| 程俊珊.渭源地区旱地玉米覆膜种植增温效应及高产增效研究初报[J].干旱地区农业研究,2006,(1):39~42 |
| 渭源地区旱地玉米覆膜种植增温效应及高产增效研究初报 |
| Effects of film mulch on ground temperature and production of corn on dryland in Weiyuan County |
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| DOI：10.7606/j.issn.1000-7601.2006.01.09 |
| 中文关键词: 旱地玉米 覆膜种植 增温效应 经济效益 |
| 英文关键词:dryland corn film mulch planting effect of raising temperature economic benefits |
| 基金项目: |
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| 中文摘要: |
| 于2003~2004年开展玉米全生育期地膜覆盖观测地温及物候期试验,研究渭源地区旱地玉米覆膜种植的增温效应和增产效益。结果表明:覆膜比裸地种植有明显的增温、改变经济性状、提高玉米产量等效益。分析认为温度是该地区的首要制约因素,覆膜是增温的主要措施。覆膜玉米比裸地种植能提高0~5 cm地温2.4~3.6℃/d,玉米产量增产3 300~3 650 kg/hm2,增产率为66.7%~89.0%。 |
| 英文摘要: |
| The experiment was carried out to study the effect of film mulch during the whole growth period of corn on the ground temperature and the production on dryland in Weiyuan County.It was shown that the application of plastic film could raise the ground temperature,adjust the economic characters,and increase the yield of corn obviously.By analyzing,it was concluded that temperature was the key factor influencing the growth of corn in this area,and the application of plastic film was the main measure to raise temperature.Compared with the control(bare land),the application of plastic film could raise the 0~5 cm ground temperature by 2.4~3.6℃/d and the yield of corn by 3 300.1~3 650.2 kg/km2, and the increasing rate of production was 66.7%~89.0%. |
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