| Effect of different cultivation measures on activity and bound forms of organic carbon in Lou Soil |
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| DOI：10.7606/j.issn.1000-7601.2010.06.11 |
| Key Words: cultivation measure labile organic matter combined organic matter |
| Author Name | Affiliation | | WANG Caixia | Northwest A & F University, Yangling，Shaanxi 712100, China
Key Laboratory of Grop Genetics and Breeding，Hainan Academy of Agriculural Sciences，Haikou, Hainan 571100, China | | YUE Xijie | Northwest A & F University, Yangling，Shaanxi 712100, China | | GE Xizu | Northwest A & F University, Yangling，Shaanxi 712100, China | | WANG Xudong | Northwest A & F University, Yangling，Shaanxi 712100, China |
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| Abstract: |
| In order to study the effect of different cultivation measures on activity and bound forms of organic car-bon, a seven years’location experiment of different tllage modes (sub-soiling，rotary tllage, no-tillage and conventional
tillage)in the condition of wheat-corn rotation in Lou soil in Guanzhong plain was conducted. The content of total soil
organic carbon, highly labile organic carbon, mid-labile organic carbon, loosely combined organic carbon, stably com-
bined organic carbon and tightly combined organic carbon in different soil layers were analysed. The ratios of loosely to tightly combined organic carbon was also calculated. The results showed that compared to the conventional tillage, rotary tillage, sub-soiling and no-tllage all increased the content of soil organic carbon, loosely combined organic carbon, la-bile organic carbon and the ratios of loosely to tightly combined organic carbon in the condition of high wheat stubble mulching, no matter with com stubble mulching or without. The comparison between several cultivation measures indicat-ed that the effects of rotary tllage and sub-soiling were more significant than no-tillage. So we can draw the conclusion that rotary tllge and sub-soiling are the ideal tillge measures in Guanzhong plain. |
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