| 施肥对植烟土壤有机碳组分及土壤呼吸的影响 |
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| 引用本文： | 秦燚鹤,李雪利,王静,卢剑,刘晓涵,张建鹿,叶协锋,姚鹏伟.施肥对植烟土壤有机碳组分及土壤呼吸的影响[J].土壤通报,2021,52(4):885-894. |
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| 作者姓名： | 秦燚鹤 李雪利 王静 卢剑 刘晓涵 张建鹿 叶协锋 姚鹏伟 |
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| 作者单位： | 1.河南农业大学烟草学院/国家烟草栽培生理生化研究基地/烟草行业烟草栽培重点实验室，河南 郑州 450002 |
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| 基金项目： | 烟草行业烟草栽培重点实验室项目（No.30800665）、河南省烟草公司项目（No.HYKJ201301）、重庆市烟草公司项目（No.NY20140401070010）资助 |
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| 摘 要： | 采用盆栽试验的方法，设不施肥、单施氮肥、氮磷钾肥配施、氮磷钾肥，分别增施腐熟秸秆、芝麻饼肥和生物炭6个施肥处理，通过测定烟株生长发育过程中土壤有机碳组分和土壤呼吸速率的动态变化，探讨了不同施肥措施对植烟土壤有机碳组分和呼吸速率的影响。2次盆栽试验分别于2017年和2018年进行。结果表明，与未施肥和单施化肥相比，添加有机物料处理土壤各有机碳组分含量以及土壤呼吸速率均有提高趋势；添加有机物料的3个处理中，2017年和2018年两次盆栽烟草移栽60 d后，增施生物炭处理土壤总有机碳（TOC）含量最高，但CO2累计排放量最低；増施秸秆处理CO2累计排放量最高。因此，可以认为与其他有机物料相比，增施生物炭有利于土壤TOC的固存，减少CO2的排放。
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| 关 键 词： | 有机肥 有机碳 土壤呼吸速率 烤烟 |
| 收稿时间： | 2020-03-23 |
Effects of Fertilization on Soil Organic Carbon Fractions and Respiration under Tobacco Cultivation |
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| Institution: | 1.Key Laboratory for Tobacco Cultivation of Tobacco Industry, National Tobacco Cultivation and Physiology and Biochemistry Research Centre, Tobacco Science College, Henan Agricultural University, Zhengzhou 450002, China2.China National Tobacco Corporation Staff Training College, Zhengzhou 450002, China3.Liangshan Tobacco Company Xichang City Company, Xichang 615000, China4.Luyi Branch of Zhoukou Tobacco Company, Luyi 477200, China |
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| Abstract: | In order to explore the effects of different fertilization treatments on soil organic carbon (SOC) fractions and respiration rate under tobacco cultivation, a pot experiment was conducted to study the dynamic changes of SOC fractions and soil respiration rate during the growth stages of tobacco plants under the treatments of no fertilization (CK), single application of nitrogen (N) fertilizer, combined application of N, phosphorus (P) and potassium (K) fertilizers, and application of decomposed straw, sesame cake fertilizer and biochar. Compared with CK and single application of chemical fertilizers, the contents of SOC fractions and soil respiration rate were increased after the application of organic materials. In the treatments of organic materials application, the content of total SOC was the highest, while the cumulative CO2 emission was the lowest after 60 days of transplanting in 2017 and 2018. The content of total SOC in the straw application treatment was second only to that in the biochar application treatment, and the cumulative emission of CO2 was the highest. The application of organic materials increased the content of SOC fractions, and fertilization treatment improved the soil respiration rate. Compared with the other organic materials application, biochar was beneficial to the retention of SOC and the reduction of CO2 emission. |
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