| 高海宁,焦扬,李彩霞,张勇,杨彬.Na+对两株土壤微生物溶硅溶磷的影响[J].干旱地区农业研究,2012,30(6):162~167 |
| Na+对两株土壤微生物溶硅溶磷的影响 |
| Effect of Na+ on sillicon and phosphorus dissolved by two strains microorganisms |
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| DOI：10.7606/j.issn.1000-7601.2012.06.28 |
| 中文关键词: 菌株 Na+ 溶硅 溶磷 |
| 英文关键词:bacterial strain Na+ dissolved silicon dissolved phosphorus |
| 基金项目:甘肃省高校省级重点实验室项目(XZ1015) |
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| 中文摘要: |
| 考察了Na+对Rs-2和Rs-4两株土壤微生物溶硅溶磷的影响。结果表明:Na+可促进Rs-2、Rs-4菌株溶硅能力的增加。在1.5%NaCl条件下,Rs-4菌的最大溶硅量为106.92μg/mL;在3%NaCl条件下,Rs-2菌株的最大溶硅量为148.9μg/mL。而且Na+能够促进Rs-4菌株溶磷能力的增加,在3%NaCl条件下,Rs-4菌株的最大溶磷量为115.68μg/mL,但Na+降低了Rs-2菌株的溶磷能力。Rs-2菌株溶硅量随时间的变化符合Logis-tic曲线类型,回归分析表明溶硅量与时间呈正相关且回归关系显著。Rs-4菌株溶磷量随时间的变化符合二项式类型,回归关系极显著且模型有很高的可信度。 |
| 英文摘要: |
| Research was conducted to observe the impact of Na+ ion on silieon(Si) and phosphorus(P)dissolved by Rs-2 and Rs-4 strains. The results indicated that NaCl condition could improve Si dissolved by Rs-2 strains and Rs-4 strains. When Rs-4 strains were cultivated 72 hours, concentration of dissolution Si reached 106.92 μg/mL under 1.5% NaCl, and 148.9 μg/mL by Rs-2 strains uhder 3% NaCl. Then, NaCl condition could facilitate dissolution P capacity of Rs-4 strains, after 72 h, concentration of dissolution P reached 115.68 μg/mL under 3% NaCl. Further-more, based on the changing with time, dissolution Si character of Rs-2 strains accorded with Logistic curve type, and regression analysis showed that dissolved silicon and time was in positive correlation and had significant relationship. Followed dissolution P character of Rs-4 strains accorded with binomial type, and had very significant relationship and high reliability. |
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