等钼营养下不同施钼方式对烤烟生长、产量及品质的影响

摘要

Field experiments were carried out in Qiannan to study the effects of different fertilization meas-ures of molybdenum fertilizer on growth , yield and quality of flue-cured tobacco .The results showed that the yield and values were increased significantly ,nicotine accumulation of different parts were regulated ,the potas-sium content and aroma components were increased ,and the overall quality was improved by molybdenum .Un-der the condition of same molybdenum fertilizer diluent of 80 mL per plant ,the mode of watering at the trans-planting stage and spraying at the squaring stage ( B2) had the best effect;and the effect of the mode of spra-ying molybdenum fertilizer at the rosette stage and the squaring stage respectively ( B3) was the second .%为探讨烤烟钼素营养的高效施肥技术，采用大田试验，在贵州黔南9个县市研究了等钼营养条件下，不同钼肥施用方式对烤烟生长、化学成分、香气成分、经济性状及评吸质量的影响。结果表明，钼能显著提高烟叶产量和产值，调节不同部位烟碱积累，提高烟叶含钾量和多数香气成分含量，提高烟气的香气量和总体质量。在每株80 mL钼肥稀释液施用剂量下，以移栽时浇施和现蕾期叶面等量喷施相结合的施钼方式（ B2）效果最好；以团棵期和现蕾期分别叶面等量喷施的施钼方式（ B3）效果次之。