Effects of Nitrogen Fertilizer and DCD on Cucumber Growth and Nitrate Leaching Loss from Soil in Greenhouse

NIE Wen-jing; LI Bo-wen; GUO Yan-jie; LIU Wei

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Effects of Nitrogen Fertilizer and DCD on Cucumber Growth and Nitrate Leaching Loss from Soil in Greenhouse

更新时间：2024-11-07

- Effects of Nitrogen Fertilizer and DCD on Cucumber Growth and Nitrate Leaching Loss from Soil in Greenhouse
- Vol. 25, Issue 6, (2011)
- 作者机构：
  
  1. 河北农业大学资源与环境学院
  2. 林肯大学土壤环境质量中心
  3. 河北大学化学与环境科学学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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NIE Wen-jing, LI Bo-wen, GUO Yan-jie, et al. Effects of Nitrogen Fertilizer and DCD on Cucumber Growth and Nitrate Leaching Loss from Soil in Greenhouse[J]. 2011, 25(6).
DOI：

NIE Wen-jing, LI Bo-wen, GUO Yan-jie, et al. Effects of Nitrogen Fertilizer and DCD on Cucumber Growth and Nitrate Leaching Loss from Soil in Greenhouse[J]. 2011, 25(6). DOI：

摘要

以传统水氮管理为对照

进行优化水氮管理条件下氮肥与双氰胺配施对大棚黄瓜氮肥利用效率、氮素淋洗损失及黄瓜产量与品质的影响研究。结果表明

与传统水氮管理相比

优化水氮管理虽然减少了氮肥用量及灌水量

但黄瓜产量与传统处理无显著差异

黄瓜硝酸盐含量显著低于传统处理的硝酸盐含量。随追肥及灌水次数增加

优化水氮管理0-60cm土层硝态氮呈增加趋势

60cm以下各土层不同时期变幅较小

W2N2+DCD、W2N3+DCD、W2N4+DCD的变化范围分别为6.09～33.36mg/kg

19.03～29.28mg/kg

14.98～25.46mg/kg

表明氮肥中添加DCD有效抑制了NO3--N向下层土壤的淋洗。初瓜期、盛瓜期、末瓜期各处理0-180cm土层硝态氮积累量大小顺序为W1N1>W2N3+DCD>W2N2+DCD>W2N4+DCD>W1N0。施用氮肥及DCD处理的表层土壤铵态氮含量显著高于W1N1的铵态氮含量。W2N4+DCD比传统水氮处理氮肥用量减少56.88%

灌水量减少33.30%

初瓜期、盛瓜期、末瓜期比传统水氮处理硝态氮累积量分别减少62.93%

74.42%

69.35%

极大降低土壤氮素的淋洗风险

综合...

Abstract

Effects of applying different nitrogen fertilizer or water and DCD on cucumber yield

quality and nitrate leaching loss in soil were studied in greenhouse.The results showed that there was no significant difference in cucumber yield of the conventional water and nitrogen management and optimize water and nitrogen management

with sidedressed N input in comparison with conventional water and nitrogen management.Nitrate content in cucumber in optimize water and nitrogen management was significantly lower than t...

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