文献类型： 外文期刊
作者： Chen, Danyan 1 ; Chen, Jingnan 2 ; Zhang, Yongchun 3 ; Shen, Shanshan 4 ; Ai, Yuchun 3 ; Shao, Xiaohou 5 ;
作者机构： 1.Jinling Inst Technol, Coll Hort, Nanjing 211169, Jiangsu, Peoples R China
2.Fujian Vocat Coll Agr, Fuzhou 350000, Fujian, Peoples R China
3.Jiangsu Acad Agr Sci, Inst Agr Resources & Environm, Nanjing 210014, Jiangsu, Peoples R China
4.Nanjing Hydraul Res Inst, Res Ctr Rural Water Management, Nanjing 210029, Jiangsu, Peoples R China
5.Hohai Univ, Coll Water Conservancy & Hydropower Engn, Nanjing 210098, Jiangsu, Peoples R China
关键词： Evapotranspiration; Water-fertilizer coupling mechanism; Yield production function
期刊名称：FRESENIUS ENVIRONMENTAL BULLETIN （ 影响因子：0.489； 五年影响因子：0.479 ）
ISSN： 1018-4619
年卷期： 2019 年 28 卷 11A 期
页码：
收录情况： SCI
摘要： Nitrogen-water system is one of the main growth management for flue-cured tobacco. With unhealthy growth under unreasonable nitrogen application and irrigation, a suitable Nitrogen-water treatment availably promote tobacco growth, saving water and fertilizer. In this text, nitrogen treatments for flue-cured tobacco were designed at 4.0, 5.5 and 7.0 g per plant. Each N treatment coupled with irrigation treatments at root extending period (50%, 60%), vigorous growth period (70%, 80%, 90%), harvesting period (60%, 70%), of which above ratios were proportion of saturation moisture capacity. Tobacco biological yield, water evaporation were investigated. The results showed that irrigation system with 90%, 70% in last growing period, could obviously enhance tobacco leaves, while the root extending water was 50% or 60%. Water-nitrogen coupling production function was best fitted at full quadratic curve equation (R-2=0.669, P<0.001), which can be to same extend used to direct water and nitrogen system for flue-cured tobacco.
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