Abstract: Studies based on the cauliflower variety of‘Xiahue 100 Days’ indicated that, when 2.25 kg·hm^{- 2} (NH₄)₂MoO₄ ·2H₂O was used as base fertilizer or 0.1% (NH₄)₂MoO₄ ·2H₂O sprayed as foliage fertilizer, both the chlorophyll content and nitrate reductase activity of leaves could be increased, meanwhile improve the quality of the cauliflower. 15100 kg·hm^{- 2} B used as base fertilizer or 0.1% - 0.2% Belement used as foliage fertilizer also could increase the yield and improve the quality of the cauliflower. However, high concentration (0.4%) of B would make both the yield and the quality of cauliflower reduced.

Key words: Nutrition element, Mo, B, Cauliflower, Quality