Is a quick water-soluble nitrogen, nitrogen content above 21.0%.
是一种水溶性速效氮肥，氮含量在21.0%以上。
Statistical analysis were used to investigate the relationship between content of water soluble sugar, alkaloid, total nitrogen and taste quality of flue cured tobacco.
通过数理统计系统分析了烟叶中水溶性糖(包括还原糖和总糖)、烟碱、总氮含量与烤烟吃味品质的关系。
应用推荐