Applying compound fertilizer can obviously improve soluble sugar and Vc contents, but a different effect on the content of amino acid in romaine lettuce is observed.
施用复合肥明显提高生菜可溶性糖和Vc含量，但对氨基酸含量的影响不一致。
Applying compound fertilizer can obviously improve soluble sugar and Vc contents, but a different effect on the content of amino acid in romaine lettuce is observed.
施用复合肥明显提高生菜可溶性糖和Vc含量，但对氨基酸含量的影响不一致。
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