摘要
为了探索甘薯高产栽培技术，以不覆膜作为对照，调查和分析了可降解膜、不降解膜和黑膜对甘薯地上部生长发育、地下部产量形成以及干率的影响。结果表明，覆膜能使甘薯地上部充分形成，延缓甘薯生长点过早的向地下部转移；覆膜后，甘薯单株结薯数增加了1．0～1．8个，鲜薯增产9．52％～13．19％，覆盖不降解膜比对照显著增产，覆盖不降解膜和黑膜比对照极显著增产，3种覆膜处理间鲜薯差异不显著。其中以覆盖不降解膜产量最高，达到了52494．30kg／hm2。地膜覆盖是甘薯增产增效有效的栽培措施，其增产效应主要是通过促进甘薯中前期地上部生长、提高薯块个数，增加薯块后期干物质积累速率来实现的。
In order to research the high-yield culture technology of sweetpotato,compared to no plastic mulching as CK, survey and analysis the influence in growth and delelopment of overground part, yield formation and drying rate under degradable mulching film, non-degradable mulching film and black film. The result showed that, plastic mulc- hing can boost the overground growth and delay the growing point transfering to underground part early. After plastic mulching,the tuber root number of single plant increase from 1 to 1.8 ,fresh yield increase from 9.52% to 13.19% compared with CK. Degradable mulching film can increase yield significantly, non-degradable mulching film and black film can increase yield high significantly. Using non-degradable mulching film had highest yield, which reach to 52 494.30kg/hm2. Plastic mulching is a effective cultivation measure to increase yield and improve benefit, which is mainly getting through boost overground growth, improve tuber root number, and increase the rate of dry matter accumulation in later stage.
出处
《作物杂志》
CAS
CSCD
北大核心
2013年第6期110-113,共4页
Crops
基金
国家甘薯产业技术体系综合试验站专项资金资助(CARS-11-C-22)
四川省"十二五"农作物育种攻关项目(2011NZ0098-4)
关键词
甘薯
地膜覆盖
产量
Sweetpotato
Plastic mulching
Yield
