中国烟草科学Issue(6)：69-76,8.DOI:10.3969/j.issn.1007-5119.2013.06.014
施钾量对烤烟钾积累与分配的影响
Influence of K Accumulation and Distribution of Flue-cured Tobacco under Various K Rates
摘要
Abstract
In order to provide a theoretical basis for rational fertilization, we studied the K accumulation and distribution characteristics of flue-cured tobacco yunyan85 in Liangshan prefecture, Sichuan province. Yunyan 85 was used in soil culture and field experiment. Yield, K content, K accumulation and K distribution rate of yunyan85 were analyzed. The results showed that the K accumulation peak of yunyan85 appeared at the later vigorous growth stage and the middle leaf maturity under different K application rates. The yield, K content, K accumulation and K distribution rate of tobacco leaf increase at the first, and then decrease with the increase of K application rate. The optimum K application rate was 157 kg/ha for yunyan85. In conclusion, for yunyan85, we should properly reduce the application rate of K and increase the dressing proportion of K in the late growth stage, which can improve the K content of tobacco leaf and ensure the yield in Liangshan.关键词
钾/施用量/烤烟/云烟85/积累/分配Key words
K/application rate/flue-cured tobacco/Yunyan85/accumulation/distribution分类
农业科技引用本文复制引用
李静,王勇,张锡洲,李廷轩,郑子成,戢林..施钾量对烤烟钾积累与分配的影响[J].中国烟草科学,2013,(6):69-76,8.基金项目
四川省烟草公司凉山州公司科技项目“植烟土壤钾素动态变化与烟草钾吸收分配规律研究” （）
