氮肥对水田与旱地烤烟叶绿素动态、生长及产量的影响  

Effect of nitrogen on the dynamic state of chlorophyll, growth and yield of flue-cured tobacco in paddy soil and upland soil

作　　者：华水金[1] 杨宇虹[2] 赵菊英[2] 王光贤[2] 王学德[1] 

机构地区：[1]浙江大学农业与生物技术学院,杭州310029 [2]云南省烟草科学研究所,玉溪653100

出　　处：《土壤肥料》2005年第6期31-32,33-35,共5页Soils and Fertilizers

基　　金：中国烟草总公司云南省烟草公司项目(03A05)。

摘　　要：研究了氮源和施氮量对烤烟叶绿素动态、株高、叶面积系数、产量和产值的影响,发现:不管何种氮肥形态,烟叶内叶绿素含量均随施氮量的增加而增加;铵态氮对旱地烤烟的叶绿素含量的增加效果优于硝态氮。虽然硝态氮和铵态氮均能促进烟株株高和叶面积系数,但铵态氮的效果要比硝态氮的效果好;田烟和地烟的最高产量产生在铵态氮的最高处理180和150kg/hm2,就产值而言,地烟在两种氮源下均为75kg/hm2的氮量下的产值达到最高,但铵态氮处理的产值较硝态氮高0.34×104元/hm2;而田烟的最高产值却出现在高氮处理中。Effects of nitrogen sources and rates on the dynamic of chlorophyll, plant height, leaf area index, yield and cost of yield of flue-cured tobacco were studied.Results indicated that whatever the nitrogen source was, content of chlorophyll in tobacco leaf increased as the nitrogen rates increased. Increment of chlorophyll in tobacco with ammonium nitrogen application was better than that of nitrate nitrogen. Thaough plant height and leaf area index of tobacco could be increased by both nitrate and ammonium nitrogen, ammonium nitrogen application was better than that of nitrate nitrogen. Irrigated and dry land tobacco had the highest yield under ammonium nitrogen application with 180 and 150 kg/hm^2 treatment. And cost of dry land tobacco was highest under the 75 kg/hm^2 treatment with both of nitrate and ammonium nitrogen. Cost of yield under ammonium nitrogen treatment was more than that of nitrate nitrogen in dry land tobacco by 0.34 ×10^4 yuan/hm^2.

关 键 词：烤烟 氮源 施氮量 叶绿素 产量 

分 类 号：S572[农业科学—烟草工业]