Research;
Center;
of;
Trace;
Elements,;
Huazhong;
Agricultural;
University,;
Wuhan;
430070,;
P.R.;
China;
Department;
of;
Horticulture,;
Foshan;
University,;
Foshan;
528000,;
P.R.;
China;
谷氨酰胺合成酶; 冬小麦品种; 氮素积累; 硝酸还原酶; 品种利用; 缺钼; 氮素利用效率; 硝酸盐含量;