摘要
在前期钾肥用量试验的基础上，采用田间试验方法研究了钾肥施用量和施用期对烤烟产量和品质的影响．结果表明：两个施钾水平Ｇ１施Ｋ２Ｏ２７０ｋｇ／ｈｍ２，Ｇ２施Ｋ２Ｏ３３０ｋｇ／ｈｍ２）之间差异不显著．３个施钾时期（Ｄ１——烟苗移栽后３５ｄ内分３次施钾，Ｄ２——烟苗移栽后４５ｄ内分３次施钾，Ｄ３——烟苗移栽后６０ｄ内分４次施钾），以Ｄ３处理效果最佳．综合不同钾肥施用量与施用期对烤烟产量和品质的影响，以Ｇ１Ｄ３和Ｇ２Ｄ３处理效果最佳，不同地区由于土壤和气候条件的不同。
Effects of fertilization time and amount of potassium on yield and quality of flue cured tobacco were studied in field experiments.The results read as follows:The fertilizer effect of two potassium levels (K 2O 270 and 330 kg/hm 2) hasnt obvious difference and D 3 (60 days after transplanting) among three fertilization time is optimum.But integrated surveying the fertilizer amount and time,the fertilizer effect of G 1D 3 is supreme.Not only is it tobacco yield and the proportion of first class or medium class tobacco and the output value is supreme,but also the quality is the best.Because of the distinct soil conditions in various areas,there exist some differences of potassium effect among different treatments.
出处
《湖南农业大学学报（自然科学版）》
CAS
CSCD
1997年第2期132-136,共5页
Journal of Hunan Agricultural University(Natural Sciences)
基金
湖南省科委
湖南省烟草公司资助
关键词
烟草
钾肥
施肥
产量
品质
tobacco potassium fertilizers fertilizing yield / quality
