Table 2.

Influences of different treatments (FP: farmer conventional fertilization control; BM: bone meal application control; X2: bacteria agent X2; X3: bacteria agent X3; X21: bacteria agent X21) to wheat yield components. Data are shown as Mean ± SD. Different lowercase letters indicate significance among different treatments at the 5% level

Treatments	Aboveground biomass(kg hm−1)	Spike number (× 105 hm−1)	Grain number per spike	1000-grain weights (g)	Yield(kg hm−1)	Yield increase rate (%)
FP	8213.98 ± 327.85b	28.30 ± 1.11c	35.74 ± 0.30a	40.22 ± 1.44c	5648.50 ± 90.15b	0
BM	8663.97 ± 327.49b	30.37 ± 1.40c	35.98 ± 1.24a	41.54 ± 0.81c	5695.64 ± 72.67b	0.83
X2	14,466.32 ± 1799.52a	44.00 ± 1.66b	36.17 ± 0.22a	44.42 ± 0.60b	6279.82 ± 103.35a	11.18
X3	16,350.46 ± 1425.65a	47.47 ± 1.96a	37.19 ± 1.55a	48.30 ± 1.84a	6463.17 ± 187.35a	14.42
X21	14,973.23 ± 1432.44a	45.57 ± 1.37ab	36.46 ± 0.49a	46.65 ± 1.24ab	6394.63 ± 159.27a	13.21