摘要
１９９３～１９９７年在云南不同自然条件下进行不同比例的硝态氮、铵态氮试验．试验分５个处理：ＮＯ３Ｎ１００％，ＮＯ３Ｎ７５％＋ＮＨ４＋Ｎ２５％，ＮＯ３Ｎ５０％＋ＮＨ４＋Ｎ５０％，ＮＯ３Ｎ２５％＋ＮＨ４＋Ｎ７５％，ＮＨ４＋Ｎ１００％．试验结果表明ＮＯ３５０％＋ＮＨ４＋Ｎ５０％的配比适合云南的气候和土壤．此配比的烟叶香气质、香气量、烟叶含钾量均显著优于其它配比．本试验系统研究了Ｋ＋，ＮＨ４＋，ＮＯ３在土壤中的迁移与根系吸收和在叶片中变化积累的相关规律，揭示了ＮＯ３Ｎ５０％＋ＮＨ４＋Ｎ５０％烟叶香气味最好和含钾量高的主要原因．
A field trial was conducted from 19931997,which was to study that the effect of different ratio of NO3N and NH4+N on the quality of fluecured tobacco under different climate area and included the treatments as 100% NO3N,75%NO3-N and 25% NH4+N. 50% NO3N and 50% NH4+N,25% NO3-N and 75% NH4+N,100% NH4+N.The results showed that the treatment of 50% NO3-N and 50% NH4+N produced the high quality tobacco leaves in Yunnan,which was with better aromo quality,higher aromo and potassium content than other treatments.The relationship between the movement of K+,NH4+ and NO3 in soil and their absorb by root,the accumulation in leaves,and why the treatment of 50% and 50% produced higher quality tobacco leaves were studied.
出处
《云南农业大学学报》
CAS
CSCD
1999年第2期141-147,共7页
Journal of Yunnan Agricultural University
关键词
氮素形态
烤烟
品质
含钾量
Fluecured tobacco
Nitrogen forms
Quality
Potassium content.
