| 减氮条件下有机物料还田对麦田酶活性及其土壤碳氮含量的影响 |
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| 引用本文： | 李春喜,李斯斯,邵云,马守臣,刘晴,翁正鹏,李晓波.减氮条件下有机物料还田对麦田酶活性及其土壤碳氮含量的影响[J].作物杂志,2019,35(5):129-247. |
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| 作者姓名： | 李春喜 李斯斯 邵云 马守臣 刘晴 翁正鹏 李晓波 |
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| 作者单位： | 1 河南师范大学生命科学学院,453007,河南新乡2 河南理工大学测绘与国土信息工程学院,454000,河南焦作 |
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| 基金项目： | “十三五”国家重点研发计划重点专项(2016YFD0300203-3,2018YFD0300708-4) |
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| 摘 要： | 为了研究不同有机物料还田对麦田土壤酶活性与土壤养分的影响,通过田间试验比较单施氮肥（CK,施纯氮270kg/hm 2）、秸秆还田（J,较CK减氮20%）、秸秆还田+牛粪（JF,较CK减氮20%）、秸秆还田+菌渣（JZ,较CK减氮20%）4种不同培肥处理,对麦田0~60cm土层脲酶、蔗糖酶活性与土壤有机碳、全氮含量变化进行研究。结果表明,在小麦季0~20cm土层各处理在拔节期脲酶活性最大,20~40cm土层JF处理在拔节期和开花期脲酶活性最大;在0~20和20~40cm土层JF处理在拔节期蔗糖酶活性显著高于CK处理。除J处理外,其他处理在0~20cm土层拔节期有机碳含量最大,且有机碳含量均表现为JF处理最大,其次是JZ处理;在0~20cm土层各生育时期JF处理的全氮含量均最大,且显著高于CK处理。减氮条件下有机物料还田能有效提高土壤脲酶、蔗糖酶活性,有机碳和全氮含量,并且土壤脲酶活性、蔗糖酶活性与有机碳和全氮含量均呈极显著正相关关系。综上,在减施氮肥条件下有机物料还田可以提高土壤质量。
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| 关 键 词： | 麦田 有机物料 土壤养分 酶活性 |
| 收稿时间： | 2019-03-01 |
Effects of Organic Materials Returning on Enzyme Activities and Soil Carbon and Nitrogen Content in Wheat Field under Nitrogen-Reducing Conditions |
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| Li Chunxi,Li Sisi,Shao Yun,Ma Shouchen,Liu Qing,Weng Zhengpeng,Li Xiaobo.Effects of Organic Materials Returning on Enzyme Activities and Soil Carbon and Nitrogen Content in Wheat Field under Nitrogen-Reducing Conditions[J].Crops,2019,35(5):129-247. |
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| Authors: | Li Chunxi Li Sisi Shao Yun Ma Shouchen Liu Qing Weng Zhengpeng Li Xiaobo |
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| Institution: | 1 College of Life Sciences, Henan Normal University, Xinxiang 453007, Henan, China2 School of Surveying and Land Information Engineering, Henan Polytechnic University, Jiaozuo 454000, Henan, China |
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| Abstract: | Based on the field experiment, the effects of different organic materials returning on soil enzyme activities and soil nutrients in wheat were studied. Four models were designed: single application of nitrogen (CK, N 270kg/hm 2),straw returning (J, N 216kg/hm 2), straw and cow dung (JF, N 216kg/hm 2), straw and mushroom dregs (JZ, N 216kg/hm 2),0-60cm soil layer on wheat field urease, invertase activity and soil organic matter and total nitrogen content were studied. The results showed that the urease activity was the highest in the jointing stage at 0-20cm, and the urease activity was the highest in the jointing stage and flowering stage in the treatment of 20-40cm soil layer straw returning and mushroom dregs (JZ). In 0-20cm and 20-40cm soil layers, the invertase activity of straw and cow dung (JF) treatment was significantly higher than CK treatment at jointing stage. Except for J treatment, other treatments in the 0-20cm the organic matter content layer was the highest at jointing stage, and JF treatment was the highest, followed by JZ and J treatment, CK treatment was the lowest; the total nitrogen content of JF treatment was the highest in the 0-20cm soil layer, and it was significantly higher than CK. The return of organic materials to soil could effectively increase soil urease activity, invertase activity, the content of organic matter and total nitrogen. Soil urease, invertase activity and organic matter and total nitrogen content were significantly positively correlated. In summary, organic materials returning to the field under reduced nitrogen applications can improve soil quality. |
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| Keywords: | Wheat field Organic materials Soil nutrients Enzyme activity |
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