IRRIGATION AND FERTILIZER COUPLING SYSTEM FOR FLUE-CURED TOBACCO

文献类型： 外文期刊

第一作者： Chen, Danyan

作者： Chen, Danyan;Chen, Jingnan;Zhang, Yongchun;Ai, Yuchun;Shen, Shanshan;Shao, Xiaohou

作者机构：

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.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序