中国农业科技导报2017，Vol.19Issue(11)：108-116,9.DOI:10.13304/j.nykjdb.2017.0163
植烟土壤碱解氮、速效钾含量及其交互作用对烤烟钾含量的影响
Effect of Available Nitrogen and Available Potassium Concentration, and Their Interaction on the Potassium Content in Flue-cured Tobacco Leaves
摘要
Abstract
Taking Luopin tobacco-growing area in Qujing city as basis,this paper analyzed the effect of soil available nitrogen,available potassium and their interaction on the potassium content in flue-cured tobacco leaves.The results indicated that:① the soil available nitrogen content in Luopin tobacco-growing area was higher,and 56.13％ of the soil sample were at a high level(＞ 150 mg/kg).Soil available potassium content was rich,but the coefficient of variation was larger (49.22％).The potassium content in flue-cured tobacco leaves was appropriate,and about 77.61％ tobacco samples reached the potassium levels of Brazil high quality flue-cured tobacco.② Along with the increasing of soil available nitrogen content,the potassium content in flue-cured tobacco leaves increased first and then decreased.The potassium content(y) in flue-cured tobacco leaves was positively correlated (P＜0.05) with soil available potassium content(x).And the regression equation,y=0.000 4 x+1.885,reaching a significant difference.③The variance analysis results showed that the effect of interaction between N and K on the potassium content in flue-cured tobacco leaves reached extreme significant difference at P＜0.01 level.When the soil basic fertility was at low nitrogen and medium nitrogen level,the potassium content in flue-cured tobacco leaves was positively correlated with soil potassium level.When the soil basic fertility was at high nitrogen level,the correlation were negative.Among 9 soil nitrogen and potassium interaction groups,medium nitrogen and high potassium(N2K3) group could produce flue-cured tobacco leaves with the highest potassium content.关键词
烤烟/罗平烟区/碱解氮/速效钾/钾含量Key words
flue-cured tobacco/Luopin tobacco-growing area/available nitrogen/available potassium/potassium content分类
农业科技引用本文复制引用
王亚虹,卢秀萍,许自成,解燕,高森,王林,陈征,穆童..植烟土壤碱解氮、速效钾含量及其交互作用对烤烟钾含量的影响[J].中国农业科技导报,2017,19(11):108-116,9.基金项目
中国烟草总公司清香型重大专项(Ts-03-20110020) （Ts-03-20110020）
中国烟草总公司云南省公司科技攻关重点项目(2011YN03)资助. （2011YN03）
