钛土肥对烤烟早花的控制效果  

Control Effect of Titanium Fertilizer on Early Flowering Tobacco

作　　者：张永辉[1] 罗定棋[1] 何余勇[1] 谢强[1] 王李芳[1] 谢云波[1] 

机构地区：[1]四川省烟草公司泸州市公司,四川泸州646000

出　　处：《贵州农业科学》2014年第6期35-37,共3页Guizhou Agricultural Sciences

基　　金：四川省烟草公司泸州市公司资助项目"烤烟培育壮苗综合技术研究及推广应用"[川烟科(2013)6]

摘　　要：为探明钛土肥对烤烟早花的预防效果,进行了烟苗低温处理前后施用钛土肥试验。结果表明,烟株早花发生率以低温处理前、处理后各施用1次钛土肥的最低,仅21.43%,比对照低71.43个百分点,低温处理前施用钛土肥的早花发生率为42.86%,比低温处理后的64.29%低21.43个百分点;施用钛土肥后烟株黑胫病、赤星病和病毒病的发病率均低于对照,烟叶内在化学成分协调,产量、产值、均价、上等烟比例和上中等烟比例均是钛土肥喷施2次>低温处理前喷施1次>低温处理后喷施1次>CK。The effect of different titanium application time and frequency on early flowering occurrence of Yunyan 97 was studied and the disease resistance,chemical composition content and economic characters were measured at the same time to verify the preventive effect of titanium fertilizer on early flowering of tobacco varieties.The results showed that：1）The occurrence rate of early flowering of tobacco plants with low temperature treatment before and after applying titanium fertilizer once was 21.43% （the lowest）,71.43% lower than CK;2）The occurrence rate of early flowering of tobacco plants applying titanium fertilizer before low temperature treatment was 42.86%,21.43% lower than that applying titanium fertilizer after low temperature treatment;3）The disease rate of black shank,brown spot and virus disease of tobacco plants with applying titanium fertilizer was lower than CK;4）The chemical composition harmony, yield, output value, average price, proportion of the first-class tobacco and proportion of the first and second tobacco of the plants applying titanium twice was the highest,followed by applying titanium once before low temperature treatment,applying titanium once after low temperature treatment and CK.

关 键 词：钛土肥 烤烟 早花 化学成分 经济性状 

分 类 号：S572[农业科学—烟草工业]