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常规施肥条件下重茬烤烟干物质积累及其产值分析

Shandong Agricultural Sciences(2011)

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Abstract
以烤烟品种龙江911为试材,研究了当地常规施肥条件下重茬烤烟根茎叶干物质积累及产值变化规律。结果表明:重茬烤烟根茎叶干物质积累量随生育期延后呈现出逐渐增加的变化趋势,于17周达到最高值,随着重茬年数的增加干物质积累量呈现出降低的变化趋势,3个重茬处理之间均存在显著差异;重茬栽培对下部叶干物质积累影响最小,上部叶最大;重茬栽培会显著降低烟叶产值,重茬年数越多降低越明显。综合分析认为,重茬栽培不宜超过5年。
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Key words
Production value,Continuous cropping,Dry matter accumulation,Tobacco
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