LIU Ling, YUE Feixue, LI Jiwei, et al. Effects of Stalk-derived Biochar and Chicken Manure on the Growth and Physiological Characters of Maize Under Lead Stress[J]. 2018, 32(4): 262-267.
DOI:
LIU Ling, YUE Feixue, LI Jiwei, et al. Effects of Stalk-derived Biochar and Chicken Manure on the Growth and Physiological Characters of Maize Under Lead Stress[J]. 2018, 32(4): 262-267. DOI: 10.13870/j.cnki.stbcxb.2018.04.041.
Effects of Stalk-derived Biochar and Chicken Manure on the Growth and Physiological Characters of Maize Under Lead Stress
A pot experiment was conducted to investigate the effects of different stalk-derived biochar added (20
40 g/kg soil)
different chicken manure added (20
40 g/kg soil)
combination of stalk-derived biochar and chicken manure (20 g/kg soil
respectively) applications on the growth and physiological characters of maize under lead stress. Results showed that all treatments with stalk-derived biochar or/and chicken manure addition significantly increased plant height and fresh weight of maize
photosynthetic pigment contents
photosynthesis characteristics and antioxidant enzyme activities. Amending soil with stalk-derived biochar and chicken manure together produced the largest increment in maize growth and physiological characteristics. This effect was additive
with 69.9%
50.0% greater fresh weight and plant height
50.0%
97.9%
126.5%
132.6% higher chlorophyll b content
net photosynthetic rate (Pn)
transpiration rate (Tr) and stomatal conductance (Gs)
68.4%
69.4%
115.3% higher activities of superoxide dismutase (SOD)
peroxidase (POD)
catalase (CAT)
88.6%
48.6% higher proline and soluble sugar
respectively. The combination of stalk-derived biochar and chicken manure treatment played the best effective role on promoting the growth of maize
improving leaf photosynthetic and antioxidant capacity under lead stress. This study provides a cost-effective way for improving the soil quality of Pb-contamination and crop growth.
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