摘要
【目的】基于烟株打顶后钾素流失、叶片中钾素分配降低的现象,研究施用黄腐酸钾对烤烟生育后期钾素累积、吸收的调控作用,以改善烟株钾素营养,提高烟叶产质量。【方法】以烤烟品种K326为材料,采用大田试验,研究黄腐酸钾对打顶烤烟干物质累积量、钾素含量及其累积量和初烤烟叶产质量的影响。【结果】施用黄腐酸钾可以促进烟株生长和钾素吸收。与对照相比,塘施黄腐酸钾75、150、225 kg/hm^2烟株打顶时干物质累积量和钾素累积量分别提高9.7%、20.44%、16.44%和27.62%、38.12%、38.12%,初烤烟叶产量和产值分别提高3.93%、30.64%、1.14%和13.74%、57.64%、16.86%,烟碱含量和钾含量也有所提高。【结论】黄腐酸钾可以有效促进烟株对钾素的吸收,提高烟叶干物质累积量和钾素含量,改善烟叶品质,在烤烟生产中具有很好的推广价值。
【Objective】Based on the phenomenon of potassium loss and the decrease of potassium distribution in leaves after topping of tobacco plants,the regulation effect of fulvic acid potassium application on potassium accumulation and absorption in the late growth period of flue-cured tobacco was studied,so as to improve the potassium nutrition of tobacco plants and the quality of tobacco production.【Method】With the flue-cured tobacco variety "K326" as tested material,the effect of fulvic acid potassium on the dry matter accumulation,the potassium content and its accumulation,and the yield and quality of primary flue-cured tobacco leaves were studied by field experiment.【Result】The application of fulvic acid potassium could promote the growth of tobacco plants and the absorption of potassium.Compared with the control,when the application amounts of fulvic acid potassium were 75,150 and 225 kg/hm^2 during topping,the dry matter accumulation and potassium accumulation increased 9.7%,20.44%,16.44% and 27.62%,38.12%,38.12%,respectively,while the yield and output value of primary flue-cured tobacco increased 3.93%,30.64%,1.14% and 13.74%,57.64%,16.86%,respectively,and the nicotine content and potassium content also increased.【Conclusion】Fulvic acid potassium can effectively promote the absorption of potassium,increase the dry matter accumulation and potassium content of tobacco leaves,and improve the quality of tobacco leaves,which has a good promotion value in tobacco production.
作者
陈亚茹
陈增敏
赵正雄
林云红
熊茜
甘影秋
李丽华
CHEN Yaru;CHEN Zengmin;ZHAO Zhengxiong;LIN Yunhong;XIONG Qian;GAN Yingqiu;LI Lihua(College of Tobacco Science,Yunnan Agricultural University,Kunming 650201,China;Chuxiong Cigarette Factory of Hongta Tobacco(Group),Chuxiong 675000,China)
出处
《广东农业科学》
CAS
2020年第2期68-74,共7页
Guangdong Agricultural Sciences
基金
红塔烟草(集团)有限责任公司科技计划项目(201801961)。
关键词
黄腐酸钾
烤烟
干物质
钾素
fulvic acid potassium
flue-cured tobacco
dry matter
potassium
