不同腐植酸施用量对烤烟生长发育及品质的影响

摘要

In order to improve the nutrition of tobacco plant and the quality of flue-cured tobacco by using humic acid, the effects of different dosages of humic acid on growth of tobacco plant and quality of flue -cured tobacco were researched. The results showed that within a certain range, with increasing dosage of humic acid, the growth process of tobacco plant was accelerated, the agronomic characteristics and economic characteristics of tobacco were continually improved, the chemical components of tobacco tended to harmony, and the sensory quality of flue-cured tobacco was improved, but when the dosage of humic acid exceeded the range, the effects of humic acid decreased, or even had negative effect.%为利用腐植酸改善烟株营养、提高烤烟品质,对不同腐植酸施用量对烤烟生长发育及品质的影响进行了研究.结果表明:在一定范围内,随腐植酸施用量的增加,烤烟生长发育进程加快,农艺性状、经济性状不断提高,化学成分趋于协调,感官质量持续改善,但其施用量超过一定范围,作用降低,甚至会出现负效应.