[关键词]
[摘要]
本试验选用8个玉米种衣剂和硫酸锌、氯化钾等2种微肥对玉米茎腐病发生为害的影响进行了相关研究,明确选用适宜的玉米种衣剂品种包衣处理玉米种子,可对玉米茎腐病的发生为害起到一定的抑制作用,茎腐病发病率最高可降低52.83%;合理增施锌、钾等适宜微肥可有效改善玉米植株自身对病害的抵抗能力,提高抗性,玉米茎腐病的发病率明显呈下降趋势,最高可降低56.06%;且种衣剂与微肥协同处理对玉米茎腐病的抑制作用总体呈现出线性叠加作用,发病率可减轻63.57%。筛选出4.23%甲霜.种菌唑微乳剂、25g/L种菌唑悬浮剂、400g/L萎锈.福美双悬浮剂等对玉米茎腐病发生为害抑制效果较理想的种衣剂品种推荐应用。
[Key word]
[Abstract]
In this experiment, 8 maize seed coating agents, 2 kinds of micronutrients, such as ZnSO4 and KCl, were used to study the effects of maize seed coating on maize stalk rot. The selection of suitable maize seed coating agent for coating maize seeds could inhibit maize stalk rot and the incidence rate of stalk rot disease could be reduced by 52.83%. Reasonable application of suitable microelement fertilizer such as ZnSO4 and KCl, can effectively improve the resistance of maize plants to disease and increase resistance. The incidence rate of maize stalk rot is obviously decreasing, and the highest can be reduced by 56.06%. The synergistic effect of seed dressing and micronutrient fertilizer on maize stalk rot showed a linear superposition effect, and the incidence rate could be reduced by 63.57%. 4.23% Nail Cream carbazole microemulsion, 25g / L carbazole suspension and other seed coating agents with ideal inhibition effect on maize stalk rot are recommended for application.
[中图分类号]
[基金项目]
国家重点研发计划(2021YFD1200700、2018YFD0300301);辽宁省农业科学院院长基金项目(2020QN2406)