• 首页期刊简介编委会投稿须知论文要求/规范
周 珂,王晓军,李华芝,等.秸秆深埋条件下不同施氮水平对玉米产量和氮吸收利用的影响[J].中国农学通报,2019,35(33):6-11.王晓军,李华芝,et al.The Effects of Different Nitrogen Application Levels on Maize Yield and the Absorption and Utilization of Nitrogen Under Straw Deep Burial[J].Chinese Agricultural Science Bulletin,2019,35(33):6-11
秸秆深埋条件下不同施氮水平对玉米产量和氮吸收利用的影响
The Effects of Different Nitrogen Application Levels on Maize Yield and the Absorption and Utilization of Nitrogen Under Straw Deep Burial
投稿时间:2019-05-31  修订日期:2019-10-24
DOI:10.11924/j.issn.1000-6850.casb20190500219
中文关键词: 秸秆深埋  氮肥水平  玉米产量  氮素吸收  氮素利用
英文关键词: straw deep burial  nitrogen fertilizer level  maize yield  nitrogen utilization  nitrogen uptake
摘要点击次数: 136
全文下载次数: 91
基金项目:国家重点研发项目“春玉米、粳稻主产区肥料高效利用技术”(2017YFD0300503)。
作者单位E-mail
周 珂 黑龙江大学农业资源与环境学院 953526481@qq.com 
王晓军 黑龙江省农业科学院 xiaojun00@163.com 
李华芝 黑龙江大学农业资源与环境学院 497491603@qq.com 
徐 欣 黑龙江大学农业资源与环境学院 xuxinhd@126.com 
高洪生 黑龙江省农业科学院 ghs6837@163.com 
焦晓光 黑龙江大学农业资源与环境学院 yysui1973@aliyun.com 
中文摘要:
      为探究秸秆深埋条件下不同施氮水平对玉米产量和氮吸收利用的影响,以玉米为研究对象,设置秸秆深埋(无秸秆、秸秆深埋)为主因素,施氮水平(无氮、低氮、中氮、高氮)为副因素,测定玉米的产量、籽实氮积累量和氮肥利用效率。结果表明,与无秸秆处理相比,秸秆深埋可增加玉米产量,增加幅度在4.61%~9.88%之间。在秸秆深埋条件下,各施氮水平玉米产量之间皆存在显著差异(P<0.05)。玉米籽实氮积累量随施氮量增加而增加,施氮量与籽实氮积累量之间存在极显著正相关(P<0.01),高氮时秸秆深埋的籽实氮积累量高于无秸秆处理。氮肥农学利用率随施氮量增加而增加,偏生产力随施氮量增加而降低,高氮时秸秆深埋的氮肥农学利用率最高为14.61 kg/kg。秸秆深埋处理可以提高氮肥偏生产力。综上,在实际生产中,秸秆深埋时适当增施氮肥生产效果较好。
英文摘要:
      To explore the effects of different nitrogen levels on maize yield and nitrogen uptake and utilization under the condition of straw deep burial, the maize yield, seed nitrogen accumulation, and nitrogen use efficiency were determined with maize taken as the research subject, straw burial (no straw, straw deep burial) set as main factors and nitrogen application levels (no, low, medium and high nitrogen) set as vice factors. The results showed that compared to no straw, straw deep burial could increase yield, with increasing rates between 4.61%-9.88%. There were significant differences between yields of different nitrogen application levels under straw deep burial (P<0.05). Maize seed nitrogen accumulation increased as nitrogen application increasing, and the correlation between them was extremely significant positive (P<0.01). When the nitrogen application level was high, the seed nitrogen accumulation of straw deep burial was higher than that of no straw. Agronomic utilization of nitrogen fertilizer increased as nitrogen application increasing, while nitrogen partial factor productivity decreased as nitrogen application increasing. When the nitrogen application level was high, the agronomic utilization of nitrogen fertilizer under straw deep burial was highest, which was 14.61 kg/kg. Straw deep burial could increase nitrogen partial factor productivity. In conclusion, it is better to increase nitrogen fertilizer properly under straw deep burial in practice.
作者简介:
查看全文   HTML   发表评论  下载PDF阅读器