【摘要】 为给贵州烤烟水分的合理运筹提供支持,对比了高、中、低3种膜下滴灌量对烤烟生长和产质量的影响。结果表明:在干旱条件下,烟株的株高、茎围等农艺性状随着滴灌量增加而逐步提高,产质量等经济指标则随着滴灌量提高先增加后减小,但均显著高于对照处理,以中滴灌量(72m3/667m2)处理效果最好,产量和产值分别达到153.9kg/667m2和2 466.61元/667m2,分别较对照增加58.2%和89.7%,同时,滴灌处理能有效降低初烤烟叶的烟碱、总氮等含氮化合物含量,提高烟叶的钾含量和化学成分的协调性。更多还原

【Abstract】 The flue-cured tobacco field drip irrigation experiment under plastic mulch was carried out to demonstrate effects of three irrigation levels(adequate,moderate and deficit) on growth,yield and quality of flue-cured tobacco.The results showed that plant height and stem perimeter had a rising trend,meanwhile,yield and quality of flue-cured tobacco increased first and then decreased with increasing irrigation levels.Yield and product value of flue-cured tobacco with moderate irrigation level(72 m3/667 m2) were 153.9 kg/667 m2 and 2 466.6 Yuan/667m2,which were improved by 58.2% and 89.7% compared to control,respectively.Lower nicotine and total nitrogen,higher potassium and richer chemical components were found in flue-cured tobacco with drip irrigation under plastic mulch.更多还原