节点文献
供Mg水平对烤烟累积N、K、Ca、Mg的影响
Effects of Mg supply on the accumulation of N, K, Ca, Mg in flue-cured tobacco
【摘要】 盆栽试验表明 :(1 )供 Mg促进烟株对 NO- 3-N的吸收和积累 ;(2 )供 Mg极显著提高烟叶中 Mg的含量 ,但也显著降低 K和 Ca的含量 ;(3 ) Mg与 K、Ca之间存在着拮抗作用 ;(4 )供 Mg提高烟叶的 K/(Ca+Mg)值 ,改善卷烟燃烧品质 .缺Mg,K/(Ca+Mg)比值较低 ,品质不良
【Abstract】 The experiment showed: (1) Mg expedited the absorption and accumulation of NO - 3-N in tobacco plants; (2) Mg supply remarkably increased the Mg content in tobacco leaves and sharply reduced K and Ca content;(3) Antagonistic action existed between Mg and P, Ca;(4) Supplying Mg enhanced K/(Ca+Mg) ratio in tobacco leaves and improved combustible quality of cigarettes. On the contrary, K/(Ca+Mg) ratio might be much lower and the quality be worse.
【基金】 国家自然科学基金 (3 9460 0 3 9)资助项目
- 【文献出处】 福建农林大学学报(自然科学版) ,Journal of Fujian Agricultural University(Natural Science) , 编辑部邮箱 ,2002年03期
- 【分类号】S572
- 【被引频次】47
- 【下载频次】153