当前位置: 首页 > 文章 > 不同还田条件下稻田紫云英氮素释放规律及效应 安徽农业科学 2013 (7) 137-139
Position: Home > Articles > Effects of N-release from Astragalus sinicus in Different Applied Conditions Journal of Anhui Agricultural Sciences 2013 (7) 137-139

不同还田条件下稻田紫云英氮素释放规律及效应

作  者:
唐杉;王允青;曹卫东;赵决建;张智;吴立蒙;吴文革
单  位:
安徽省桐城市农技中心;安徽省农业科学院土壤肥料研究所;安徽省桐城市吕亭镇农技站;安徽省农业科学院水稻研究所;中国农业科学院资源区划所
关键词:
紫云英;早稻;腐解;氮素释放
摘  要:
[目的]探明不同还田方式下紫云英氮素释放规律,为合理施用紫云英、减少化肥用量提供依据。[方法]采用网袋腐解方法,结合田间水稻试验,定量研究紫云英在不同还田条件下氮素释放规律、效应。[结论]在紫云英腐解的不同时期,翻压量始终是影响紫云英氮素释放的重要因素,而是否施肥、移栽水稻对紫云英氮素的腐解释放也起重要的调节作用。在大田试验中,紫云英供氮处理的肥效在翻压前期弱于纯化肥,中期强于纯化肥,最终对水稻生长发育无显著影响。
译  名:
Effects of N-release from Astragalus sinicus in Different Applied Conditions
作  者:
TANG Shan et al(Soil and Fertilizer Institute,Anhui Academy of Agricultural Sciences,Hefei,Anhui 230031)
关键词:
Astragalus sinicus L.;Early rice;Decomposing;N-release
摘  要:
[Objective] In order to provide the basis for using Astragalus sinicu instead of fertilizer partly,the regular pattern of N-release A.sinicu in different applied conditions were studied.[Method] By using decomposing in mesh bag,combined with field rice experiment,the effect and law of N-release from A.sinicu in different applied conditions were quantitatively studied.[Conclusion] The quantity of plowed A.sinicu is always the most important factor of N-release,the fertilizer application and the growth of rice also have effect.In the field experiment,the N released from A.sinicu was less effective than fertilizer before 30 d,but more effective after 30 d.There are no significant difference between N from A.sinicu and fertilizer at last.

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