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无土栽培的绿叶蔬菜长势好,生长快,与它在氮素代谢作用中的硝酸还原酶有密切的关系.为此,我们对无土蔬菜的叶片,进行了硝酸还原酶活性的测定,以土栽蔬菜为对照.结果表明,无土栽培蔬菜叶片中的硝酸还原酶活性明显高于对照组. 在取样前,材料要在光下照射一段时间,以提高酶的活性,增加碳水化合物的积累,有利试验的进行.
Soilless culture of green leafy vegetables grow well and grow fast, and its nitrogen metabolism in the role of nitrate reductase has a close relationship.To this end, we soil nitrate-free vegetables, determination of nitrate reductase activity to Soil vegetables as a control.The results showed that nitrate reductase activity in leaves of soilless culture was significantly higher than that of the control group.After sampling, the material should be irradiated under light for a period of time to improve the activity of the enzyme and increase the accumulation of carbohydrates , Conducive to the conduct of tests.