周艺敏, 张金盛. 有机肥与无机肥配合施用对蔬菜作物N肥流向的影响[J]. 中国生态农业学报(中英文), 1998, 6(4): 33-36.
引用本文: 周艺敏, 张金盛. 有机肥与无机肥配合施用对蔬菜作物N肥流向的影响[J]. 中国生态农业学报(中英文), 1998, 6(4): 33-36.
Zhou Yimin, Zhang jinsheng. Effects of supplying organic fertilizer in combination with inorganic one on distribution of nitrogen in vegetable crops[J]. Chinese Journal of Eco-Agriculture, 1998, 6(4): 33-36.
Citation: Zhou Yimin, Zhang jinsheng. Effects of supplying organic fertilizer in combination with inorganic one on distribution of nitrogen in vegetable crops[J]. Chinese Journal of Eco-Agriculture, 1998, 6(4): 33-36.

有机肥与无机肥配合施用对蔬菜作物N肥流向的影响

Effects of supplying organic fertilizer in combination with inorganic one on distribution of nitrogen in vegetable crops

  • 摘要: 通过15N标记示踪试驻,研究了常规施肥和不同种植方式露地栽培黄瓜、番茄、花椰菜、大白菜、菜豆的N肥利用率及其流向.有机肥与无机肥配合施用对N肥流向的影响。结果表明,5种蔬菜露地栽培N肥利用率平均为28.63%,土壤N素残留率为39.07%,N素亏损率41.25%。有机肥与无机肥配合施用,当年蔬菜作物无机N肥吸收减少,但土壤N素残留率增加,N素亏损率下降。

     

    Abstract: By 15N-labeled trace trials,nitrogen utilization ratio of cucumher,tomato。cauliflower,chinese cabbage and kindy bean cultivated outdoor under the condition of norrnaI fertilization and different planting pattern,the distribution of nitrogen,and effects of supplying organic fertilizer in combination with inoraganic one are analyzed. The results show that the nitrogen utilization ratio,nitrogen residue in soil,and nitrogen losts of five vegetables are 28.63%,39.07% and 41.25%,respectively.Through supplying organic fertilizer in combinalion with inorganic one,the crop absorption of inorganic nitrogen decreases in the first year.but nitrogen residue in soil increases.

     

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