Hole fertilization in the root zone facilitates maize yield and nitrogen utilization by mitigating potential N loss and improving mineral N accumulation
Reducing environmental impacts and improving N utilization are critical to ensuring food security in China. Although root-zone fertilization has been considered an effective strategy to improve nitrogen use efficiency (NUE), the effect of controlled-release urea (CRU) applied in conjunction with nor...
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KeAi Communications Co., Ltd.
2023-04-01
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| Series: | Journal of Integrative Agriculture |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095311922002350 |
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| author | Wen-xuan SHI Qian ZHANG Lan-tao LI Jin-fang TAN Ruo-han XIE Yi-lun WANG |
| author_facet | Wen-xuan SHI Qian ZHANG Lan-tao LI Jin-fang TAN Ruo-han XIE Yi-lun WANG |
| author_sort | Wen-xuan SHI |
| collection | DOAJ |
| description | Reducing environmental impacts and improving N utilization are critical to ensuring food security in China. Although root-zone fertilization has been considered an effective strategy to improve nitrogen use efficiency (NUE), the effect of controlled-release urea (CRU) applied in conjunction with normal urea in this mode is unclear. Therefore, a 3-year field experiment was conducted using a no-N-added as a control and two fertilization modes (FF, furrow fertilization by manual trenching, i.e., farmer fertilizer practice; HF: root-zone hole fertilization by point broadcast manually) at 210 kg N ha–1 (controlled-release:normal fertilizer=5:5), along with a 1-year in-situ microplot experiment. Maize yield, NUE and N loss were investigated under different fertilization modes. The results showed that compared with FF, HF improved the average yield and N recovery efficiency by 8.5 and 22.3% over three years, respectively. HF had a greater potential for application than FF treatment, which led to increases in dry matter accumulation, total N uptake, SPAD value and LAI. In addition, HF remarkably enhanced the accumulation of 15N derived from fertilizer by 17.2% compared with FF, which in turn reduced the potential loss of 15N by 43.8%. HF increased the accumulation of N in the tillage layer of soils at harvest for potential use in the subsequent season relative to FF. Hence, HF could match the N requirement of summer maize, sustain yield, improve NUE and reduce environmental N loss simultaneously. Overall, root-zone hole fertilization with blended CRU and normal urea can represent an effective and promising practice to achieve environmental integrity and food security on the North China Plain, which deserves further application and investigation. |
| format | Article |
| id | doaj-art-d94c466af772453fbf313b79a26d71c0 |
| institution | Kabale University |
| issn | 2095-3119 |
| language | English |
| publishDate | 2023-04-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Integrative Agriculture |
| spelling | doaj-art-d94c466af772453fbf313b79a26d71c02025-08-20T03:58:55ZengKeAi Communications Co., Ltd.Journal of Integrative Agriculture2095-31192023-04-012241184119810.1016/j.jia.2022.09.018Hole fertilization in the root zone facilitates maize yield and nitrogen utilization by mitigating potential N loss and improving mineral N accumulationWen-xuan SHI0Qian ZHANG1Lan-tao LI2Jin-fang TAN3Ruo-han XIE4Yi-lun WANG5College of Resources and Environment, Henan Agricultural University, Zhengzhou 450002, P.R.ChinaCollege of Resources and Environment, Henan Agricultural University, Zhengzhou 450002, P.R.ChinaCollege of Resources and Environment, Henan Agricultural University, Zhengzhou 450002, P.R.ChinaSchool of Agriculture, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, P.R.ChinaSchool of Agriculture, Shenzhen Campus of Sun Yat-sen University, Shenzhen 518107, P.R.China; Correspondence XIE Ruo-han, Tel: +86-20-39339235College of Resources and Environment, Henan Agricultural University, Zhengzhou 450002, P.R.China; Correspondence WANG Yi-lun, Tel: +86-371-63555504Reducing environmental impacts and improving N utilization are critical to ensuring food security in China. Although root-zone fertilization has been considered an effective strategy to improve nitrogen use efficiency (NUE), the effect of controlled-release urea (CRU) applied in conjunction with normal urea in this mode is unclear. Therefore, a 3-year field experiment was conducted using a no-N-added as a control and two fertilization modes (FF, furrow fertilization by manual trenching, i.e., farmer fertilizer practice; HF: root-zone hole fertilization by point broadcast manually) at 210 kg N ha–1 (controlled-release:normal fertilizer=5:5), along with a 1-year in-situ microplot experiment. Maize yield, NUE and N loss were investigated under different fertilization modes. The results showed that compared with FF, HF improved the average yield and N recovery efficiency by 8.5 and 22.3% over three years, respectively. HF had a greater potential for application than FF treatment, which led to increases in dry matter accumulation, total N uptake, SPAD value and LAI. In addition, HF remarkably enhanced the accumulation of 15N derived from fertilizer by 17.2% compared with FF, which in turn reduced the potential loss of 15N by 43.8%. HF increased the accumulation of N in the tillage layer of soils at harvest for potential use in the subsequent season relative to FF. Hence, HF could match the N requirement of summer maize, sustain yield, improve NUE and reduce environmental N loss simultaneously. Overall, root-zone hole fertilization with blended CRU and normal urea can represent an effective and promising practice to achieve environmental integrity and food security on the North China Plain, which deserves further application and investigation.http://www.sciencedirect.com/science/article/pii/S2095311922002350maize yieldhole fertilizationNUE15N-labeled blended urea15N loss |
| spellingShingle | Wen-xuan SHI Qian ZHANG Lan-tao LI Jin-fang TAN Ruo-han XIE Yi-lun WANG Hole fertilization in the root zone facilitates maize yield and nitrogen utilization by mitigating potential N loss and improving mineral N accumulation Journal of Integrative Agriculture maize yield hole fertilization NUE 15N-labeled blended urea 15N loss |
| title | Hole fertilization in the root zone facilitates maize yield and nitrogen utilization by mitigating potential N loss and improving mineral N accumulation |
| title_full | Hole fertilization in the root zone facilitates maize yield and nitrogen utilization by mitigating potential N loss and improving mineral N accumulation |
| title_fullStr | Hole fertilization in the root zone facilitates maize yield and nitrogen utilization by mitigating potential N loss and improving mineral N accumulation |
| title_full_unstemmed | Hole fertilization in the root zone facilitates maize yield and nitrogen utilization by mitigating potential N loss and improving mineral N accumulation |
| title_short | Hole fertilization in the root zone facilitates maize yield and nitrogen utilization by mitigating potential N loss and improving mineral N accumulation |
| title_sort | hole fertilization in the root zone facilitates maize yield and nitrogen utilization by mitigating potential n loss and improving mineral n accumulation |
| topic | maize yield hole fertilization NUE 15N-labeled blended urea 15N loss |
| url | http://www.sciencedirect.com/science/article/pii/S2095311922002350 |
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