Hawkins, S. E.S. E.HawkinsMengel, D. B.D. B.MengelTsai, C. Y.C. Y.Tsai2011-07-222018-07-062011-07-222018-07-061985http://ntur.lib.ntu.edu.tw//handle/246246/236270en-USScreening corn hybrids for N efficiency