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三种粉锈宁络合物,即保丰宁、植保宁和粉锈铜对小麦锈病防病保产效果显著,用药量低、持效期长,使用安全,而且在田间试验与粉锈宁用药量相同的情况下,其效果接近。据室内测定,植保宁具有较强的内吸传导性能,但基本上是向上传导;具有较强的治疗和铲除作用,但对夏孢子萌发的影响很弱。据田间试验,用药量与品种感病性关系密切,随着小麦品种感病性提高,用药量应适当增加,才能控制锈病为害;施药次数主要取决于施药时小麦所处的生育期,施药1次的适期在病叶率5％—10％时、小麦处于旗叶伸长至抽穗期。
The three triadimefon complexes, namely, Bao Fengning, Plant Protection and Fengying Cu, have significant effects on disease prevention and protection of wheat rust, low dosage, long duration of use, safe use, and the same dosage as that of triadimefon in field trials In the case, its effect is close. According to the indoor determination, plant protection Ning has a strong absorption performance, but it is basically upward conduction; has a strong effect of treatment and eradication, but the germination of uredospores is weak. According to the field test, the dosage is closely related to the susceptibility of the cultivars. As the susceptibility of the wheat cultivars increased, the dosage should be appropriately increased to control the rust damage. The application times mainly depend on the growth period of wheat in the application period, The first application of the appropriate period in the diseased leaf rate of 5% -10%, wheat flag leaf elongation to heading.