皖南烟区烤烟干物质和养分的积累研究
Tobacco Science & Technology(2004)
Abstract
对皖南烟区烤烟干物质和养分积累规律进行了研究,结果表明烟苗移栽后30d内烟株干物质积累较少,仅占总积累量的3%;移栽后31~75d,烟株干物质积累量达到总积累量的69%;移栽后75d至采收,干物质积累量占总积累量的28%.在烟株生长发育早期,干物质在叶后中分布比例较高,栽后75d趋于相对稳定,根、茎、叶的干物质重分别约占全株干重的14%、32%和54%.烟株移栽后30d至75d时氮、磷、钾、氯、镁、锰、锌、铜的积累量分别占总积累量的69.18%、56.66%、79.82%、58.54%、73.75%、48.03%、53.28%、71.06%.
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Key words
nutrient accumulation,dry matter,tobacco,flue-cured
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