施氮量对津引品种KRK26生长发育及产量的影响  

Influence of Nitrogen Application Rate on Growth and Yield of Zimbabwe Flue-cured Tobacco Variety KRK26

作　　者：苏仕开 李映相 李发平[1] 张金华[1] 张儒和 钟波[1] 

机构地区：[1]云南省烟草公司保山市公司施甸县分公司,云南施甸678200

出　　处：《安徽农学通报》2010年第19期82-84,共3页Anhui Agricultural Science Bulletin

摘　　要：为寻求津引品种KRK26的最佳施氮量,在施甸烟区肥力中等的地块,设置3种施氮量,研究不同施氮量对津引品种KRK26生长发育及产量的影响。结果表明:随着施氮量的增加,烟株大田生育期延长,前期生长缓慢,长势弱,后期生长较快,株高、有效叶片数、最大叶长明显高于其他两个处理,烟叶产量也呈上升趋势,但上等烟、中上等烟比例减少,产值最低,在实际生产中不宜盲目增加施肥量。In order to seek the best Nitrogen application rate for Zimbabwe Flue-cured Tobacco Variety KRK26,the research field plot with medium fertility in Shidian region was chosen and 3 kinds of Nitrogen application rate were set up to study the effect of different soil Nitrogen level on the growth and leaf yield of Zimbabwe Flue-cured Tobacco Variety KRK26.The results showed that：with the increase of Nitrogen application rate,the tobacco plant growth period tended to prolong,the growth rate was slowly and the growth vigor of tobacco plants was getting worse at prophase,but the growth rate was getting faster and the growth vigor of tobacco plants was getting better at anaphase,and the plant height,leaves,maximum leaf length were higher than the other two treatments,and tobacco yield also showed raising trend,but its output value,the proportion of high and high-middle class leaves were reduced,we couldn＇t blindly increase fertilizer at the actual production.

关 键 词：施氮量 生长发育 产量 产值 

分 类 号：S143.1[农业科学—肥料学]