氮硫互作对五常香稻产量和氮肥利用率的影响
DOI:
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(31471446, 30971724)


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:

    以稻花香2号为材料,设置3个氮(N)水平N1 (0 kg/hm2)、N2 (90 kg/hm2)、N3(180 kg/hm2)和3个硫(S)水平S1(0 kg/hm2)、S2(45 kg/hm2)、S3(90 kg/hm2),配制9个氮硫互作组合,进行完全随机试验,研究不同施肥处理对五常香稻产量构成及氮肥利用率的影响。结果表明:增施氮肥可显著提高有效穗数和每穗总粒数;增施硫肥可显著提高结实率和千粒质量;9个氮硫互作处理中,N2S2的实际产量(7 583 kg/hm2) 最高,较N1S1增产56.3%,氮肥利用率为60.0 kg/kg;低氮高硫的N2S3和高氮低硫的N3S2均浪费氮肥,增加水稻生产成本,增加环境污染风险。综合分析,90 kg/hm2施氮量和45 kg/hm2施硫量是五常香稻生产较理想的氮硫互作施肥模式。

    Abstract:

    In order to find the best nitrogen(N) and sulfur(S) fertilizer combinations to increase the yield of Wuchangxiangdao and improve the nitrogen use efficiency, the aromatic rice named Daohuaxiang 2 was selected, and 9 nitrogen and sulfur fertilizer combinations,N1S1, N1S2, N1S3, N2S1, N2S2, N2S3, N3S1, N3S2, N3S3, were selected as 9 treatments. These treatment were grouped to 3 levels of nitrogen as N1 (0 kg/hm2), N2 (90 kg/hm2), N3(180 kg/hm2) and 3 levels of sulfur as S1(0 kg/hm2), S2(45 kg/hm2), S3(90 kg/hm2) by completely random design. The results showed that: (1)Nitrogen could increase the effective panicles and the number of the spiketlets per panicle; (2) with sulfur application, it can increase setting rate and the 1000-grain weight significantly; (3) Among the 9 treatments, N2S2 could achieve the most highest rice yield of 7 583 kg/hm2 , the highest yield-increasing effect of nitrogen fertilizer,56.3% and the highest nitrogen use efficiency, 60.0 kg/kg. Thus, the treatment N2S2 is the most ideal fertilizer application of the N×S interactions in Wuchang city for the cultivar of Daohuaxiang 2.

    参考文献
    相似文献
    引证文献
引用本文

阳树英,王浩,邹应斌,李奎,靳国靖,吕广动?.氮硫互作对五常香稻产量和氮肥利用率的影响[J].湖南农业大学学报:自然科学版,2020,46(2):.

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:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2020-06-22
  • 出版日期: