forecast in rice irrigation area in northeast Shenyang area.