安徽农业科学2011，Vol.39Issue(3)：1452-1454,1529,4.
泸州市土壤氮钾供应水平与烟草氮钾吸收利用规律研究
N, K Supplying Level of Soil in Luzhou and Their Absorption and Utilization Regulation by Tobacco
摘要
Abstract
[ Objective ] The research aimed to study N, K supplying level of tobacco soil and their absorption and utilization regulation by tobacco in south of Sichuan Province. [ Method ] N, K content and change levels of Luzhou tobacco soil, biomass growth rate at different growth stages of tobacco, N,K absorbing quantity and N,K ration were studied. [ Result ] The supplying and absorption of N in tobacco soil were low,but the K content and K,N ratio were high. About 15 days after transplant, N,K content were very high in soil, but run off in mid and last stage. So roaring period of tobacco postponed, and N,K supplying and absorption content were uncoordinated. [ Conclusion ] N, K supplying content should be decreased in early period, but N,K supplying content in 45 - 75 days after transplant should be increased and theirs supplying content after 75 days should be adjusted.关键词
泸州市/烟草/氮钾/吸收利用规律Key words
Luzhou City/ Tobacco/ Nitrogen and potassium/ Absorption and utilization regulation分类
农业科技引用本文复制引用
王明富,余祥文,夏先全,罗定棋,李霞,张永辉,雷晓,谢强,吴斌,陈尚洪,张建慧..泸州市土壤氮钾供应水平与烟草氮钾吸收利用规律研究[J].安徽农业科学,2011,39(3):1452-1454,1529,4.基金项目
四川省烟草专卖局攻关项目[川烟科(2009)2号]. （2009）
