Fig. 3. Bracts, cobs and grain dry matter at the phenological R6 stage. Nc: conventional amount of nitrogen; No: theoretical optimum; C: control. Lower case letters show significant differences between the treatments (Duncan, a = 0.05).
Fig. 3. Bracts, cobs and grain dry matter at the phenological R6 stage. Nc: conventional amount of nitrogen; No: theoretical optimum; C: control. Lower case letters show significant differences between the treatments (Duncan, a = 0.05).