Abstract This study investigated the effect of vermicompost tea (VCT) as a natural foliar fertilizer in faba bean. To determine the effect of VCT at different doses on the growth and reproduction of faba bean, VCT was produced and three different concentrations (0, 10, and 20% VCT) were applied as a foliar fertilizer to faba bean plants. Plant height, number of flowers, and pods per plant as well as soluble sugars were measured weekly after treatment for a period of 11 weeks. Treated plants were larger and had more flowers per clump, as well as more clumps and pods per plant than the control. Moreover, treated plants reached the flowering stage at least 3 weeks earlier than the control. This could be explained by the presence of nutrients, humic acid, and probably hormones in VCT, which may positively affect growth, reproduction, and yield. Treatment at 10% VCT presented better values than 20% VCT. The latter contained more humic acid, which probably limited growth and flowering. The soluble sugar and protein contents were higher in treated plants, and the highest values coincided with the flowering and reproductive stages. Similarly, seeds produced by treated plants were richer in protein that control seeds. These results indicate that 10% VCT is a useful fertilizer to improve growth in faba bean. This study highlights the possibility of using VCT as a foliar fertilizer to increase growth in faba bean.

中文翻译：

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蚯蚓粪茶对蚕豆生长和产量的影响

摘要 本研究调查了蚯蚓粪茶（VCT）作为蚕豆天然叶面肥的效果。为了确定不同剂量的 VCT 对蚕豆生长和繁殖的影响，生产了 VCT 并将三种不同浓度（0、10 和 20% VCT）作为叶面肥施用于蚕豆植物。在处理 11 周后每周测量株高、花数和每株豆荚以及可溶性糖。与对照相比，处理过的植物更大，每丛有更多的花，以及每株植物的丛和豆荚。此外，处理过的植物比对照提前至少 3 周达到开花期。这可以通过 VCT 中存在的营养物质、腐殖酸和可能的激素来解释，它们可能对生长、繁殖和产量产生积极影响。10% VCT 的治疗表现出比 20% VCT 更好的值。后者含有更多的腐植酸，这可能会限制生长和开花。处理后的植株可溶性糖和蛋白质含量较高，最高值与开花和生殖期相吻合。同样，处理过的植物产生的种子含有更丰富的蛋白质来控制种子。这些结果表明，10% 的 VCT 是促进蚕豆生长的有用肥料。这项研究强调了使用 VCT 作为叶面肥来促进蚕豆生长的可能性。同样，处理过的植物产生的种子含有更丰富的蛋白质来控制种子。这些结果表明，10% 的 VCT 是促进蚕豆生长的有用肥料。这项研究强调了使用 VCT 作为叶面肥来促进蚕豆生长的可能性。同样，处理过的植物产生的种子含有更丰富的蛋白质来控制种子。这些结果表明，10% 的 VCT 是促进蚕豆生长的有用肥料。这项研究强调了使用 VCT 作为叶面肥来促进蚕豆生长的可能性。