钾对高硼土壤烤烟生长及离子吸收的影响  

Influence of Potassium on Growth and Ion Uptake of Flue-cured Tobacco in High-boron Soil

作　　者：谭小兵[1] 杨焕文[1] 徐照丽[2] 林云红 熊茜 王戈[1] 白羽祥 吕世保[1] 程亚东 史普酉 TAN Xiaobing;YANG Huanwen;XU Zhaoli;LIN Yunhong;XIONG Qian;WANG Ge;BAI Yuxiang;LV Shibao;CHENG Yadong;SHI Puyou(College of Tobacco Science, Yunnan Agricultural University, Kunming 650201;Yunnan Academy of Tobacco Agricultural Sciences, Kunming 650021;Chuxiong Cigarette Factory of Hongta Tobacco （ Group）, Yunnan Chuxiong 675000, China)

机构地区：[1]云南农业大学烟草学院,昆明650201 [2]云南省烟草农业科学研究院,昆明650021 [3]红塔集团楚雄卷烟厂,云南楚雄675000

出　　处：《中国农业科技导报》2018年第6期113-121,共9页Journal of Agricultural Science and Technology

基　　金：中国烟草总公司云南省公司科技计划项目(2017YN07)资助

摘　　要：为探讨钾肥对高硼毒害的缓解效应,以烤烟品种K326为材料,通过大田试验研究了不同施钾量对高硼植烟土壤烤烟干物质量、经济效益及烟株内硼、氮、磷和钾含量的影响。结果表明:高硼土壤会显著增加烟株各部位硼含量,显著降低烟株内氮、磷、钾含量,干物质量以及经济效益;在高硼土壤下,施钾肥能够显著提高烟株干物质量和经济效益,抑制烟株对硼的吸收,促进氮、磷和钾的吸收。烟株内硼、氮、磷、钾之间存在显著的相互关系,其中钾与硼呈显著负相关,与氮、磷呈显著正相关。本试验条件下,高硼植烟土壤最佳施钾量为420 kg/hm^2。In order to investigate the alleviation effect of potassium fertilizer on high boron toxicity,this paper took K326,a flue-cured tobacco cultivar as material,and conducted a field experiment to investigate the effect of different amounts of potassium on the dry matter,economic benefit and content of boron（ B）,nitrogen（ N）,phosphorus（ P）and potassium（ K） of flue-cured tobacco in high-boron soil. The results showed that high-boron soil significantly increased B content in different parts of tobacco plant,and significantly reduced total N,total P,total K content,dry matter and economic benefit. Potassium significantly increased tobaocco＇s dry matter and economic benefit,inhibited the uptake of B and promoted the uptake of N,P,K under high-boron soil. Meanwhile,there was a certain correlation between B,N,P and K in the tobacco plant. K and B had a significant negative correlation and significant positive correlation between N,P and K. Under the experimental conditions,the optimum potassium application rates was 420 kg/hm^2 in high-boron soil.

关 键 词：高硼土壤 烤烟 钾 离子吸收 

分 类 号：S572[农业科学—烟草工业]