Table 2 Nitrogen content, protein content, 1000-kernel weight and yield of barley samples under different treatments

1.29 ± 0.12

1.83 ± 0.14^*

2.30 ± 0.05^*

1.40 ± 0.21

1.65 ± 0.13^*

1.79 ± 0.05

1.92 ± 0.05^*

2.16 ± 0.05^*

1.50 ± 0.04^*

1.51 ± 0.01^*

11.01 ± 1.24

12.59 ± 0.49^*

14.28 ± 0.82^*

10.57 ± 0.67

10.70 ± 1.01

44.19 ± 0.15

44.41 ± 0.38

45.21 ± 0.24^*

43.81 ± 0.15

44.19 ± 0.26

1.82 ± 0.68

3.19 ± 1.59

3.35 ± 0.97^*

2.31 ± 0.57

2.69 ± 0.72