摘要
采用随机区组小区试验研究了不同基追肥比例及施氮量对赣南紫色土旱地烤烟产质量的影响。结果表明,在施氮量为135 kg/hm2、基追肥比例为40%:60%(处理N135-4-6)和50%:50%(处理N135-5-5)条件下,烟株株高、茎围、有效叶、单叶重等农艺性状及烟叶产质量均优于基追肥比例为60%:40%(处理N135-6-4)。在施氮量为120 kg/hm2、基追肥比例为40%:60%(处理N120-4-6)下,烟株生长状况及烟叶产质量均较处理N135-4-6有所下降,但与处理N135-6-4并无显著差异。表明在赣南紫色土旱地烟区,适当提高氮肥的追施比例,有利于烟叶产量及质量的提高,但氮肥施用量不能低于135 kg/hm2。
Effects of different ratio between base and topdressing and N application rates on yield and quality of tobacco leaf were investigated by randomized block experiment in dry-land purple soil. Results showed that significant differences existed in plant height, stem diameter, effective leaf number, single leaf weight and yield and quality of tobacco leaf under N135-4-6 and N135-5-5 treatments compared with N135-6-4 treatment. Tobacco grew worse and yield and quality were lower in N120-4-6 treatment than in N135-4-6 treatment. There was no significant difference compared to N135-6-4 treatment. These results suggested that on hilly land of purple soil in southern Jiangxi Province, the appropriate rates of raising N topdressing can improve yield and quality of tobacco leaf, while the total amount of applied nitrogen should be kept under 135 kg/hm2.
出处
《中国烟草学报》
EI
CAS
CSCD
北大核心
2013年第2期72-76,共5页
Acta Tabacaria Sinica
基金
江西省烟草公司科技项目"赣南紫色土旱地烤烟平衡施肥技术研究"[项目编号:200901001]
关键词
紫色土
基追肥比例
氮肥施用量
烟叶产质量
purple soil
proportion of nitrogen basal and topdressing
amount of applied nitrogen
output and quality of tobacco leaf
