为了解腐植酸叶面肥在生产中对甘蓝产量和品质的作用效果以及适宜喷施浓度,在甘蓝上进行了腐植酸叶面肥不同喷施浓度对比试验。结果表明,喷施腐植酸叶面肥可增加甘蓝单球重、提高商品率、提高V c含量、增加可溶性糖含量、增加可溶性固形物含量、降低硝酸盐含量等,从而改善甘蓝品质,提高甘蓝产量,与对照比,增产5.15%~13.48%,其中腐植酸叶面肥600倍增产效果极显著,达13.48%;增加经济收入,与对照比,增收4.93%~13.34%,其中腐植酸叶面肥600倍增收最明显,为13.34%。 In order to understand the effect of humic acid foliar fertilizer on the yield and quality of cabbage in the production and the suitable spraying concentration, the contrast test of different spraying concentration of humic acid foliar fertilizer was carried out on cabbage. The results showed that spraying humic acid foliar fertilizer could increase the single weight of cabbage, increase the commodity rate, increase the content of V c, increase the content of soluble sugar, increase the content of soluble solids and nitrate content, so as to improve the quality of cabbage and increase the content of cabbage Compared with the control, the yield increased by 5.15% ~ 13.48%, of which humic acid foliar fertilizer yield increased significantly by 600 times, up to 13.48%; increased economic income, compared with the control, an increase of 4.93% ~ 13.34%, of which humic acid foliar Fertilizer 600 times the most obvious increase, 13.34%.