摘要
为缓解钾肥紧缺问题,并为枸溶性钾肥在农业生产上的开发应用提供依据,通过盆栽试验研究枸溶性钾肥与水溶性钾肥(烟草专用硫酸钾)不同比例配施对烤烟农艺性状、干物质积累、叶绿素含量、根系结构及根系活力的影响。结果表明:枸溶性钾肥与水溶性钾肥配施能促进烤烟生长,不同配施比例的效果不同。以75%枸溶性钾肥+25%水溶性钾肥(枸溶性钾肥)配施处理效果最优,能显著增加烤烟的生物量和叶绿素含量,提高烤烟根系活力。枸溶性钾肥可部分替代水溶性钾肥。
In order to alleviate the shortage of potassium that flue-cured tobaccos production faced,provide the basis for the development and application of citrate soluble potash fertilizer in agricultural production,through pot experiment to study the effects of the combined application of citrate soluble potassium and water soluble potassium under different combined rates on agronomic traits,dry matter accumulation,chlorophyll content,root structure and root activity of flue-cured tobacco.The results showed that the combined application of citrate soluble potassium and water soluble potassium could promote the growth of flue-cured tobacco and different combined rates had different promotive effect.The combined application which applying 75% citrate soluble potassium ＋ 25% water soluble potassium（citrate soluble potash fertilizer）had the best effect and could significantly increase biomass and the content of chlorophyll,improve the root activity.The citrate soluble potash fertilizer could replace the special potassium sulfate of tobacco partly.
出处
《贵州农业科学》
CAS
2016年第5期68-71,共4页
Guizhou Agricultural Sciences
基金
黔西南州烟草公司应用推广项目"新型缓释钾肥开发与烟叶增钾提质技术的集成推广"(2015-6)
关键词
烤烟
枸溶性钾肥
水溶性钾肥
配方施肥
叶绿素
根系活力
flue-cured tobacco
citrate soluble potassium
water soluble potassium
prescription ferti lization
chlorophyll
root activity
