NITROGEN USE EFFICIENCY AND FATE OF N FERTILIZERS APPLIED TO OPEN FIELD VEGETABLES
CAO Bing 1 HE Fa-yun 2 XU Qiu-ming 1 CAI Gui-xin 2(1.Institute of Plant Nutrition and Resources,Beijing Academy of Agricultural and Forestry Sciences,Beijing 100097;2.China State Key Laboratory of Soil and Sustainable Agriculture,Institute of Soil Science,Chinese Academy of Sciences,Nanjing,Jiangsu 210008)
J4 . 2008, (03): 343 -347 .  DOI: 10.11869/hnxb.2008.03.0343