摘要
[目的]为烤烟施用硫酸钾镁肥和优质栽培技术的推广提供依据。[方法]采用田间小区试验,设4种钾肥处理,研究了硫酸钾镁肥对烤烟主要生物学、经济性状及产量、产值的影响。[结果]各处理烤烟生育期基本一致。施用复合肥处理的株高、茎粗、各部位叶片长宽和单叶重均优于硫酸钾和硫酸钾镁肥处理;施用硫酸钾镁肥处理的上等烟比例均优于施用硫酸钾和复合肥的处理。施用硫酸钾镁肥与硫酸钾相比,增产97.4-162.3 kg/hm^2,增产率4.4%-7.2%,差异显著。在4种钾肥处理中,施用硫酸钾镁肥1 643 kg/hm^2产值居第1位,为27 555.2元/hm^2,比对照增收3 750.0元/hm^2,增收15.7%,差异极显著。施用硫酸钾镁肥处理与对照相比,纯收入增加1 241.0-1 565.0元/hm^2,增收7.8%-9.9%。[结论]施用硫酸钾镁肥能改善烤烟生物学性状,具有显著的增产增收效果。
[Objective] The purpose of the study was to provide basis for popularizing fertilizer of potassium and magnesium sulfate and the high quality cultivation technique of flue-cured tobacco.[Method] The influences of the fertilizer of potassium and magnesium sulfate on the biological and economic traits,yield and yield value of flue-cured tobacco were studied in field plot experiment with 4 kinds of K fertilizer treatments.[Result] The growth periods of flue-cured tobacco in treatments were basically uniform.The plant height,stem thickness,leaf length and width on different parts and single leaf weight in the treatment applied with compound fertilizer all exceeded that in the treatment applied with the fertilizer of potassium sulfate and potassium and magnesium sulfate.All the first class rate of tobacco in the treatment applied with the fertilizer of potassium and magnesium sulfate exceeded that in the treatments applied with potassium sulfate and compound fertilizer.Compared with potassium sulfate,the fertilizer of potassium and magnesium sulfate increased yield by 97.4～162.3 kg/hm2,rising with 4.4%～7.2%（significant difference）.Among 4 kinds of K fertilizer treatments the yield value of flue-cured tobacco in the treatment applied with fertilizer of potassium and magnesium sulfate at 1 643 kg/hm2 took up the 1st position,being 27 555.2 yuan/hm2,increased 3 750.0 yuan/hm2 than that of CK,rising with 15.7%（extremely significant difference）.Compared with CK,the net income of the treatment applied with the fertilizer of potassium and magnesium sulfate increased 1 241.0～1 565.0 yuan/hm2,rising with 7.8%～9.9%.[Conclusion] Applying the fertilizer of potassium and magnesium sulfate can improve the biological characters of flue-cured tobacco and has significant effect on yield-and-income increasing for better economic benefit.
出处
《安徽农业科学》
CAS
北大核心
2007年第33期10742-10743,共2页
Journal of Anhui Agricultural Sciences
关键词
硫酸钾镁肥
烤烟
肥效
Fertilizer of potassium and magnesium sulfate
Fluecured tobacco
Fertilizer effect
