您好，欢迎访问黑龙江省农业科学院 机构知识库！
黑龙江省农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Tillage with straw incorporation reduces the optimal nitrogen rate for maize production by affecting crop uptake, utility efficiency, and the soil balance of nitrogen

文献类型： 外文期刊

作者： Wang, Zhengyu 1 ; Sui, Pengxiang 1 ; Lian, Hongli 1 ; Li, Yanan 1 ; Liu, Xiyu 1 ; Xu, Haoran 1 ; Zhang, Hongyu 3 ; Xu, Yingying 4 ; Gong, Xiangwei 1 ; Qi, Hua 1 ; Jiang, Ying 1 ;

作者机构： 1.Shenyang Agr Univ, Coll Agron, Shenyang, Peoples R China

2.Jilin Acad Agr Sci, Inst Agr Resources & Environm, Changchun, Peoples R China

3.Farming & Anim Husb Bur Tongliao, Tongliao, Peoples R China

4.Heilongjiang Acad Agr Sci Branch, Qiqihar Acad Agr Sci, Qiqihar, Peoples R China

关键词： crop N uptake; maize production; optimal N rate; soil N balance; straw incorporation; tillage management

期刊名称：LAND DEGRADATION & DEVELOPMENT （ 影响因子：4.7； 五年影响因子：5.0 ）

ISSN： 1085-3278

年卷期： 2023 年 34 卷 10 期

页码：

收录情况： SCI

摘要： Understanding the combined effects of tillage and straw incorporation on grain yield and nitrogen (N) fertilizer utilization is vital for sustainable agriculture in northeastern China. How various tillage patterns with straw incorporation affect soil N balance and optimal N rate for crop production remains largely unknown. A four-year (2015-2018) field experiment was conducted to assess the impact of rotary tillage with maize straw incorporation (RTS) and plough tillage with straw incorporation (PTS) combined with different N fertilizer rates (0, 112, 187, 262, and 337 kg N ha(-1)) on maize yield, N uptake, soil N balance, nitrogen use efficiency, and optimal N rate. In general, higher straw N uptake and lower N partial factor productivity, N use efficiency, and recovery of applied N in grains were obtained under PTS than under RTS. Moreover, grain yield and both straw and grain N uptake increased with the N application rate. However, no further increase in grain yield was observed when the applied N exceeded 187 kg N ha(-1). PTS resulted in a higher level of unaccounted N from applied N fertilizer (38-81 kg N ha(-1)) than RTS. A high N fertilizer input (>262 kg N ha(-1)) combined with straw incorporation resulted in a high soil mineral N profit and substantially increased unaccounted N (614-715 kg N ha(-1)) over the four-year field trial period. The optimal N input required for the highest maize yield could be reduced by 35.0%-44.6% using tillage with straw return. Nevertheless, PTS was more effective than RTS at lowering the optimal N application rate. Overall, the results of this short-term maize field study conducted in northeastern China suggest that the amount of N fertilizer input required for maize production could be reduced by using tillage with continuous straw incorporation.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：黑龙江省农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台