有机无机肥配比对烤烟农艺性状、产质量的影响

Effects of different proportions of organic and inorganic fertilizers on yield and quality of tobacco

为得出适用于长沙生态有机烟叶开发的较佳肥源,找出有机无机肥最佳配比和最优组合模式,研究了无机有机肥配比对烤烟产质量的影响。结果表明,有机肥可以改善烟叶质量,提高烟株株高、有效叶数、最大叶面积、单叶重,增加烟叶的总糖含量和钾含量,降低烟碱含量。综合比较分析,以施用有机肥 (每667 m^2用量,生物有机肥50 kg +饼肥40 kg+生物炭50 kg+腐殖酸25 kg)和无机肥(烤烟专用基肥40 kg+提苗肥2 kg+硫酸钾15 kg+硝酸钾10 kg)的配比(有机氮:无机氮比例为5.2∶4.96)综合效果最好,有利于烤烟产质量的提高。

To find the best ratio of organic and inorganic fertilizer and the optimal combination model for Changsha Ecological Organic Tobacco,the effects of organic and inorganic fertilizer on yield and quality of flue-cured tobacco were studied.The results showed that the organic fertilizer could improve the quality of tobacco,including the strains plant height,leaf number,leaf area and single leaf weight,make the total sugar content and potassium content increased,and made the nicotine content decreased.Comprehensive comparison and analysis showed that the application of organic fertilizer （organic fertilizer 50 kg/667 m^2 ＋rapeseeds cake fertilizer 40 kg/667 m^2 ＋biochar 50 kg/667 m^2 ＋humic acid 25 kg/667 m^2）and inorganic fertilizer ratio （flue-cured tobacco special fertilizer 40 kg/667 m^2 ＋promoting fertilize 2 kg/667 m^2 ＋potassium sulfate 15 kg/667m^2＋potassium nitrate 10 kg/667 m^2）was the best,the ratio of organic nitrogen and of inorganic nitrogen wuth 5.2∶4.96 could raise the yield and quality of flue-cured tobacco.