施氮量对香料烟干物质积累及氮利用率的影响
刘建军;符云鹏;王小翠;肖石柱;胡建新;詹军
【期刊名称】《中国土壤与肥料》 【年(卷),期】2011(000)006
【摘要】The effect of amount nitrogen-fertilizer applied on accumulation of dry matter, intensity of accumulation, root shoot ratio, yield, economic characters and nitrogen use efficiency inoriental tobacco was studied. The results indicated that the accumulation of dry matter of organs and dry weight of the whole plant was increased with the quantity of inorganic nitrogen fertilizer being added; Intensity of accumulation were raised first and then dropped down. The distributions of dry matter of organs were crepancy through the growing season; Yield and economic characters was increased; Production rate was 80.43% ~ 140. 23% , value rate was 66. 90% -116. 20% ; The nitrogen harvest index was increased; The agronomic nitrogen use efficiency, apparent nitrogen recovery efficient, physiological nitrogen use efficiency were raised first and then dropped down; The partial factor productivity for applied nitrogen and soil nitrogen dependent rate were decreased significantly.%以香料烟品种云香巴斯马一号为材料,研究了不同氮肥用量对香料烟干物质积累量、积累强度、产量、产值及氮素利用率的影响.结果表明:随施氮量的增加,香料烟各器官中干物质积累量呈增加的趋势；干物质积累强度均表现为先上升后下降的趋势；各器
施氮量对香料烟干物质积累及氮利用率的影响
