Urea + nitrification inhibitor DMPP ( Entec 46 ), Urea + nitrification inhibitor DCD ( U + DCD ) and organic - inorganic fertilizer ( OIF ) decreased significantly nitrate content of rape.

尿素+硝化抑制剂DMPP ( Entec46 ) 、 尿素+硝化抑制剂DCD ( U+DCD ) 和有机无机复混肥 ( OIF ) 3种氮肥显著降低了油菜硝酸盐含量.

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