摘要
1988—1989年采用^(15)N示踪法通过盆栽试验,研究了不同施氮水平对烟草的氯素来源,吸收量、氮肥利用率以及对不同氮肥水平下的土壤固氮量,土壤A_N值的影响。探讨了烟草氮素营养的一些规律,为烟草生产制订合理的施肥量提供参考。
A pot cultural experiment was conducted in 1988 and 1989. Using ^(15)N as a fracer with different rates fertilizer nitrogen in flue-cured tobacco,the authors examined the source of nitrogen, the content of absorbing, the utilization rate of nitrogen fertilizer and the influence to the fixed content and An Value of soil;they also discussed some rules of nitrogen nutrition in flue-cured tobacco, offering reference for applying fertilizer appropriately.
出处
《河南农业大学学报》
CAS
CSCD
1992年第3期224-227,共4页
Journal of Henan Agricultural University
关键词
氮素
利用率
示踪法
烟草
utilization rate of nitrogen
tracer method
substraction method
An Value
flue-cured tobacco
