Journal of Ecology and Rural Environment ›› 2010, Vol. 26 ›› Issue (3): 286-288.doi: CNKI:SUN:NCST.0.2010-03-023
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MA Hong-Mei, HONG Jian-Ping, XIE Ying-He, XU Xian-Ju
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Abstract: A pot experiment was conducted on effect of phosphorus application on iron content in peashrub(Caragana microphylla) in calcareous soil. Results indicate that with increasing P application rate, peashrub shoot increased in dry weight and did the most in Treatment P3 (100 mg·kg-1 P2O5), by 10.8%~16.7% over CK; at its early growth stage, peashrub in plots low in P application was higher in iron content and the content increased with growth and increase in biomass of the plant. The increase was faster in plots higher in phosphorus than in plots lower in phosphorus. The iron content in peashrub was the highest in Treatment P3 at the fourth sampling,reaching 1 428.3 mg·kg-1; and the total iron content in peashrub shoots was also the highest in Treatment P3 at the fourth sampling,reaching 10.269 mg·pot-1. So it is quite obvious that peashrub is a good choice for ecological revegetation in iron ore mining areas.
Key words: peashrub, phosphorus application rate, iron enrichment, calcareous soil, ecology reestablishment
CLC Number:
X173
MA Hong-Mei, HONG Jian-Ping, XIE Ying-He, XU Xian-Ju. Iron Content in Peashrub Affected by Phosphorus Application in Calcareous Soil[J]. Journal of Ecology and Rural Environment, 2010, 26(3): 286-288.
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http://www.ere.ac.cn/EN/Y2010/V26/I3/286