药肥混用对烟草病害防控及生长、品质产量的影响

[目的]探讨甲霜·锰锌和中生菌素与烟草专用肥混合施用对烟草的应用效果。[方法]调查田间烟草病害的发生和农艺性状以及测定其产量品质。[结果]药肥混用可有效降低和推迟烟草黑胫病和青枯病的发生,增强烟株长势,提高产量和改善品质。其中较好的药肥混用方式为40%作基肥、60%作追肥,施用量为50 kg/667m^2,药后60、90 d对黑胫病和青枯病的防效分别达95.65%和69.53%,63.24%和85.32%,产量提高11.99%。[结论]生产上建议药肥混用且提高追肥的施用比例。

Effects of Mixed Application of Pesticides Fertilizer on Control of Diseases,Agronomic Traits and Yield,Quality of Tobacco

[Aims] The study aims to investigate the effects of the mixed application of metalaxyl manganese zinc,endophyte and special fertilizer on tobacco. [Methods] The disease resistance, agronomic traits and main chemical compositions were analysised under field condition through random block design. [Results] The results showed that mixed application of pesticide-fertilizer could effectively reduce and delay the occurrence rate of black shank and bacterial wilt, promote tobacco plants growth and improve the yield and quality of tobacco leaves. Among them, the dosage of pesticide-fertilizer was 50 kg/667m^2(40% as base fertilizer, 60% as top application). The mixed application of pesticide-fertilizer had better control effect of 95.65 and 69.53%, 63.24 and 85.32% on black shank and bacterial wilt of tobacco for 60 and 90 d later, respectively. In addition, it could increase the output of tobacco leaves by 11.99%.[Conclusions] It was suggested that pesticides and fertilizer should be mixed application and increase the proportion of top dressing.