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華北一年兩熟區(qū)免耕開溝種床對農(nóng)田作物生長的影響
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國家自然科學(xué)基金資助項目（51175499、51205398）和北京市自然科學(xué)基金資助項目（6112015）


Effects of No-till Opening Seedbed on Crop Growth in Annual Double Cropping Areas in Northern China
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    摘要:

    2008~2010年在北京市大興區(qū)研究了免耕開溝種床對土壤水分、作物生長、產(chǎn)量和水分利用效率的影響。試驗結(jié)果表明：免耕開溝種床能增強土壤蓄水保墑能力，與翻耕種床相比，0~30 cm土層土壤體積含水率提高0.2%~2.7%，促進了作物生長，其中免耕播種開溝深度為20 cm的種床優(yōu)勢最為明顯，相對翻耕種床可提高冬小麥產(chǎn)量2.4%和水分利用效率7.4%、夏玉米產(chǎn)量1.2%和水分利用效率1.5%。研究表明，華北一年兩熟區(qū)免耕播種的適宜開溝深度為20 cm。

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    The effect of no-till (NT) opening seedbed characteristics on soil moisture, crop growth, yield and water use efficiency (WUE) was studied in the field experiment at Daxing in Beijing in 2008～2010. The results indicated that no-till opening seedbeds could increase the capacity of water storage. Compared with traditional tillage seedbed, volumetric soil water content increased by 0.2%~2.7% in 0~30 cm soil layer and the crops growth were also promoted. The best results were achieved by the seedbed of NT with the opening depth of 20 cm. Compared with traditional tillage seedbed, NT with the opening depth of 20 cm increased winter wheat yield and WUE by 2.4% and 7.4%, and summer maize yield and WUE by 1.2% and 1.5%, respectively. The study showed that 20 cm could be the suitable opening depth for no-till seeding in northern China plain. 

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何進,王慶杰,李洪文,盧彩云,喬曉東,路戰(zhàn)遠.華北一年兩熟區(qū)免耕開溝種床對農(nóng)田作物生長的影響[J].農(nóng)業(yè)機械學(xué)報,2013,44(8):50-56,62. He Jin, Wang Qingjie, Li Hongwen, Lu Caiyun, Qiao Xiaodong, Lu Zhanyuan. Effects of No-till Opening Seedbed on Crop Growth in Annual Double Cropping Areas in Northern China[J]. Transactions of the Chinese Society for Agricultural Machinery,2013,44(8):50-56,62.

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  • 在線發(fā)布日期: 2013-07-19
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