春秋季红壤旱地氨挥发对氮施用量、气象因子的响应
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

* 国家自然科学基金项目(40305019);中国科学院知识创新工程项目(KZCX2-413)资助


AMMONIA VOLATILIZATION IN RELATION TO N APPLICATION RATE AND CLIMATE FACTORS IN UPLAND RED SOIL IN SPRING AND AUTUMN
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    通过红壤旱地种植牧草马唐和蔬菜冬萝卜轮作试验,研究了在春秋二季红壤旱地氨挥发对不同施氮量和气象因子的响应。结果表明,红壤旱地春季牧草实验,氮肥处理N90、N160和N230,氨挥发持续10~17d,在施肥后6~8d达到峰值,峰值(扣除对照N0)分别为N0.11、0.57和1.84kghm-2d-1。秋季氮肥处理N70、N130、N190和N250以基肥和以水带肥追施(基/追比为7∶3)氨挥发持续时间均为10~11d,基肥氨挥发峰值(扣除对照N0)分别为N0.02、0.05、0.06kghm-2d-1和0.09kghm-2d-1;追肥氨挥发峰值(扣除对照N0)分别为N0.05、0.22、0.38kghm-2d-1和0.72kghm-2d-1。不同施氮处理,春季累计氨挥发量为N0.67~5.16kghm-2,占施入肥料N的0.74%~2.24%;秋季累计氨挥发量为N0.37~3.04kghm-2,占施入肥料N的1.31%~3.69%。红壤旱地春秋二季氨挥发量(y)均随施N量(x)的提高而指数递增,其关系式分别为:y=0.1576e0.0146xy=0.1826e0.0112x。显著性检验表明,春秋两季不同施氮量处理之间,土壤氨挥发量及挥发通量差异均达到显著水平。春秋二季基肥氨挥发总量和通量均与气温、气压、蒸发量和土温等环境气象因子有较好的相关性(p<0.05)。

    Abstract:

    Ammonia volatilization in relation to N application rate and climate factors was studies through field experiment in red soil under the crop rotat ion of Smooth Crabgrass (Digitaria ischaemum) in spring and Winter Radish (Raphanus sativus) in autumn.Results indicate that ammonia volatilization in Treatments N90, N160 and N230 in spring dragged on for 10~17 days, and peaked at the 6th~8th day after urea application, reaching N 0.11, 0.57 and 1.84 kg hm-2d-1, respectively, and the total amount of N loss through ammonia volatilization was N 0.67~5.16 kg hm-2, accounting for 0.74%~2.24% of the total N applied In autumn, in Treatments N70, N130, N190 and N250 (the ratio of basal and sidedressing is 7.3) ammonia volat ilization occurred both after application of basal fertilizer and tillering fertilizer and lasted 10~11 days, with peaks reaching N 0.02, 0.05, 0.06 and 0.09 kg hm-2d-1 for the basal fertilizer, and N 0.05, 0.22, 0.38 and 0.72 kg hm-2d-1 for the tillering fer tilizer respect ively.The total amount of N loss through ammonia volatilization was N 0.37~3.04 kg hm-2, accounting for 1.31%~3.69% of the total N applied to Winter Radish (Raphanus sativus).

    参考文献
    相似文献
    引证文献
引用本文

周静,崔键,王国强,何圆球,马友华.春秋季红壤旱地氨挥发对氮施用量、气象因子的响应[J].土壤学报,2007,44(3):499-507. DOI:10.11766/trxb200601260317 Zhou Jing, Cui Jian, Wang Guoqiang, He Yuanqiu, Ma Youhua. AMMONIA VOLATILIZATION IN RELATION TO N APPLICATION RATE AND CLIMATE FACTORS IN UPLAND RED SOIL IN SPRING AND AUTUMN[J]. Acta Pedologica Sinica,2007,44(3):499-507.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2006-01-26
  • 最后修改日期:2006-06-11
  • 录用日期:
  • 在线发布日期: 2013-02-25
  • 出版日期: