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采用促进植物生长的解淀粉芽孢杆菌B9601-Y2拌、浸玉米种子和浇灌土壤后均能显著提高玉米生长速度和生物量。3×101～3×105 cfu/mL浓度菌液浸泡玉米种子1 h,播种后5 d苗高比对照(清水)提高119.88%～168.85%;浸种2 h,3×104 cfu/mL和3×105 cfu/mL处理则有抑制作用。采用1.6×108、6.2×107、3.9×107 cfu/mL菌液浇灌土壤,播种后7 d苗重比对照增加20.75%、27.36%和33.96%。以3.9×107～1.6×108 cfu/mL浓度菌液拌种处理,15 d苗龄的植株重量比对照增加4.03%～29.35%,在收获期株高增加6.00%～16.29%,产量增加5.76%～11.81%。高浓度处理促生长效果不如中浓度处理。
With the promotion of plant growth Bacillus amyloliquefaciens B9601-Y2 mix, dip corn seeds and watering the soil can significantly improve the corn growth rate and biomass. The seedlings were soaked in 3 × 101 ~ 3 × 105 cfu / mL for 1 h, and the seedling height increased 119.88% ~ 168.85% 5 d after sowing. Compared with the control, the seedling height increased by 119.88% ~ 168.85% 105 cfu / mL treatment was inhibited. The soil was watered with 1.6 × 108, 6.2 × 107 and 3.9 × 107 cfu / mL of bacterial liquid, and the seedling weight increased by 20.75%, 27.36% and 33.96% on the 7th day after sowing. The seedling weight of 15-day-old seedling increased by 4.03% -29.35% compared with the control at the concentration of 3.9 × 107-1.6 × 108 cfu / mL. The plant height increased by 6.00% -16.29% and the yield increased by 5.76% ~ 11.81%. High-concentration treatment to promote growth is not as good as the concentration of treatment.