| 秸秆还田与生物炭施用对黄褐土团聚体稳定性及有机碳积累的影响 |
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| 引用本文： | 乔丹丹,吴名宇,张倩,韩燕来,张毅博,李培培,李慧.秸秆还田与生物炭施用对黄褐土团聚体稳定性及有机碳积累的影响[J].中国土壤与肥料,2018(3):92-99. |
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| 作者姓名： | 乔丹丹 吴名宇 张倩 韩燕来 张毅博 李培培 李慧 |
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| 作者单位： | 河南农业大学资源与环境学院;河南省粮食作物协同创新中心 |
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| 基金项目： | 河南省高等学校重点科研项目(17A210021)；河南省科技攻关计划项目(172102110057)；河南农业大学科研启动经费(30500593)。 |
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| 摘 要： | 探明生物炭、秸秆和化肥配施对黄褐土条件下土壤团聚体的影响,为降低黄淮海平原黄褐土生产障碍,建立合理培肥制度提供参考。本研究通过3年定位试验,设置了不同的施肥制度:对照为不施肥(CK)、施用化肥(NPK)、生物炭配施化肥(NPKB)、秸秆配施化肥(NPKS)、生物炭和秸秆配施化肥(NPKSB)5个处理。对不同处理条件下湿筛的土壤团聚体指标进行了分析。结果表明:施用有机物料后,能增加大粒级土壤团聚体含量,提升土壤团聚体稳定性,提高土壤有机质含量。稳定性的提升幅度次序为NPKSNPKSBNPKB。在试验期内,添加生物炭能逐年提升土壤有机碳含量,顺序为NPKSBNPKB。在所有施肥处理中,NPKSB对提升大粒级团聚体有机碳贡献率效果最好。在本研究设置处理中,NPKSB对提升土壤团聚体基本性能效果最好。
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| 关 键 词： | 生物炭 秸秆 黄褐土 土壤团聚体 土壤有机碳 |
Effect of boichar and straw with chemical fertilizers on soil aggregate distribution and organic carbon content in yellow cinnamon soil |
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| Abstract: | For increasing soil productivity and establishing the reasonable fertilization system on yellow cinnamon soil at Huang huaihai Plain,five treatments with biochar,straw and chemical fertilizers on 3 year(2014~2016)field experiment were conducted to detect characteristics of the wet sieving soil aggregates,including no fertilizer control(CK),chemical fertilizers as N,P,K(NPK),biochar adding and the chemical fertilizers(NPKB),straw returning and the chemical fertilizers(NPKS),biochar adding and straw returning with the chemical fertilizers(NPKSB).The results indicated that the fertilization treatments with organic materials(including biochar adding and straw returning)improved content of the soil aggregate in classification of bigger one(> 0.25 mm),and the stability ratio,and content of soil organic matter.Promotion of the stability ratio was ordered in extent as NPKS>NPKSB>NPKB.In the period of experiment,adding biochar gradually enhanced the content of soil organic matter annually with the order:NPKSB>NPKB,as well as NPKSB mostly advanced the contribution rate of organic matter in the soil organic matter with the classification of big one(> 0.25 mm).Therefore,in present study,the treatment of NPKSB performed the best on improving fundamental characteristic of the soil aggregates. |
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| Keywords: | biochar straw yellow cinnamon soil soil aggregate soil organic matter |
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