黄东风, 王果, 李卫华, 邱孝煊. 不同施肥模式对小白菜生长、营养累积及菜地氮、磷流失的影响[J]. 中国生态农业学报(中英文), 2009, 17(4): 619-624. DOI: 10.3724/SP.J.1011.2009.00619
引用本文: 黄东风, 王果, 李卫华, 邱孝煊. 不同施肥模式对小白菜生长、营养累积及菜地氮、磷流失的影响[J]. 中国生态农业学报(中英文), 2009, 17(4): 619-624. DOI: 10.3724/SP.J.1011.2009.00619
HUANG Dong-Feng, WANG Guo, LI Wei-Hua, QIU Xiao-Xuan. Effect of fertilization mode on growth and nutrition accumulation in vegetables, and loss of nitrogen and phosphorus in vegetable fields[J]. Chinese Journal of Eco-Agriculture, 2009, 17(4): 619-624. DOI: 10.3724/SP.J.1011.2009.00619
Citation: HUANG Dong-Feng, WANG Guo, LI Wei-Hua, QIU Xiao-Xuan. Effect of fertilization mode on growth and nutrition accumulation in vegetables, and loss of nitrogen and phosphorus in vegetable fields[J]. Chinese Journal of Eco-Agriculture, 2009, 17(4): 619-624. DOI: 10.3724/SP.J.1011.2009.00619

不同施肥模式对小白菜生长、营养累积及菜地氮、磷流失的影响

Effect of fertilization mode on growth and nutrition accumulation in vegetables, and loss of nitrogen and phosphorus in vegetable fields

  • 摘要: 在天然降雨条件下, 通过田间小区试验, 研究了7种不同施肥模式(不施肥, 化肥基施, 化肥基追肥各半, 化肥和双氰胺基施, 化肥和双氰胺基追肥各半, 化肥和有机肥各半, 有机肥)对小白菜植株株高、株重、产量、氮磷钾累积量、肥料利用率及菜地硝态氮、氨态氮及水溶性总磷随地表径流流失的影响。结果表明, 与不施肥对照处理相比, 化肥和有机肥各半、化肥和双氰胺基追肥各半2种施肥模式不仅能改善小白菜生长农艺性状, 可分别提高产量154.44%和172.18%, 增加植株氮、磷、钾累积量183.20%和327.21%、310.49%和247.67%、205.95%和189.39%, 蔬菜种植期间菜地土壤硝氨态氮总量、水溶性总磷随地表径流的流失量还能分别减少63.10%和56.53%、39.97%和48.44%, 从而明显减少了菜地土壤造成的农业面源污染, 因此, 该2种施肥模式值得在今后蔬菜生产上加以推广应用;而化肥基施的施肥模式明显促进了菜地土壤硝态氮、氨态氮和水溶性磷随地表径流的流失, 故此种施肥模式在蔬菜生产上应加以避免。

     

    Abstract: Field plot trials involving 7 fertilization modes (non-fertilizer, chemical fertilizer as base manure, chemical fertilizer as half-base manure and half-dressing manure, chemical fertilizer and dicyandiamide as base manure, chemical fertilizer and dicyandiamide as half-base manure and half-dressing manure, combined chemical fertilizer and organic manure, and organic manure) were conducted under rain-fed conditions. Then the effect of the fertilization modes on plant height, weight, yield, as well as nitrogen, phosphorus and potassium accumulation, fertilizer utilization ratio, and loss of nitrate-N, ammonia-N and water-soluble-P in vegetable fields was investigated. Compared with the control treatment, results show that two fertilization modes (combined chemical fertilizer and organic manure, chemical fertilizer and dicyandiamide as half-base manure and half-dressing manure), improve plant agri-properties, respectively increase vegetable yield by 154.44% and 172.18%, enhance nitrogen, phosphorus and potassium accumulation in vegetables by 183.20% and 327.21%, 310.49% and 247.67%, 205.95% and 189.39% respectively. The two application modes also decrease the total amount of nitrate-N and ammonia-N, and water-soluble-P loss via runoff in vegetable fields by 63.10% and 56.53%, 39.97% and 48.44% respectively. Consequently, agro-non-point sources pollution from vegetable fields significantly drop under the two fertilization modes. Therefore, the two fertilization modes should be adopted in future vegetable production. If chemical fertilizer is as base manure, loss of nitrate-N, ammonia-N and water-soluble-P via runoff would increase.

     

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