[1]ZHONG Chong-fu,ZHANG Qing-song,HUI Jian-chun,et al.Effects of Modifiers on Zinc, Chromium and Nutrient Availabilities in Soil[J].Research of Soil and Water Conservation,2010,17(06):233-236.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
17
Number of periods:
2010 06
Page number:
233-236
Column:
Public date:
2010-12-20
- Title:
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Effects of Modifiers on Zinc, Chromium and Nutrient Availabilities in Soil
- Author(s):
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ZHONG Chong-fu1, ZHANG Qing-song1, HUI Jian-chun2, ZHU Xue-mei1
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1. College of Resources and Environment, Sichuan Agricultural University, Ya’an, Sichuan 625014, China;
2. Ya’an Soil and Water Conservation Monitoring Substation, Ya’an, Sichuan 625000, China
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- Keywords:
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modifier; compound pollution of zinc and chromium; soil nutrient; availability
- CLC:
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S156.2
- DOI:
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- Abstract:
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Five different types of modifiers were applied in compound pollution of zinc and chromium soil to analyze the effects of modifiers on zinc, chromium and nutrient availabilities in soil. Five modifiers changed the soil pH. Superphosphate, wheat straw and rape straw decreased soil pH, and lime and rabbit manure increased soil pH. Five modifiers significantly decreased the available zinc and chromium contents in soil. The lowest available zinc content (20.00 mg/kg) appeared in the wheat straw (high concentration) treatment, which decreased by 53.25% compared with CK, and the lowest available chromium content (3.18 mg/kg) appeared in the lime (high concentration) treatment by 60.15% compared with CK. All modifiers significantly increased the soil available phosphorus, potassium and alkaline hydrolyzed nitrogen contents, except that superphosphate and lime decreased available potassium content. The maximum alkaline hydrolyzed nitrogen (124.56 mg/kg) appeared in the rabbit manure (high concentration) treatment, which increased by 41.51% compared with the CK. The maximum available phosphorus (42 mg/kg) appeared in the superphosphate (high concentration) treatment, increased by 133.33% compared with the CK, and the maximum available potassium (211.56 mg/kg) appeared in the wheat straw (high concentration) treatment, increased by 136.88% compared with the CK.