| 刊名 | Agricultural Biotechnology |
| 作者 | Yongfeng XING, Changmin WEI*, Guoli CHEN, Weimeng XU, Wanyou SONG, Guizhi LI, Wenwei ZHOU, Yanwei WAN, Enzhong ZHOU, Weifang LI |
| 作者单位 | Zhoukou Academy of Agricultural Sciences, Zhoukou 466000, China |
| DOI | DOI:10.19759/j.cnki.2164-4993.2024.02.018 |
| 年份 | 2024 |
| 刊期 | 2 |
| 页码 | 72-74 |
| 关键词 | Zhoukou Academy of Agricultural Sciences, Zhoukou 466000, China |
| 摘要 | [Objectives] This study was conducted to verify the field application effect of slow-release nitrogen fertilizer on summer maize in Shajiang black soil area by simultaneous sowing and fertilization, and explore the application scope and nitrogen metabolism mechanism, so as to lay a foundation for fertilizer reduction and efficiency improvement. [Methods] With maize variety Beiqing 340 and sulfur-coated urea as experimental materials, five nitrogen application levels were set, namely, control (C0), slow-release nitrogen 70 kg/hm2 (C70), slow-release nitrogen 140 kg/hm2 (C140), slow-release nitrogen 210 kg/hm2 (C210) and slow-release nitrogen 280 kg/hm2 (C280). The phosphorus and potassium fertilizers were all in accordance with the unified standard. [Results] With the application rate of slow-release nitrogen increasing, the nitrogen accumulation in organs increased first and then decreased after tasseling stage of maize. In order to reduce the fertilizing amount and increase efficiency, 210 kg/hm2 of slow-release nitrogen fertilizer was the best fertilizing amount for summer maize in Shajiang black soil area. [Conclusions] This study provides reference for fertilizer reduction, efficiency improvement and sustainable development of summer maize in Shajiang black soil area. |
