Fig. 2

The number of OTUs of soil in maize rhizosphere in different periods. Note: O indicate that the soil at the time of planting; C1 indicate that the rhizosphere soil at the time of the three-leaf stage of control; C2 indicate that the rhizosphere soil at the time of the jointing stage of control; C3 indicate that the rhizosphere soil at the time of the tasseling stage of control; C4 indicate that the rhizosphere soil at the time of the maturity stage of control; T1 indicate that the rhizosphere soil at the time of the three-leaf stage of P8/P10/X52; T2 indicate that the rhizosphere soil at the time of the jointing stage of P8/P10/X52; T3 indicate that the rhizosphere soil at the time of the tasseling stage of P8/P10/X52; T4 indicate that the rhizosphere soil at the time of the maturity stage of P8/P10/X52