Nitrogen Use Efficiency as Affected by Phosphorus and Potassium in Long-Term Rice and Wheat Experiments

He Xin-hua; Shi Xiao-jun; Li Shuang-lai; Sun Xi-fa; He Xin-hua; SCI

机构： Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Minist Agr, Key Lab Crop Nutr & Fertilizat, Beijing 100081, Peoples R China; Southwest Agr Univ, Coll Resources & Environm, Chongqing 400716, Peoples R China; Hubei Acad Agr Sci, Inst Plant Protect & Soil Sci, Wuhan 430064, Peoples R China; Sichuan Acad Agr Sci, Soil & Fertilizer Inst, Chengdu 610066, Peoples R China; Univ Western Australia, Sch Plant Biol, Crawley, WA 6009, Australia;

来源：JOURNAL OF INTEGRATIVE AGRICULTURE年份：2014

关键词： apparent nitrogen balance grain yield nitrogen agronomic efficiency nitrogen loss soil nitrogen accumulation