Effects of Different Tillage Patterns on Maize Yield and Nitrogen Utilization Efficiency in Aeolian Sandy Soil of Northeast China

QIAO Yunfa; MIAO Shujie; LU Xinchun

doi:10.13870/j.cnki.stbcxb.2019.05.030

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Effects of Different Tillage Patterns on Maize Yield and Nitrogen Utilization Efficiency in Aeolian Sandy Soil of Northeast China

更新时间：2025-03-12

- Effects of Different Tillage Patterns on Maize Yield and Nitrogen Utilization Efficiency in Aeolian Sandy Soil of Northeast China
- Vol. 33, Issue 5, Pages: 205-210(2019)
- 作者机构：
  
  1. 南京信息工程大学应用气象学院,南京,210044
  2. 中国科学院东北地理与农业生态研究所,哈尔滨,150081
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2019.05.030
  CLC：
- Published：2019
- 稿件说明：
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QIAO Yunfa, MIAO Shujie, LU Xinchun. Effects of Different Tillage Patterns on Maize Yield and Nitrogen Utilization Efficiency in Aeolian Sandy Soil of Northeast China[J]. 2019, 33(5): 205-210.
DOI：

QIAO Yunfa, MIAO Shujie, LU Xinchun. Effects of Different Tillage Patterns on Maize Yield and Nitrogen Utilization Efficiency in Aeolian Sandy Soil of Northeast China[J]. 2019, 33(5): 205-210. DOI： 10.13870/j.cnki.stbcxb.2019.05.030.

摘要

研究优化集成耕作模式对东北风沙土区玉米产量、肥料氮素利用率及去向的影响，探讨不同耕作模式下玉米产量及氮肥利用率之间的关系，为东北风沙土区玉米生产合理耕作模式的选择提供科学依据。在东北风沙土区传统耕作模式（CT）、优化集成耕作模式1（ITP1）和优化集成耕作模式2（ITP2）小区内设置15N标记微区框栽，以CT处理为对照，研究ITP1和ITP2耕作模式下玉米产量、氮肥利用率及肥料氮去向。结果表明：2种优化耕作模式玉米籽粒产量显著高于传统耕作模式，分别增产30.10%和15.53%。3种耕作模式氮肥利用率介于27.10%~35.46%，ITP1处理和ITP2处理氮肥利用率分别为35.46%和31.40%，比CT处理分别提高了30.85%和15.87%。与CT处理相比，IPT1处理氮肥残留量增加18.67%，损失量降低45.65%；IPT2处理肥料氮残留量介于IPT1和CT处理之间，差异不显著，IPT2氮肥损失率比CT处理降低24.36%，比IPT1增加39.17%。2种优化集成耕作模式增加玉米产量，提高氮肥利用率，减少氮肥污染，IPT1和IPT2两种优化耕作模式适合东北风沙土地区玉米种植。

Abstract

The effects of integrated tillage pattern on maize yield

utilization efficiency and direction of nitrogen fertilizer in aeolian sandy soil of northeast China were studied

and the relationships between maize yield and nitrogen utilization efficiency under different tillage patterns were discussed

which would provide scientific basis for rational tillage pattern of maize production in this region. In the aeolian sandy soil region

15N labelled micro-plots were set up in conventional tillage (CT)

integrated tillage pattern 1 (ITP1) and 2 (ITP2) treatment

and CT was taken as contrast treatment. The effects of ITP1 and ITP2 on maize yield

utilization efficiency and direction of nitrogen fertilizer were studied. The results showed that the maize grain yield significantly increased by 30.10% and 15.53% in ITP1 and ITP2 compared with that of CT

respectively. The nitrogen utilization efficiency of three tillage patterns ranged from 27.10% to 35.46%. The nitrogen use efficiency was 35.46% and 31.40% in ITP1 and ITP2

respectively

which was 30.85% and 15.87% higher than that of CT. Compared with CT

the residual nitrogen of ITP1 increased by 18.67%

and the loss rate decreased by 45.65%. The residual nitrogen of ITP2 was lower than that of ITP1

but higher than that of CT

but the difference was not significant. However

the nitrogen loss rate of ITP2 was 24.36% lower than that of CT and 39.17% higher than ITP1. Both of integrated tillage patterns increased maize yield and nitrogen use efficiency

and decreased nitrogen fertilizer pollution. Thus

IPT1 and IPT2 were potential strategies for increasing maize yield in aeolian sandy soil of northeast China.

关键词

Keywords

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