Abstract：To study the reasonable and effective fertilization mode of Chinese cabbage in Huang Huai Hai area, ′Beijing New No. 3′ was used as the test material, 12 different treatments were set as: CK1: No fertilization, CK2: Conventional fertilization, T1: Conventional reduced fertilizer N 100%, T2: Conventional reduced fertilizer N 15%, T3: Conventional reduced fertilizer N 15% + Organic fertilizer replaced N 15%, T4: Conventional reduced fertilizer N 30%, T5: Conventional reduced fertilizer N 30% + Organic fertilizer replaced N 15%, T6: Conventional reduced fertilizer 30% + Organic fertilizer replaced N 30%, T7: Conventional reduced fertilizer N 40%, T8: Conventional reduced fertilizer N 40% + Organic fertilizer replaced N 15%, T9: Conventional reduced fertilizer N 40% + Organic ferti-lizer replaced N 30%, T10: conventional reduced fertilizer N 40% + Organic fertilizer replaced N 40%. The effects of nitrogen fertilizer reduction combined with bio-organic fertilizer on the yield, qua-lity, soil nutrients accumulation and nitrogen utilization efficiency of Chinese cabbage were studied. The results showed that the reduction of nitrogen fertilizer combined with bio-organic fertilizer significantly improved the yield and quality of Chinese cabbage. The highest T3 treatment was 307.43 t/hm2, which was 63.06%, 14.49% and 36.68% higher than that of treatment CK1, CK2 and T1, respectively. It was positively correlation with the content of available nitrogen and potassium in soil. Compared with the conventional fertilization, the nitrate content of Chinese cabbage was significantly reduced and the content of vitamin C and soluble sugar was increased by the combination of nitrogen fertilizer reduction and bio organic fertilizer. The reduction of nitrogen fertilizer and the application an appropriate amount of bio-organic fertilizer also has a significant impact on soil enzyme activity. The application of appropriate amount of organic fertilizer also enhanced the activities of urease, invertase, alkaline phosphatase in rhizosphere soil, while acid phosphatase activity decreased. In addition, compared with T1 treatment, the nitrogen utilization efficiency was increased by 5.54%-60.71%. Considering the yield, quality and nitrogen utilization efficiency of Chinese cabbage, the treatment of conventional fertilizer reduction N 15% + organic fertilizer replacement N 15% was the best fertilization method.
刘中良,高俊杰*,陈震,闫伟强,谷端银. 氮肥减量配施有机肥对大白菜产量、品质及氮肥利用率的影响[J]. 排灌机械工程学报, 2022, 40(11): 1138-1144.
LIU Zhongliang,GAO Junjie*,CHEN Zhen,YAN Weiqiang,GU Duanyin. Effects of nitrogen fertilizer reduction combined with organic fertilizer on yield, quality and nitrogen utilization efficiency of Chinese Cabbage. Journal of Drainage and Irrigation Machinery Engin, 2022, 40(11): 1138-1144.
