采用田间试验，研究不同量蔬菜废弃物沼渣与化肥配合基施对甘蓝产量和品质及土壤肥力的影响。结果表明，与常规化肥处理相比，适量的沼渣配施化肥可提高甘蓝产量，增加Vc和可溶性糖含量，降低硝酸盐含量，能活化土壤养分，提升土壤肥力。综合各方面因素，基施80%常规化肥(磷酸二铵480 kg/hm2+硫酸钾复合肥300 kg/hm2 )+3 000 kg/hm2沼渣处理最为理想，甘蓝增产14.04%，且明显改善甘蓝品质及土壤肥力。

Field experiments were conducted to research the effects of different amounts of biogas residue produced by anaerobic fermentation of vegetable wastes with chemical fertilizer on yield， quality and soil fertility of Cabbage. The results showed that compared with conventional chemical fertilizer treatment， appropriate amount of biogas residue combined with chemical fertilizer could increase the yield of Cabbage， increase the content of Vitamin C(Vc)， soluble sugar and reduce the content of nitrate， activate soil nutrients and improve soil fertility. Considering all the factors， it was the most ideal treatment which the basal application of 80% conventional fertilizer (diammonium phosphate 480 kg/hm2+potassium sulfate 300 kg/hm2)+3 000 kg/hm2 biogas residue， the yield of cabbage increased by 14.04%， and the quality and soil fertility of cabbage were significantly improved.

S635；S147.2

甘肃省现代农业科技支撑体系区域创新中心重点科技项目(2019GAAS53-53)。