不同比例有机氮肥对云烟97烟叶氮素含量及生长的影响  

Effects of Different Proportions of Organic Nitrogen on NitrogenContent and Growth of Yunyan 97

作　　者：杨双剑[1,2] 许灵杰[1] 翟欣 董民[1] 杜相革[1] 

机构地区：[1]中国农业大学,北京100193 [2]毕节市烟草公司威宁县分公司,贵州威宁553100 [3]毕节市烟草公司,贵州毕节551700

出　　处：《贵州农业科学》2015年第7期101-104,109,共5页Guizhou Agricultural Sciences

基　　金：贵州省烟草专卖局科技项目"威宁烟区抗春旱移栽技术集成与应用"(201226)

摘　　要：为了给喀斯特地区种植云烟97提供技术参考,研究不同比例有机氮肥对其生长发育的影响。结果表明：在移栽后30d和45d,叶片氮素含量30%有机氮肥处理的比70%有机氮肥处理的显著性提高,涨幅分别为17.88%和19.18%,与对照（纯化肥）处理无明显差异;移栽后90d,30%有机氮肥处理的烟叶氮素含量降幅明显低于纯化肥处理;移栽后60-90d,30%有机氮肥处理烟株的鲜、干物质含量分别比纯化肥的处理增加10.78%和14.62%,差异达显著水平。结论：喀斯特地区种植云烟97,烟叶旺长时期从移栽后60d左右开始,移栽后60-90d是烟叶鲜、干物质积累的重要时期;增施30%的有机氮肥有利于提高烟叶生长前期的氮素含量,维持中、后期生长,整个生育期烟株生长发育表现良好。To provide the technical reference for planting Yunyan97 in karst region, the effects of different proportions organic nitrogen on growth and development of Yunyan97 were studied. Results： The nitrogen content in tobacco leaves of 30% organic nitrogen treatment was enhanced by 17. 88% and 19.18% respectively compared with 70% nitrogen treatment 30 d and 45 d after transplanted, while had no significant difference with the control （pure chemical fertilizer）; 90 d after transplanted, the nitrogen content in tobacco leaves of 30 % organic nitrogen treatment decreased significantly and was lower than the pure chemical fertilizer treatment; 60-90 d after transplanted, the fresh and dry weight of tobacco plants of 30% organic nitrogen treatment was significantly increased by 10. 78% and 14. 62% respectively in comparison with pure chemical fertilizer treatment. Conclusion： the vigorous growth period started 60 d after transplanted in karst region, 60-90 d after transplanted was the important period of accumulating fresh and dry matter; Increasing 30% organic nitrogen was beneficial for enhancing nitrogen content in early growth period and maintaining the middle term growth. The tobacco grew well in the whole growth period.

关 键 词：喀斯特地区 云烟97 氮素含量 鲜干重 

分 类 号：S572[农业科学—烟草工业]