除草剂药效试验中定点器创新设计与应用前景分析

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中图分类号 S491 文献标识码A 文章编号 1007-7731（2025）09-0116-03

DOI号 10.16377/j.cnki.issn1007-7731.2025.09.025

AbstractTo addressthe partial isues of low positioning eficiency，cumbersome operations，and data inaccuracies inconventional herbicideeficacyfield trials，thisstudydevelopedamultifunctional plot markertoenhance experimental standardization and scientific rigor.The device comprises a square frame，support legs，signage poles，and counting panels，withkey technical features including：an internal counting grid for sub-region division to minimize countingomissons;hinged support legsat four corners ensuring stability on complex terrain；telescopic sleeve structures for signage and counting poles alowing height adjustment acording to crop growth and foldable for compact storage，improving portability.Furthermore，hinged frame connectionsand folding mechanisms enable flexible shape adjustments toaccommodatediverse sampling requirements.This fixed-point devicecanshortenthe field operation time toacertain extent，improvetheaccuracyand portabilityofcounting，and hasrelatively high economicbenefits.The devicedesign buildson extensive field experience withsolid practical foundation;itenhances trial eficiencyand precision while being reusable with evident benefits;its applications extend beyond herbicide evaluation toagricultural pestand disease monitoring，fertilizer eficiency evaluation，and grassland resource surveys.This study provides a reference for the design and broader application of this multifunctional fixed-point device.

Keywordsherbicide; field eficacy test; multi functional fixed-point device; application prospect

根据《农药田间药效试验准则》，除草剂药效试验前期，须确定一个 的定点位，并进行15、30、45、60、120d的观察与计数，这是确保除草剂药效规范试验顺利进行的关键步骤。（剩余3822字）