期刊文献+

氮肥投入水平对蔬菜地硝态氮淋洗特征的影响 被引量:9

Effect of N-Fertilizer Input Level on Characteristic of Nitrate Leaching in Vegetable Soil
下载PDF
导出
摘要 通过3年的田间定位试验研究了不同施N条件下蔬菜地NO3--N淋洗浓度及淋洗量的变化。结果表明:在农民习惯的传统施N处理(花椰菜为450kg/hm2,苋菜为100kg/hm2,菠菜为309kg/hm2)下蔬菜地NO3--N的淋洗浓度明显高于2个优化施N处理下蔬菜地的NO3--N淋洗浓度。在花椰菜、苋菜和菠菜生长期内,2个优化施N处理下蔬菜地NO3--N平均淋洗量分别是传统施N处理下蔬菜地NO3--N平均淋洗量的19%、18%、9%和13%、34%、21%。试验期间传统施N处理下蔬菜地NO3--N年季平均累积淋洗量约占年季平均施N量的一半,其中休闲期NO3--N平均累积淋洗量占年季平均累积施N量的20%;而其他2个优化施N处理NO3--N年季平均累积淋洗量是年季平均累积施N量的27%,休闲期NO3--N平均淋洗量占年季平均累积施N量的6%,而处理间蔬菜产量并未受到明显影响。 A 3-year field experiment was conducted at China Agricultural University Field Station in Beijing suburb to study characteristics of nitrate leaching in vegetable fields under different applied N-fertilizer amoum treatments. Results showed that nitrate concentrate under traditional N-fertilizer applied treatment was significantly higher than those of two improved N-fertilizer applied treatments; Average nitrate leaching amount during Cauliflower, Amaranth and Spinach growth under two improved applied N-fertilizer amount treatments were of 19%, 18%, 9% and 13%, 34%, 21% of those of traditional treatment; In the whole experiment period and in the fallow period, annual average cumulative nitrate leaching amount under traditional N-fertilizer treatment constituted of 1/2 and 20% of total N-fertilizer applied amount, respectively, contrasting to less than 1/4, 6% under two improved N-fertilizer treatments, respectively. No significant influence on vegetable yields was found between different treatments.
出处 《土壤》 CAS CSCD 北大核心 2006年第6期698-702,共5页 Soils
关键词 蔬菜地 施氮量 硝态氮淋洗 Vegetable field, Applied N-fertilizer amount, Nitrate leaching
  • 相关文献

参考文献15

  • 1陈新平,张福锁.北京地区蔬菜施肥的问题与对策[J].中国农业大学学报,1996,1(5):63-66. 被引量:45
  • 2李俊良,张晓晟,王复三,隋方功,陈宁.蔬菜生产中土壤与施肥问题的研究//李晓林,张福锁,米国华.平衡施肥与可持续优质蔬菜生产.北京:中国农业大学出版社,2000:177—184
  • 3于红梅,龚元石,李子忠,张小兰.不同水氮管理对苋菜和菠菜的产量及硝酸盐含量的影响[J].植物营养与肥料学报,2004,10(3):302-305. 被引量:27
  • 4Iowa Department of Natural Resources. Iowa state-wide rural well-water survey, summary of results: Nitrate and bacteria. Iowa: Iowa Dep. of Natural Resources, 1990
  • 5张维理,田哲旭,张宁,李晓齐.我国北方农用氮肥造成地下水硝酸盐污染的调查[J].植物营养与肥料学报,1995,1(2):80-87. 被引量:635
  • 6Ramos C, Agut A, Lidon AL. Nitrate leaching in important crops of the Valencian Community. Environ-mental Pollution, 2002, 118:215-223
  • 7Heathwaite AL, Trudgill ST, Bud T. Nitrate: The issues//Burt TP, Heathwaie AL, Trudgill ST. Nitrate: Processes,Patterns, and Management. Chihcester, England: John Wiley & Sons, 1993:8
  • 8Keeney D. Sources of nitrate to groundwater. Crit. Rev.Environ. Control, 1986, 16:257-304
  • 9Roman R, Caballero R, Bustos A, Diez JA, Cartaqgena MC, Vallejo A, Caballero A. Water and solute movement under conventional com in Central Spain. Ⅰ. Waterbalance. Soil Sci. Soc. Am. J, 1996, 60: 1530-1536
  • 10Diez JA, Caballero R, RomanR, Tarquis A, Cartagena MC, Vallejo A. Integrated fertilizer and irrigation management to reduce nitrate leaching in Central Spain. J Environ. Qual, 2000, 29:1539-1547

二级参考文献23

共引文献697

同被引文献200

引证文献9

二级引证文献109

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部