浙江农业科学 ›› 2024, Vol. 65 ›› Issue (6): 1325-1328.DOI: 10.16178/j.issn.0528-9017.20230472

• 粮食作物 • 上一篇    下一篇

缓控释氮肥一次性施用对舟山地区小麦产量和氮肥利用率的影响

费维1(), 方红玲1, 张浩1, 顾卡咪1, 杨梢娜2,*()   

  1. 1.岱山县农业农村局,浙江 岱山 316200
    2.舟山市农业技术推广中心,浙江 舟山 316021
  • 收稿日期:2023-05-08 出版日期:2024-06-11 发布日期:2024-06-20
  • 通讯作者: 杨梢娜(1985—),女,浙江宁波人,高级农艺师,从事土壤资源与生态研究工作,E-mail:ysn473@sina.com
  • 作者简介:费维(1987—),女,浙江岱山人,农艺师,从事植保与土肥研究工作,E-mail:feiwei704006974@163.com
  • 基金资助:
    2021年省级粮油产业团队项目—岱山“沙洋晒生”产销一体化示范推广;县科技特派员项目——番薯基腐病防治试验研究

Effects of one-time application of slow-release nitrogen fertilizer on wheat yield and nitrogen use efficiency in Zhoushan Area

FEI Wei1(), FANG Hongling1, ZHANG Hao1, GU Kami1, YANG Shaona2,*()   

  1. 1. Daishan County Bureau of Agriculture and Rural Affairs, Daishan 316200, Zhejiang
    2. Zhoushan Agricultural Technology Extension Center, Zhoushan 316021, Zhejiang
  • Received:2023-05-08 Online:2024-06-11 Published:2024-06-20

摘要:

为了探究缓释氮肥对冬小麦生产的影响,以扬麦16为材料,于2020—2022年在浙江省岱山县进行田间试验,研究不同释放期缓释氮肥对小麦产量、氮素累积量、氮肥表观利用率、农学效率及偏生产力的影响。结果显示,与常规施肥相比,2种释放期的缓控释氮肥均显著提高了小麦产量。在2020—2021年,缓控释氮肥较常规施肥显著提高了小麦氮素吸收量,而2021—2022年小麦季CF、CRU60和CRU90处理间的小麦总吸氮量无显著差异;与CF处理相比,缓控释氮肥处理的小麦氮肥表观利用率、农学效率和偏生产力分别提高3.4~6.0百分点、10.4%~19.8%和3.9%~7.5%。综上,在小麦生产上一次基施缓释期90 d的缓控释氮肥可以达到增效、省工、节本的效果。

关键词: 小麦, 产量, 氮素累积量, 氮肥利用率

Abstract:

In order to explore the effect of slow-release nitrogen fertilizer on winter wheat production, a field experiment was conducted in Daishan County, Zhejiang Province from 2020 to 2022 using Yangmai 16 as the material. The effects of slow-release nitrogen fertilizer at different release periods on wheat yield, nitrogen accumulation, apparent nitrogen use efficiency, agronomic efficiency and partial productivity were studied. The results showed that compared with conventional fertilization, the slow-release and controlled-release nitrogen fertilizer at the two release stages significantly increased the yield of wheat. From 2020 to 2021, slow-release nitrogen fertilizer significantly increased nitrogen uptake in wheat compared with conventional fertilization, but there was no significant difference in total nitrogen uptake between CF, CRU60 and CRU90 treatments in 2021-2022. Compared with CF treatment, the apparent nitrogen use efficiency, agronomic efficiency and partial productivity of wheat treated with slow-release nitrogen fertilizer increased by 3.4-6.0 percentage points, 10.4%-19.8% and 3.9%-7.5%, respectively. In conclusion, the last basic application of slow-release nitrogen fertilizer with a slow-release period of 90 days in wheat production can achieve the effects of increasing efficiency, saving labor and saving costs.

Key words: wheat, yield, nitrogen accumulation, nitrogen use efficiency

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