دورية أكاديمية
Low N apparent surplus with higher rice yield under long-term fertilizer postponing in the rice–wheat cropping system
| العنوان: | Low N apparent surplus with higher rice yield under long-term fertilizer postponing in the rice–wheat cropping system |
|---|---|
| المؤلفون: | Yan Zhou, Lei Xu, Jianwei Zhang, Weiwei Li, Yu Jiang, Songhan Wang, Yanfeng Ding, Zhenghui Liu, Ganghua Li |
| المصدر: | Crop Journal, Vol 10, Iss 4, Pp 1178-1186 (2022) |
| بيانات النشر: | KeAi Communications Co., Ltd., 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Agriculture LCC:Agriculture (General) |
| مصطلحات موضوعية: | Fertilizer postponing, N apparent surplus, Rice yield, Spikelets per panicle, Rice–wheat cropping systems, Agriculture, Agriculture (General), S1-972 |
| الوصف: | Nitrogen (N) fertilization increases rice yield, but inappropriate N fertilizer application increases N loss and the risk of environmental pollution. Short-term fertilizer postponing (FP) generally reduces N apparent surplus and increases rice yields, but the effects of long-term FP on N surplus and rice yields remain unknown. Our study was the first to investigate the impacts of long-term FP (11 years) on N apparent surplus and rice yields. FP effects in the short term (≤6 years) did not affect rice yields, whereas FP effects in the long term (>6 years) increased rice yields by 13.9% compared with conventional fertilization (CF). FP did not affect panicles per unit area, 1000-kernel weight, and filled-kernel rate, but spikelets per panicle increased over time due to spikelet formation stimulation. FP also reduced the N apparent surplus over time more strongly than CF owing to higher N accumulation and N utilization efficiency. FP effects in the long term also significantly increased soil organic matter, total N, and NH4+-N content. Our results were supported by a pot experiment, showing that rice yields in soils with a history of FP were significantly higher than those for soils without a history of FP, indicating that FP increased rice yields more strongly in later years mainly because of soil quality improvement. Our findings suggest that long-term FP can reduce N loss while increasing rice yields by improving soil quality. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2214-5141 87448580 |
| العلاقة: | http://www.sciencedirect.com/science/article/pii/S2214514122000307Test; https://doaj.org/toc/2214-5141Test |
| DOI: | 10.1016/j.cj.2022.01.001 |
| الوصول الحر: | https://doaj.org/article/87448580b4304e79b0ec1f2015047a31Test |
| رقم الانضمام: | edsdoj.87448580b4304e79b0ec1f2015047a31 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 22145141 87448580 |
|---|---|
| DOI: | 10.1016/j.cj.2022.01.001 |