| 不同耕作和轮作方式下作物生育期内土壤酶活性的动态变化特征 |
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| 引用本文： | 姜桂英,黄绍敏,郭斗斗. 不同耕作和轮作方式下作物生育期内土壤酶活性的动态变化特征[J]. 河南农业大学学报, 2009, 43(3) |
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| 作者姓名： | 姜桂英 黄绍敏 郭斗斗 |
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| 作者单位： | 福建农林大学资源与环境学院,福建福州,350002;河南省农业科学院植物营养与资源环境研究所,河南郑州,450002 |
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| 基金项目： | 国家科技支撑计划，河南省重大公益型科研项目 |
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| 摘 要： | 采用大田试验研究了在秸秆还田的基础上免耕(5 cm)、旋耕(15 cm)、浅耕(22 cm)、深耕(32 cm)4种耕作方式以及在免耕基础上小麦-玉米、小麦-大豆、小麦-花生3种不同轮作方式对河南省褐潮土区作物主要生育时期土壤硝酸还原酶、脲酶、碱性磷酸酶、中性磷酸酶和酸性磷酸酶活性的动态变化特征.结果表明,作物主要生育时期内,不同耕作方式和轮作方式下的土壤酶活性变化趋势与作物的生长及需肥规律基本一致;不同耕作方式对土壤硝酸还原酶活性影响较大,免耕的酶活性最高;对土壤脲酶活性的影响在小麦生长前期不明显,在小麦灌浆期脲酶活性依次为:免耕>旋耕>浅耕>深耕:对磷酸酶活性影响不明显.不同作物对土壤酶活性影响不同,小麦-玉米的硝酸还原酶和脲酶活性较花生和大豆高,而3种磷酸酶在小麦-花生处理中更活跃.
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| 关 键 词： | 耕作方式 潮土 土壤酶 轮作方式 生育时期 |
Dynamic changes of soil enzyme activities during growth of corps under different tillage types and rotations |
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| JIANG Gui-ying,HUANG Shao-min,GUO Dou-dou. Dynamic changes of soil enzyme activities during growth of corps under different tillage types and rotations[J]. Journal of Henan Agricultural University, 2009, 43(3) |
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| Authors: | JIANG Gui-ying HUANG Shao-min GUO Dou-dou |
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| Affiliation: | 1.Fujian Agricultural and Forestry University;Fuzhou 350002;China;2.Plant Nutrition and Environmental Institute of Henan Academy of Agricultural Sciences;Zhengzhou 450002;China |
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| Abstract: | The dynamic changes of soil enzyme activities(soil nitrate reductase,urease,alkaline,neutral and acid phosphates phosphorus acid activity characteristics) during growth of corps in fluvo-aquic soil in Henan province were studied in field experiment by different tillage types(no-tillage(5 cm),rotary-tillage(15 cm),low-tillage(22 cm),deep-tillage(32 cm)),based on straws returned,as well as wheat-corn,wheat-soybean,wheat-peanut of three different rotations based on no-tillage.The results showed that the dynami... |
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| Keywords: | tillage types fluvo-aquic soil soil enzyme activities rotations growth of crop |
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