| 郑险峰,周建斌,王春阳,拓秀丽,高亚军,李生秀.覆盖措施对夏玉米生长和养分吸收的影响[J].干旱地区农业研究,2009,27(2):80~83 |
| 覆盖措施对夏玉米生长和养分吸收的影响 |
| Effects of different mulchi ng methods on the growth and nutrients absorption of maize |
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| DOI：10.7606/j.issn.1000-7601.2009.02.14 |
| 中文关键词: 玉米 干物质累积 覆盖措施 |
| 英文关键词:maize dry matter accumulation mulching pattern |
| 基金项目:国家“863”高技术发展研究计划(2006AA100202)； 西北农林科技大学博士科研启动经费； 西北农林科技大学拔尖人才支持计划(2006) |
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| 中文摘要: |
| 田间试验地表覆膜和覆草对夏玉米生长、物质分配和养分吸收利用的影响。结果表明:在夏玉米全生育期降雨量大(但玉米生育初期降雨量相对小)的年份,采用秸秆覆盖、地膜覆盖措施能提高夏玉米各时期干物质累积量,具有显著的增产效果,氮肥利用率明显提高。氮携出量比常规对照增加,但叶片氮素残留量较大,覆盖措施对夏玉米干物质的分配和收获指数无显著影响。 |
| 英文摘要: |
| Field experiment was used to investigate the effects of plastic film mulching and straw mulching on the growth, dry matter distribution and nutrient uptakes of maize.In the test year, there was plenty of rainfall during the maize growth period but only a little at the early stage.Biomass and yield of maize were improved due to straw mulching or plastic film mulching.Maize NUE was improved as well.The nitrogen uptake of maize with mulching treatments was higher than that without mulching (CK) , while nitrogen remaining in the leaves was also higher, compared to no mulching.Mulching had no effect on the distribution of dry matter and harvest index of maize. |
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