摘要
本研究在盆栽条件下，采用电超滤（ＥＵＦ）方法进行。结果表明：适量施用钾肥可以显著提高黄棕壤烤烟产量、协调烟叶中化学成分，改善烟叶品质。不施钾，黄棕壤植烟后，土壤ＥＵＦ－Ｋ值均有下降，以ＥＵＦ－Ｋ０～１０和ＥＵＦ－Ｋ１０～３０下降比较明显。适量施钾水平种烟后除ＥＵＦ－Ｋ３０～３５增加明显外，土壤钾各形态量变化不大，钾肥的后效应不明显。
The studies were carried out in pot experiment by means of electroultrafiltration (EUF).The results showed medium rate of K application significantly increased yield of cured leaf and coordinated chemical compositions of cured leaf,improving quality of flue-cured tobacco.All values of EUF-K were decreased after planting tobacco on yellow brown earth without K fertilizer,especially for EUF-K 0～10 and EUF-K 10～30 .Under medium rate of K application,there was little change on values of several forms of soil potassium after planting tobacco,except for EUF-K 30～35 . The obvious delayed effect of K fertilizer was not found.The values of several forms of soil potassium increased obviously with higher rate of K application.
出处
《安徽农业大学学报》
CAS
CSCD
1996年第4期466-469,共4页
Journal of Anhui Agricultural University
关键词
黄棕壤
土壤钾
烤烟
钾
施肥
Yellow brown soil Soil potassium Flue-cured tobacco EUF
