不同施镁量对烤烟K326生长和产质量的影响
作者：吕世保 王戈 白羽祥 韦俊 张金峰 谭小兵
来源：《安徽农业科学》2017年第26期
摘要[目的]探索姚安县优质烟叶生产最佳镁肥施用量。[方法]研究镁的不同施用量对烤烟生长发育及产质量的影响。试验设置镁肥4个不同施用量：不施镁肥（T1）和施用150 kg/hm2（T2）、300 kg/hm2（T3）、450 kg/hm2（T4），并对各处理烤烟生长发育及农艺性状进行比较分析。[结果]与不施镁肥处理相比，随施镁量的增加，株高、叶长、叶宽和茎围随之增加；在0～450 kg/hm2施镁范围内，施镁对烤烟具有显著的增产、增值的效应，其中烤烟的产量和产值均以450 kg/hm2处理最高，其与T1、T2、T3处理间的差异达到极显著水平；烟叶化学成分含量以450 kg/hm2处理最接近优质烟叶的含量范围且其各成分协调性也最好。[结论]烤烟生产过程中，可施用适量的镁肥，以提高烤烟的产质量。
关键词烤烟；镁；农艺性状；产量；化学成分
中图分类号S572文献标识码
A文章编号0517-6611（2017）26-0041-03
Effects of Magnesium on Growth and Yield and Quality of Fluecured Tobacco K326
L Shibao ，WANG Ge* ，BAI Yuxiang et al
（Yunnan Agricultural University，Kunming，Yunnan 650201）
Abstract[Objective]To explore optimum dosage of magnesium fertilizer for quality tobacco production in Yaoan County.[Method]The experiment was studied on the influence of tobacco growth and the quality in different concentrations of magnesium fertilizer.This test set four treatments of magnesium fertilizer dosage：0 kg/hm2（T1），150 kg/hm2（T2），300 kg/hm2（T3），450 kg/hm2（T4），growth and agronomic traits of fluecured tobacco was analyzed.[Result]Compared with control，the plant height，leaf length，leaf width and stem girth increased with magnesium fertilizer dosage increasing.In the dosage range of 0 kg/hm2to 450 kg/hm2，the magnesium fertilizer treatment can significantly increase production and output value of fluecured tobacco.Production and output value of fluecured tobacco were of the highest at the 450 kg/hm2 of treatment ，the differences among 450 kg/hm2 of treatment and T1，T2 and T3 was extremely significant.The content of chemical components of tobacco leaf which applying 450 kg/hm2 magnesium fertilizer was mostly closed to the range of quality tobacco leaf，and it had the best coordination of components.[Conclusion]In the processing of planting fluecured tobacco，applying situation magnesium fertilizer can improve yield and quality.
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