美国采购需求：氨基肥料、水解蛋白基有机氮、大豆氨基酸肥、氨基酸肥料、螯合氨基酸、海洋生物刺激素

I'm looking for detailed information regarding liquid fertilizers specifically formulated for vegetable growth. It would be great to understand various aspects such as the nutrient composition, application rates, and any advantages your product might have over competitors. Additionally, I'm interested in knowing about packaging options and bulk purchasing possibilities. If you could provide insights on the efficacy of your liquid fertilizers in improving yield and plant health, that would be appreciated. I'm particularly keen on understanding how these products fit into sustainable agricultural practices. Any recommendations for specific applications or best practices for use would also be helpful. Looking forward to your detailed response!