| 旱地保护性耕作对土壤呼吸和夏玉米产量的影响 |
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| 引用本文： | 禄兴丽,Sikander Khan Tanveer.旱地保护性耕作对土壤呼吸和夏玉米产量的影响[J].安徽农业科学,2013,41(8):3352-3354. |
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| 作者姓名： | 禄兴丽 Sikander Khan Tanveer |
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| 作者单位： | 西北农林科技大学农学院,陕西杨凌,712100;西北农林科技大学农学院,陕西杨凌,712100 |
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| 基金项目： | 国家自然科学基金项目，西北农林科技大学基本科研业务费专项资金项目，国家科技支撑计划课题 |
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| 摘 要： | 目的]研究旱地保护性耕作对土壤呼吸和夏玉米(Zea mays L.)产量的影响,为西北旱作夏玉米田保护性耕作提供技术依据。方法]设置传统耕作(CK)、还田免耕(NTS)、还田深松(CTS)和还田旋耕(RTS)4个耕作方式。结果]夏玉米田CO2平均排放速率表现为RTS>CK>NTS>CTS,CTS处理能够较传统翻耕极显著地提高有效穗数和穗粒数(P<0.01)。与CK相比,CTS、NTS和RTS处理能提高产量24.44%、6.96%和9.17%,但差异未达到显著水平。结论]土壤深松与秸秆还田相结合是西北地区旱地夏玉米较适宜的耕作方式。
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| 关 键 词： | 夏玉米 旱地 保护性耕作 土壤呼吸 产量 |
Effects of Conservation Tillage on Soil Respiration and Summer Maize(Zea mays L.) Yield in the Arid Areas |
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| Institution: | LU Xing-li et al(College of Agronomy,Northwest A & F University,Yangling,Shaanxi 712100) |
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| Abstract: | Objective] The aim was to study the effects of conservation tillage on soil respiration and summer maize yield in the arid areas,to provide technology for summer maize field in the arid areas of Northwest.Method] The mouldboard plough(CK),zero tillage with residue(NTS),chisel plough with residue(CTS) and rotary tillage with residue(RTS) treatments were designed.Result] The results showed that CO2 emission rate was in the order: RTS>CK>NTS>CTS,CTS treatment significantly increased spike numbers and grains per spike(P<0.01).CTS,NTS and RTS increased yield by 24.44%,6.96% and 9.17% compared with CK,respectively.Conclusion] The chisel plough with residue(CTS) is more suitable plough method for autumn maize in the arid area of Northwest. |
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| Keywords: | Summer maize Arid areas Conservation tillage Soil respiration Yield |
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