农家肥与化肥配合使用对烤烟产值和品质的影响

目的]探讨农家肥与化肥配合使用对烤烟的品质和产值的影响。方法]在湖北襄樊保康县大田试验中，设6个处理：100％无机肥（T1）、加％农家肥＋80％无机肥（T2）、40％农家肥＋60％无机肥（T3）、60％农家肥＋40％无机肥（T4）、80％农家肥＋20％无机肥（T5）、100％农家肥（T6），研究不同配比的化肥和农家肥对烤烟产值和品质的影响。结果]6个处理中，以T3处理效果最好，烤烟中的烟碱含量、全氮含量、烟叶中钾含量均达到当地条件下的最优值，分别为1．96％、1．38％和2．39％，烟叶的上中等烟叶比率90．55％，均价11．38元／kg，均达到当地最优。结论]在当地土壤状况条件下，施用40％农家肥＋60％无机肥，不仅可以提高烟叶中的钾氯比，使烟叶更趋于优质优产，而且还可以提高烟叶的经济效益。

Effect of Combined Application of Farm Manure and Chemical Fertilizer on the Output Value and Quality of Flue-cured Tobacco

Objective] The study aimed to discuss the effect of combined application of farm manure and chemical fertilizer on output value and quality of fluecured tobacco.Method] In the field experiment in Baokang County,Xiangfan,Hubei Province,6 treatments were set up as: 100% inorganic fertilizer(T1),20% farm manure + 80% inorganic fertilizer(T2),40% farm manure + 60% inorganic fertilizer(T3),60% farm manure + 40% inorganic fertilizer(T4),80% farm manure + 20% inorganic fertilizer(T5),100% farm manure(T6).The effects of application of chemical fertilizers and farm manure with different proportion on the output value and quality of flue-cured tobacco were studied.Result] The treatment effect of T3 was best among six treatments.After application of T3,the contents of nicotine,total nitrogen and potassium of flue-cured tobacco leaves were up to the optimal value under the local condition,which were 1.96%,1.38% and 2.39% resp.;the ratio of superior middle grade tobacco leaves was 90.55% and the average price was 11.38 yuan/kg,which reached the optimal level in local place.Conclusion] Application of 40% farmmanure + 60% fertilizer was not only improving the rate of potassium and chloride in tobacco leaves,but also increasing the economic benefits of flue-cured tobacco under the local soil condition.