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覆膜对甘薯生长发育和产量的影响
引用本文:李云,宋吉轩,石乔龙.覆膜对甘薯生长发育和产量的影响[J].南方农业学报,2012,43(8):1124-1128.
作者姓名:李云  宋吉轩  石乔龙
作者单位:贵州省生物技术研究所;贵州松桃县农业局
基金项目:贵阳市农业攻关项目(筑科农合同字2010第1-农-07号);贵州科技创新平台建设项目(黔科合院所创能2010-4006);国家现代农业技术体系“国家甘薯产业体系贵阳试验站”(CARS-11-C-24)
摘    要:【目的】探讨覆盖黑膜、白膜对甘薯生长发育和产量的影响,为生产提供指导。【方法】于2011年3~10月在贵州省清镇市站街镇杉树村朱兵责任田进行甘薯地膜覆盖栽培试验,试验设覆盖黑膜、透明膜和不覆膜(CK)3个处理,比较覆膜对甘薯生长发育和产量的影响。【结果】覆盖黑膜处理甘薯地上部和地下部比对照分别增产202%和79%,覆盖白膜处理甘薯地上部和地下部分别比对照增产185%和50%,黑膜比白膜处理甘薯地上部和地下部分别增产6%和19.6%。覆膜条件下甘薯各器官的干率变化不明显;不同覆膜方式及对照的T/R比值均下降,但覆膜的T/R仍较对照大;覆盖黑膜条件下,甘薯生长前期日鲜重增长速率均比其他两种处理方式快。【结论】覆膜处理甘薯叶片、叶柄、茎蔓、块根的鲜重均比不覆膜明显增加,尤其黑膜覆盖处理下,甘薯各项指标增加明显,黑膜处理下甘薯块根产量增产79%。覆盖栽培是一项投入少、效益高的技术措施,可在贵州省甘薯生产上推广应用。

关 键 词:甘薯  覆膜  发育动态  产量  影响

Effects of film mulching on growth, development, and yield of sweet potato
LI Yun,SONG Ji-xuan,SHI Qiao-long.Effects of film mulching on growth, development, and yield of sweet potato[J].Journal of Southern Agriculture,2012,43(8):1124-1128.
Authors:LI Yun  SONG Ji-xuan  SHI Qiao-long
Institution:1 Guizhou Institute of Biology, Guiyang 550006, China; 2 Songtao Agriculture Bureau, Songtao, Guizhou 554100, China)
Abstract:Objective]The present study was conducted to explore the effects of black and white film on the growth and development, and yield of sweet potato in order to provide guidance for practical production. Method]The experiment was carried out from March to October 2011 at Zhanjie Town, Qingzhen City of Guizhou Province. Three treatments (black film mulching, white film mulching, and control) were arranged in randomized block design with four replications to compare their effects on growth, development, and yield of sweet potato. Result]Compared with control, black film mulching treatment increased the yields of aboveground part and underground part of sweet potato by 202% and 79%, respectively, while white film mulching treatment increased the yields of aboveground part and underground part of sweet potato by 185% and 50%,,respectively. Black film mulching increased the yields of aboveground part and underground part by 6% and 19.6%, respectively compared to white film mulching treatment. Dry matter ratio did not change significantly under different film mulching conditions, the T/R ratio decreased whether the film was covered or not. The growth rate of fresh weight at early stage under black film mulching was higher than those of white film mulching and the control. Conclusion] Film mulching could obviously increase the fresh weight of leaves, petioles, stems, and tubers, especially black film mulching, which increased tuber yield by 79%. Film mulching is a technological measure with low investment and high benefits, which could be widely applied in sweet potato production.
Keywords:sweet potato  plastic film mulching  growth and development  yield  effects
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