J4 ›› 2013, Vol. 26 ›› Issue (1): 22-27.doi: 10.3976/j.issn.1002-4026.2013.01.006
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JI Jing-Qi, XIA Zhi-Jie, SI Hong-Li, DAI Mei-Xue
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Abstract:
We employ plate counting to investigate the impacts of different varieties and farming methods on the rhizosphere soil microorganisms of sweet potato in order to reveal the improvement effect of sweet potato planting on saline and alkaline land. Results show that film, suitable density (4 167 plants/666.67 square meter) and organic fertilizer can improve the quantity of soil microbe to different extent. Results of potassium topdressing demonstrate that foliage spraying phosphoric fertilizer more significantly improve the quantity of rhizosphere soil microorganism than fertilizing potassium. However, potassium fertilized by K2HPO4 or KNO3 does not have significant impacts.
Key words: sweet potato, rhizosphere soil microorganism, saline and alkaline land, variety, farming method
CLC Number:
Q938
JI Jing-Qi, XIA Zhi-Jie, SI Hong-Li, DAI Mei-Xue. Impacts of different varieties and farming methods on rhizosphere soil microorganisms of sweet potato in saline and alkaline land[J].J4, 2013, 26(1): 22-27.
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