不同浓度海藻液肥对辣椒幼苗生长的影响

[目的]研究不同浓度海藻液肥对辣椒幼苗生长状况的影响。[方法]以辉腾8号为研究对象，设置清水（CK）、1 200倍稀释液、1 600倍稀释液、2 000倍稀释液和2 400倍稀释液共5个处理，研究不同浓度的海藻液肥对辣椒苗期生长的影响，观测辣椒幼苗生长指标，以筛选辣椒壮苗培养的最适施用浓度。[结果]在辣椒穴盘育苗过程中叶面喷施2 000倍海藻液肥，可提高辣椒幼苗的根粗、根冠比、壮苗指数和G值，有助于辣椒幼苗的生长。[结论]建议叶面喷施2 000倍海藻液肥，是培育辣椒穴盘壮苗的最佳浓度，可在生产中推广应用。

Effects of Different Concentrations of Seaweed Liquid Fertilizer on Growth of Pepper Seedlings

[Objective]The aim was to study the effects of different concentrations of seaweed liquid fertilizer on the growth of pepper seedlings.[Method]Taking Huiteng No.8 as the research object,five treatments including clear water(CK),1200-fold dilution,1600-fold dilution,2000-fold dilution and 2400-fold dilution were set up to study the effects of seaweed liquid fertilizer at different concentrations on pepper seedling stage.The effect on growth was observed,and the growth indexes of pepper seedlings were observed to screen the optimum application concentration for the cultivation of strong pepper seedlings.[Result]Foliar spraying 2000times seaweed liquid fertilizer in the process of pepper plug seedling cultivation could increase the root thickness,root-to-shoot ratio,strong seedling index and G value of pepper seedlings,and helped the growth of pepper seedlings.[Conclusion]Foliar spraying 2000 times seaweed liquid fertilizer was the best concentration for cultivating strong seedlings of pepper plugs and can be popularized and applied in production.