The objective of this study was to determine the effect of fertilizer placement on the growth of eclipta [Eclipta prostrata (L.) L.] and evaluate its interference with container-grown ornamental plants, including Japanese boxwood (Buxus microphylla Siebold & Zucc.) and ligustrum (Ligustrum lucidum W.T. Aiton). Results indicated that subdressing reduced E. prostrata shoot weight by 28%, 42%, and 46% at depths of 2.5, 5.0, and 7.5 cm, respectively, in comparison with a topdressed fertilizer treatment (a standard industry practice). Presence of E. prostrata reduced the growth of both ornamental species. Ligustrum shoot weight decreased as subdressing depth increased, while boxwood growth was most notably reduced at the 7.5-cm depth in comparison with topdressed containers. Overall, results indicated that subdressing may be an effective weed management strategy, but subdressing depth needs to be based on initial liner size to prevent possibly delays in production time.

中文翻译：

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施肥对旱莲草 (Eclipta prostrata) 生长和与容器种植观赏植物竞争的影响

本研究的目的是确定施肥对旱莲草生长的影响[旱莲草(L.) L.] 并评估其对容器种植的观赏植物的干扰，包括日本黄杨木 (小叶黄杨Siebold & Zucc.) 和女贞子 (女贞子WT艾顿）。结果表明，底物减少E. prostrata在 2.5、5.0 和 7.5 厘米深度处，与追肥处理（标准行业惯例）相比，枝条重量分别增加了 28%、42% 和 46%。的存在E. prostrata减少了两种观赏物种的生长。女贞子的枝条重量随着底施深度的增加而下降，而与追肥容器相比，黄杨木生长在 7.5 cm 深度最显着减少。总体而言，结果表明底施可能是一种有效的杂草管理策略，但底施深度需要基于初始衬管尺寸，以防止可能延迟生产时间。