Relationship between vegetable nutrition and nitrate content
蔬菜营养与硝酸盐的关系

Nitrate accumulation in vegetables,which related well to vegetable nutrition,becomes one of the limiting factors of non-pollution vegetables production.Preference to nitrate is the nutritional characteristic of vegetables.Nitrate is absorbed by vegetables through high-affinity transport system(HATS)and low-affinity transport system(LATS),and is reduced and transformed under the effect of such essential elements as molybdenum,manganese,iron,copper,sulphur and phosphorus.In this paper,the effects of essential elements on nitrate absorption and reductive transform were reviewed,and the relationships of nitrate accumulation in vegetables with vegetable nutrition of nitrogen,phosphorus,potassium and mid-and microelements as well as with balanced fertilization were discussed.The research keys in the field were prospected for controlling nitrate accumulation,improving vegetables' quality and producing non-pollution vegetables.