| 氮素水平对单作和间套作小麦玉米品质和产量的影响 |
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| 引用本文： | 何承刚,黄高宝,姜华.氮素水平对单作和间套作小麦玉米品质和产量的影响[J].干旱地区农业研究,2003,21(2):22-25. |
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| 作者姓名： | 何承刚 黄高宝 姜华 |
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| 作者单位： | 1. 云南农业大学烟草学院,云南,昆明,650201
2. 甘肃农业大学,甘肃,兰州,730070 |
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| 基金项目： | 国家自然科学基金项目(031049) |
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| 摘 要： | 以间套作小麦玉米、单作小麦和单作玉米为研究对象,通过田间试验研究了氮素水平对单作和间套作小麦玉米产量和品质的影响。获得的主要结果为:在0～450kg/hm~2施氮范围内,随着施氮水平的提高,间套作小麦产量一直呈上升趋势,但当施氮水平超过450kg/hm~2时,其品质指标却开始下降;而单作小麦施氮水平在0～450kg/hm~2范围内,其品质指标一直提高,当施氮水平超过450kg/hm~2时,产量则开始下降;单作玉米的产量和品质指标的变化和问套作小麦相同,而间套作玉米的产量和品质指标的变化和单作小麦一致。相关分析表明,单作和间套作小麦玉米的品质指标与其产量之间均呈弱正相关。
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| 关 键 词： | 氮素营养 小麦玉米间套作 单作小麦 单作玉米 产量 品质 |
| 文章编号： | 1000-7601(2003)02-0022-04 |
| 修稿时间： | 2002年10月15 |
Effect of nitrogen nutrition on quality and yield of wheat-maize intercropping and monocropping |
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| HE Cheng-gang,HUANG Gao-bao,Jiang hua.Effect of nitrogen nutrition on quality and yield of wheat-maize intercropping and monocropping[J].Agricultural Research in the Arid Areas,2003,21(2):22-25. |
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| Authors: | HE Cheng-gang HUANG Gao-bao Jiang hua |
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| Abstract: | The field experiment was designed to study effects of nitrogen application rates on yield and quality of wheat-maize intercropping and monocropping. The results indicated that wheat yield of intercropping increased with nitrogen application rate when nitrogen application rate was less than 450 kg/hm2, when nitrogen application rate was greater than 450 kg/hm2, wheat quality decreased. Under the monocropping condition, wheat quality increased when nitrogen application rate was less than 450 kg/hm2, when nitrogen application rate was larger than 450 kg/hm2, wheat yield decreased. The maize yield and quality under the monocropping condition, were the same as wheat under intercropping treatment; maize yield and quality, under the intercropping treatment were similar to wheat under monocropping. The regression analysis showed that the quality properties of both intercropped and sole wheat, maize were weakly correlated to their grain yield respectively. Under the condition of this experiment, the amount of 300 kg/hm2 nitrogen application could improved quality and yield simultaneously. |
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| Keywords: | nitrogen nutrition wheat-maize intercropping sole wheat sole maize yield quality property |
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