| Effect of biomass carbon input on corn biological index cultivated under saline stress |
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| DOI：10.7606/j.issn.1000-7601.2018.02.03 |
| Key Words: biomass carbon saliferous gray desert soil corn |
| Author Name | Affiliation | | LIU Yi | Institute of Soil Fertilizer and Agricultural Water Saving, Xinjiang Academy of Agricultural Sciences, Urumchi, Xinjiang 830091, China | | MENG A-jing | Institute of Soil Fertilizer and Agricultural Water Saving, Xinjiang Academy of Agricultural Sciences, Urumchi, Xinjiang 830091, China | | HUANG Jian | Institute of Soil Fertilizer and Agricultural Water Saving, Xinjiang Academy of Agricultural Sciences, Urumchi, Xinjiang 830091, China | | QI Tong | Institute of Soil Fertilizer and Agricultural Water Saving, Xinjiang Academy of Agricultural Sciences, Urumchi, Xinjiang 830091, China | | FENG Yao-zu | Institute of Soil Fertilizer and Agricultural Water Saving, Xinjiang Academy of Agricultural Sciences, Urumchi, Xinjiang 830091, China | | TANG Guang-mu | Institute of Soil Fertilizer and Agricultural Water Saving, Xinjiang Academy of Agricultural Sciences, Urumchi, Xinjiang 830091, China | | GE Chun-hui | Institute of Soil Fertilizer and Agricultural Water Saving, Xinjiang Academy of Agricultural Sciences, Urumchi, Xinjiang 830091, China | | WANG Xin-yong | Institute of Soil Fertilizer and Agricultural Water Saving, Xinjiang Academy of Agricultural Sciences, Urumchi, Xinjiang 830091, China |
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| Abstract: |
| In order to Study the effect of biomass carbon input on biological characteristics of maize cultivated in saline soil, different salinized soils were used to simulate different salt stress environments. The study materials were gray desert soil in three salinity levels: level 1, low salinity, level 2, medium salinity, and level 3 high salinity with different percentage of biomass carbon inputs. Corn was cultivated in these media and the physicochemical indexes were investigated before and after sowing to observe the germination of maize seeds and their biological characteristics after emergence. The results showed that the 1%, 2% and 4% biomass carbon inputs into level 1 and level 2 salinity soil could reduce the pH and total salt content of the soil. 8% biomass carbon input to salinity soil could induce the soil's pH and total salt content up to the highest. Biomass carbon inputs to salinity soil could boost the corn seeds germination and promote the seeds’ vigor, the increasing range was positively related to biomass carbon input ratio. When the level 1, level 2 and level 3 salinity soil had 2%, 2% and 4% biomass carbon inputs accordingly, the cultivated corns’ stem diameter and plant height had the biggest increase, the 8%, 2% and 8% biomass carbon inputs into the salinity soil accordingly could induce the biggest above and underground corns’ dry matter accumulation, increasing ratio which compared with CK were 115.9%, 151.2%, 648% and 117.5%, 91.7%. 241%. The biomass carbon inputs were related to the corns’ MDA content decrease and the increasing of CAT and SOD in the same time. The biomass carbon could be used as a kind of salinity soil improvement agent. |
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