作　　者： ; ; ;

机构地区： 河南农业大学烟草学院

出　　处： 《中国烟草学报》 2010年第4期35-39,共5页

摘　　要： 采用田间小区试验研究了水钾互作对烤烟干物质积累的影响,以期为吉林省烤烟生产提出更好的栽培管理措施,指导烟叶生产实践。研究表明,在烤烟不同生育期,适当灌水量和钾肥配合可以提高烟叶的干物质积累量。在本试验条件下伸根期和成熟期保持土壤相对含水率在55%～65%之间,旺长期保持在75%～85%之间,施钾量保持在每公顷施K2O180kg是比较好的组合。在伸根期和旺长期,烤烟根、茎和叶干重的变异主要是由水分引起的;而成熟期,烤烟根、茎和叶干重的变异则主要是由钾肥引起的。在不同生育期合理地控制土壤水分和钾肥用量,将可提高烟叶的产质量。 Field trial was carried out to study effects of water-potassium interaction on dry matter accumulation in flue-cured tobacco（Nicotiana tabacum L.）in order to provide improved measures for flue-cured tobacco production in Jilin province.Results showed that appropriate irrigation and potassium application can significantly improve the accumulation of dry matters in tobacco in different growth and development stage.Good combination was to keep relative soil moisture content between 55%-65% at root spreading stage and maturing stage,75%-85% at vigorous growing stage,and maintain the amount of potassium at 180 kg·hm-2.Dry matter accumulation difference at root spreading stage and vigorous growing stage was mainly attributed to water supply,while at maturing stage the difference was mainly attributed to potassium supply.Therefore,appropriate soil moisture and potassium fertilizer in different growth and development stage can improve tobacco leaf productivity and quality.

关 键 词： 水钾互作 干物质积累 烤烟产质量

领　　域： [农业科学] [农业科学]