[1]HUANG Zhe,QU Shihua,BAI Lan,et al.Effects of Different Straw Mixing Biochar on Nutrient and Enzyme Activity of Saline Soil[J].Research of Soil and Water Conservation,2017,24(04):290-295.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
24
Number of periods:
2017 04
Page number:
290-295
Column:
Public date:
2017-08-28
- Title:
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Effects of Different Straw Mixing Biochar on Nutrient and Enzyme Activity of Saline Soil
- Author(s):
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HUANG Zhe1, QU Shihua1, BAI Lan1, SHANG Shaopeng1, LI Yumei2, ZHANG Lianke2
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1. Baotou Institute of Environment Science, Baotou 014010, China;
2. School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, China
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- Keywords:
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mixing biochar; saline soil; nutrient; enzyme activit
- CLC:
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S156
- DOI:
-
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- Abstract:
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The various effects of different straw biochar on nutrient contents and enzyme activities were studied in order to provide information for saline soil and proper management of residue. The saline soil that originated from the Inner Mongolia was used as the sample. The influences of corn stover, corn cob, reed and manicipal sludge mixing biochar that pyrolyzed that 450℃ on soil pH, CEC, nutrient contents and enzyme activities were investigated. The results showed that kinds of mixing biochar surface chemical functional groups were consistent and there were differences in contents; pH value was slightly lowered due to the increasing amount of mixing biochar, CEC in the saline soil was significantly improved. The three mixing biochar could ameliorate the nutrient contenst of saline soil. The application of biochar prepared by corn stover and sludge mainly promoted the level of available K while the biochar prepared by reed and sludge improved the contents of total P and available P. Adding mixing biochar had the significant promotive effects on the activities of sucrase and urease in the soil,and the promotive effects of adding high dose of biochar were significantly greater than those of adding middle dose or low dose of biochar.The impact of adding biochar on the activity of catalase in the saline soil presented that adding middle dose or low dose of biochar had significantly greater promotive effect on catalase activity than adding high dose of biochar.