摘要
[Objective] This study aimed to investigate the effects of liquid seaweed bio-organic fertilizer on seed germination and seedling growth of different vegetables. [Method] Serial dilution concentrations of liquid seaweed bio-organic fertilizer were prepared for seed soaking and pot incubation of cucumber, tomato and chili, to ob- serve the effects of liquid seaweed bio-organic fertilizer on seed germination and seedling growth of vegetables. [Result] Compared with the control, germination rate of cucumber and tomato seeds applied with 600-fold liquid seaweed bio-organic fer- tilizer varied significantly; germination rate of chili seeds applied with 400-fold liquid seaweed bio-organic fertilizer varied significantly; germination energy and germination index of chili seeds applied with different dilution concentrations of liquid seaweed bio-organic fertilizer presented no significant differences. In addition, 200-fold and 400-fold liquid seaweed bio-organic fertilizer significantly improved the root length, plant height, plant fresh weight, plant dry weight, chlorophyll content and leaf area of cucumber, tomato and chili seedlings; after treated with 600-fold liquid seaweed bio-organic fertilizer, root length, chlorophyll content and leaf area of cucumber seedlings varied significantly compared with the control, but no significant differences were observed in plant height, plant fresh weight and plant dry weight; after treated with 600-fold liquid seaweed bio-organic fertilizer, root length, chlorophyll content, plant height, plant fresh weight and plant dry weight of chili and tomato varied sig- nificantly compared with the control, but no significant differences were observed in leaf area. [Conclusion] Soaking vegetable seeds with liquid seaweed bio-organic fer- tilizer can significantly improve seed generation rate and seedling growth.
[目的]研究海藻生物有机液肥对不同蔬菜的种子萌发和幼苗生长影响效果。[方法]以不同稀释浓度的海藻生物有机液肥,对黄瓜、番茄、辣椒3种蔬菜种子进行浸种处理和盆栽试验,观察海藻生物有机液肥对蔬菜种子萌发和幼苗生长的影响效果。[结果]与对照相比,施用600倍稀释的海藻生物有机液肥的黄瓜、番茄种子的发芽率存在显著差异,施用400倍稀释的海藻生物有机液肥的辣椒种子的发芽率存在显著差异;以不同稀释倍数的海藻生物有机液肥浸种处理的辣椒种子的发芽势和发芽指数无显著差异。200、400倍稀释的海藻生物有机液肥对黄瓜、番茄、辣椒幼苗生长的根长、株高、株鲜重、株干重、叶绿素含量、叶面积均有显著提高。600倍稀释的海藻生物有机液肥处理黄瓜种子后,幼苗与对照相比,根长、叶绿素含量、叶面积存在显著差异,但株高、株鲜重、株干重无显著差异。600倍稀释的海藻生物有机液肥对辣椒、番茄浸种后,与对照相比,幼苗根长、叶绿素含量、株高、株鲜重、株干重存在显著差异,但叶面积无显著差异。[结论]海藻生物有机液肥应用蔬菜种子浸种;对提高发芽率和细苗壮苗具有较好的效果。
