Table 3

Grain potassium (K), calcium (Ca), magnesium (Mg) and sodium (Na) concentrations (mg/g) of six japonica rice cultivars under five N treatments in pot experiment of 2010

Cultivars / CK / N9-0 / N6-3 / N18-0 / N12-6 / Mean
K / Ningjing1 / 1.514a / 1.509a / 1.457a / 1.438a / 1.411a / 1.466
Ningjing2 / 1.523ab / 1.555ab / 1.646a / 1.57ab / 1.416b / 1.542
Wuyujing3 / 1.896a / 1.948a / 1.801a / 1.847a / 1.991a / 1.897
Wuyunjing7 / 1.912a / 1.912a / 1.982a / 1.856a / 1.832a / 1.899
Mean / 1.711a / 1.731a / 1.722a / 1.678a / 1.662a
Mg / Ningjing1 / 1.628a / 1.584ab / 1.622a / 1.480c / 1.507bc / 1.564
Ningjing2 / 1.682b / 1.588cd / 1.818a / 1.516d / 1.61bc / 1.643
Wuyujing3 / 1.697a / 1.484c / 1.599b / 1.459c / 1.588b / 1.565
Wuyunjing7 / 1.612a / 1.512b / 1.444b / 1.471b / 1.482b / 1.504
Mean / 1.655a / 1.542b / 1.621a / 1.481c / 1.547b
Ca / Ningjing1 / 0.206a / 0.189a / 0.194a / 0.191a / 0.201a / 0.196
Ningjing2 / 0.208a / 0.207a / 0.216a / 0.210a / 0.207a / 0.210
Wuyujing3 / 0.234a / 0.205c / 0.211c / 0.213bc / 0.227ab / 0.218
Wuyunjing7 / 0.216ab / 0.22ab / 0.22ab / 0.214b / 0.231a / 0.220
Mean / 0.216a / 0.205b / 0.210ab / 0.207b / 0.217a
Na / Ningjing1 / 0.019a / 0.019a / 0.015b / 0.021a / 0.019a / 0.019
Ningjing2 / 0.015a / 0.017a / 0.016a / 0.018a / 0.015a / 0.016
Wuyujing3 / 0.015a / 0.014a / 0.013a / 0.014a / 0.016a / 0.014
Wuyunjing7 / 0.014a / 0.016a / 0.016a / 0.016a / 0.018a / 0.016
Mean / 0.016ab / 0.016ab / 0.015b / 0.017a / 0.017ab