钼对小白菜叶色、营养品质及硝酸盐含量的影响

以小白菜（五月慢）为供试材料，采用盆栽的方法，研究施钼水平对小白菜叶色、营养品质及硝酸盐含量的影响。结果表明，施钼能够促进小白菜生长，提高其产量；施钼可以提高小白菜叶绿素含量，使叶色更为浓绿；施钼显著增加了小白菜钼、抗坏血酸、可溶性糖、可溶性蛋白质、部分人体必需氨基酸及非必需氨基酸的含量，改善其营养品质；施钼能够显著降低小白菜硝酸盐含量，在一定程度上提高了小白菜的食用安全性；本试验中，钼水平以0.300 mg·kg^-1效果最好。

Effects of Molybdenum on Leaf Color,Nutritional Quality and Nitrate Contents of Chinese Cabbage

A pot trial was conducted to investigate effects of molybdenum（Mo）on leaf color，nutritional quality and nitrate contents in Chinese cabbage.The results showed that Mo application could promote the growth of Chinese cabbage，increase its yield，raise the contents of chlorophyll，and could change the leaf color to dark green.Mo application remarkably increased the contents of Mo，ascorbate，soluble sugar and soluble protein in Chinese cabbage.Mo application also raised the contents of both essential and non-essential amino acids needed by human body in Chinese cabbage，thus improved its nutritional quality.Mo application could significantlly reduce the nitrate contents in Chinese cabbage，and also，it would improve the edible safety of Chinese cabbage in certain level.In this trial，Mo level of 0.300 mg·kg^-1 had the best effect.