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采用大田试验研究专用叶面营养液对主要叶菜的增产效果；并以芥菜为供试叶菜系统研究了专用叶面营养液对叶菜的增产机理。结果表明；专用叶面营养液可明显促进芥菜对Ｎ、Ｐ、Ｋ养分的吸收，提高叶片硝酸还原酶活性、叶绿素含量及光合速率，增加产量和改善品质。专用叶面营养液分别优于这种营养液中的营养物质和生长调节剂。芥菜喷施专用叶面营养液，与对照相比，叶绿素含量、光合速率、硝酸还原酶活性分别增加２０．２％、３６％、１．２０１μｇ／（ｇ·ｈ）；平均增产２４．６％；Ｖｃ、可溶性糖分别增加８７ｍｇ／ｋｇ和１．７ｇ／ｋｇ。
Field experiments were conducted to study the effects of special foliar nutrient solution on the yield increase of main leafy vegetables. The mustard leaf system was used to study the mechanism of increase yield of leafy vegetables by the special foliar nutrient solution. The results showed that the special foliar nutrient solution could obviously promote the uptake of N, P and K in mustard, increase nitrate reductase activity, chlorophyll content and photosynthetic rate, increase yield and improve quality. Special foliar nutrient solution respectively better than the nutrients in the nutrient solution and growth regulator. The leaf nutrient solution of mustard was sprayed with special foliar nutrient solution, the content of chlorophyll, photosynthetic rate and nitrate reductase activity increased by 20.2%, 36% and 1.201μg / (g · h) respectively compared with the control; ; Vc, soluble sugar increased by 87mg / kg and 1.7g / kg respectively.