Nitrogen loss on tile-drained Mollisols as affected by nitrogen application rate under continuous corn and corn-soybean rotation systems
Nitrogen loss on tile-drained Mollisols as affected by nitrogen application rate under continuous corn and corn-soybean rotation systems
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玉米和玉米-大豆连续轮作系统下瓷砖排水软土的氮损失受施氮量的影响
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
ZhouX.
中科院分区：
文献类型：
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作者：
ZhouX.
赫尔默斯，M.J.，周晓霞，贝克，J.L.，梅尔文，S.W.和莱姆克，D.W.2012。连续玉米和玉米-大豆轮作制度下施氮量对瓦片排水软土氮素损失的影响能。J.土壤科学。92：493-499。在整个美国中西部，生产农业系统通过地下排水网络造成的硝酸盐氮(NO3-N)损失是当地和区域关注的问题。由于对粮食和能源的需求不断增加，玉米种植面积的增加以及用连续种植玉米取代玉米-大豆轮作制度的做法，引发了人们对这种种植制度转变的环境影响的质疑。通过4年(1990年~1993年)的研究，探讨了中北部玉米和玉米-大豆连作系统中不同施氮量(大豆追施0~168kgN ha−1和玉米追施0~224kgN ha−1)对土壤中硝态氮浓度、硝态氮损失和作物产量的影响。
Helmers, M. J., Zhou, X., Baker, J. L., Melvin, S. W. and Lemke, D. W. 2012. Nitrogen loss on tile-drained Mollisols as affected by nitrogen application rate under continuous corn and corn-soybean rotation systems. Can. J. Soil Sci. 92: 493–499. Nitrate-nitrogen (NO3-N) loss from production agricultural systems through subsurface drainage networks is of local and regional concern throughout the Midwestern United States. The increased corn acreage and the practice of growing continuous corn instead of a corn-soybean rotation system due to the increasing demand for food and energy have raised questions about the environmental impacts of this shift in cropping systems. The objective of this 4-yr (1990–1993) study was to evaluate the effect of nitrogen (N) application rate (0–168 kg N ha−1 for corn following soybean and 0–224 kg N ha−1 for corn following corn) on NO3-N concentration, NO3-N losses, and crop yields in continuous corn and corn-soybean production systems on tile-drained Mollisols in north central...