不同时期喷施硅肥对春小麦白粉病的防治效果及籽粒品质的影响

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中图分类号：S513 文献标识码：A 文章编号：0488-5368（2025）04-0101-05

Abstract： Field experiments were conducted in 2O22 and 2O23 using the spring wheat variety Yongliang 15 as the experimental material.Four treatments were applied：no silicon fertilizer （CK），spraying silicon fertilizer at the jointing stage（JS），spraying silicon fertilizer atthebooting stage（BS），and spraying silicon fertilizer five days after anthesis （HS）. The study examined the prevention and control of wheat powdery mildew and its impacton grain quality under field conditions.The results indicated that spraying silicon fertilizer during the jointing andboting stages had an inhibitory effct on the occurrence of wheat powdery mildew，with the jointing stage showing the most effective results. Spraying silicon fertilizer during these stages significantly increased wheat yield.Spraying silicon fertilizer at the jointing stage enhanced wheat proteinand starch content，thereby improving grain quality.In conclusion，under the conditions of this experiment，spraying silicon fertilizer during the jointing stage has the greatest effect in reducing the occurrence of powdery mildew while improving wheat yield and quality.

Key words：Spring wheat； Silicon fertilizer； Powdery mildew；Grain quality

近年来小麦白粉病流行呈加重趋势。（剩余5414字）