中国农业科技导报2018，Vol.20Issue(6)：113-121,9.DOI:10.13304/j.nykjdb.2017.0634
钾对高硼土壤烤烟生长及离子吸收的影响
Influence of Potassium on Growth and Ion Uptake of Flue-cured Tobacco in High-boron Soil
摘要
Abstract
In order to investigate the alleviation effect of potassium fertilizer on high boron toxicity, this paper took K326, a flue-cured tobacco cultivar as material, and conducted a field experiment to investigate the effect of different amounts of potassium on the dry matter, economic benefit and content of boron (B), nitrogen (N), phosphorus (P) and potassium (K) of flue-cured tobacco in high-boron soil. The results showed that high-boron soil significantly increased B content in different parts of tobacco plant, and significantly reduced total N, total P, total K content, dry matter and economic benefit. Potassium significantly increased tobaocco's dry matter and economic benefit, inhibited the uptake of B and promoted the uptake of N, P, K under high-boron soil. Meanwhile, there was a certain correlation between B, N, P and K in the tobacco plant. K and B had a significant negative correlation and significant positive correlation between N, P and K. Under the experimental conditions, the optimum potassium application rates was 420 kg/hm～2 in high-boron soil.关键词
高硼土壤/烤烟/钾/离子吸收Key words
high-boron soil/flue-cured tobacco/potassium/ion uptake分类
农业科技引用本文复制引用
谭小兵,史普酉,杨焕文,徐照丽,林云红,熊茜,王戈,白羽祥,吕世保,程亚东..钾对高硼土壤烤烟生长及离子吸收的影响[J].中国农业科技导报,2018,20(6):113-121,9.基金项目
中国烟草总公司云南省公司科技计划项目(2017YN07)资助. （2017YN07）
