Nitrogen Losses from Winter Wheat Plant by NH3 Volatilization in Late Growing Stage Preliminary Study on the Exchange of Gaseous Nitrogenous Compounds in Phyllosphere of Oryza sativa L. at Flowering and Seed Setting Stages REVIEW OF RESEARCH STATUS, PROSPECTS AND MECHANISM OF LOSSES OF NITROGENOUS COMPOUNDS FROM ABOVE-GROUND PLANT PARTS Preliminary Study on the Gaseous Nitrogenous Compounds Losses from Wheat Plant at Flowering and Seed Formation Stage Effects of low rate nitrogen application on Brassica chinensis growth and Nlosses Fate and recovery efficiency of controlled release nitrogen fertilizer in flooding paddy soil