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缺氮能使茼蒿中的硝酸盐含量降低。在氮磷钾全肥施用的基础上,添加硼砂能降低硝酸盐和亚硝酸盐含量。按纯氮的0.5% ～1 .5 % 添加脲酶抑制剂氢醌(HQ) 能使茼蒿中的硝酸盐含量降低4 .7 % ～10 .7 % ,亚硝酸盐含量降低16.3% ～20.7% 。
Nitrogen deficiency can reduce the nitrate content in Artemisia selengensis. Based on the application of NPK fertilizers, adding borax can reduce nitrate and nitrite content. The addition of urease inhibitor hydroquinone (HQ) at 0.5% ~ 1.5% of pure nitrogen can reduce the nitrate content in Artemisia selengensis by 4.7% -10.7% and the nitrite content by 16.3% -20.7%.