| 长期施肥和气候因素对东北黑土区玉米产量的影响 |
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| 引用本文： | 彭畅,高洪军,牛红红,岳玉兰,刘春光,李强,朱平.长期施肥和气候因素对东北黑土区玉米产量的影响[J].玉米科学,2008,16(4):179-183. |
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| 作者姓名： | 彭畅 高洪军 牛红红 岳玉兰 刘春光 李强 朱平 |
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| 作者单位： | 吉林省农业科学院农业环境与资源研究中心,长春,130033 |
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| 摘 要： | 本试验以公主岭国家黑土监测基地为平台,研究玉米连作条件下施肥及气候因素对产量的可持续性影响。试验共设有机肥和化肥N、P、K的不同组合共24个试验处理。结果表明,与不施有机肥相比,施用常量有机肥和高量有机肥(FYM1、FYM2)均可以显著提高玉米产量,产量分别达到7668kg/hm2和7925kg/hm2,FYM(无有机肥)处理为5718kg/hm2。有机肥配施化肥比单施化肥也有明显的增产作用,施用N肥165kg/hm2可以显著增加玉米产量,单施磷素、钾素及磷钾配施增产作用不明显,表明土壤中的磷钾营养水平没有限制作物产量。降雨量与产量的相关分析结果表明,磷、钾处理的产量与8月份的降雨量显著相关。
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| 关 键 词： | 玉米 施肥 产量 气候 |
| 收稿时间： | 2008/7/12 0:00:00 |
Long-term Effects of Fertilization and Weather on Corn Yields in a Clay Loam Soil in Northeast China |
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| PENG Chang;GAO Hong-jun;NIU Hong-hong;YUE Yu-lan;ZHU Ping;et al..Long-term Effects of Fertilization and Weather on Corn Yields in a Clay Loam Soil in Northeast China[J].Journal of Maize Sciences,2008,16(4):179-183. |
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| Authors: | PENG Chang;GAO Hong-jun;NIU Hong-hong;YUE Yu-lan;ZHU Ping; |
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| Abstract: | A long-term monoculture corn experiment was established at Gongzhuling, China, to study the sustainability of corn grain yield under the conventional management. Twenty-four treatments consisting of different compositions of chemical N, P, K, and farmyard manure (FYM) were included. Farmyard manure treatments produced more corn grain yields(7 668 kg/ha and 7 925 kg/ha in FYM1 and FYM2) compared to that of non-FYM treatment (5 718 kg/ha). The application of 165 kg N/ha increased grain yield significantly, but the addition of P, K or PK gave no significant response, suggesting that the soil supply of these nutrients did not limit corn yield. Corn grain yields increased and remained relatively constant with time in fertilized and FYM addition treatments and decreased in no-fertilizer addition treatment. Precipitation in August was proportional to corn grain yields only to P and K treatments. Adequate application of fertilizer and FYM can sustain monoculture corn production. |
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| Keywords: | Long-term Effects of Fertilization and Weather on Corn Yields in a Clay Loam Soil in Northeast China |
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