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| DOI | 10.1139/cjps-2023-0177 |
| Cropping system typologies perform differently under climate stress in Manitoba, Canada: multi-criteria assessment | |
| 发表日期 | 2024 |
| ISSN | 0008-4220 |
| EISSN | 1918-1833 |
| 英文摘要 | Information is required to understand how novel biodiversity strategies can improve cropping system resilience to climate change. A business as usual (BAU) rotation (wheat-canola-wheat-soybean) was compared with a warm -season crop (WS) rotation (corn-sunflower-dry bean-canola); a biodiverse (BD) rotation (fall rye with cover crop- corn/soybean intercrop-- pea/canola intercrop-green fallow mixture); a perennial grain (Kernza) rotation (Kernza grain intermediate wheatgrass); and an organic (ORG) rotation (millet -green fallow mixture -wheat). Drought conditions prevailed in both study years. The BAU rotation had the lowest average yield (1821 kg ha-1 - 1 compared with 2533 and 3083 kg ha-1 - 1 for the BD and WS rotations, respectively), less post -harvest residual biomass, and a lower net return than the WS rotation. The WS rotation was limited by herbicide -resistant weeds in dry beans. Kernza seed yield was five times lower than for spring wheat. ORG wheat yielded the same as other wheat and had a higher net return. Live roots days, a measure of soil health potential, were 95 for the BAU rotation and 174 and 113 for the BD and WS rotations, respectively; the most were recorded for Kernza (365). Seasonal crop growth duration was increased by including Kernza and fall rye for early season growth, and corn, sunflower, a corn-soybean intercrop, a cover crop, and fall -seeded rye for late season growth. WS and BD rotations outperformed the BAU rotation and the BD system accomplished this with half the N fertilizer. Results demonstrate the potential of biodiverse rotations; barriers to their adoption should be addressed. |
| 英文关键词 | Kernza intermediate wheatgrass; cover crops; fall cereals; intercropping; regenerative agriculture; organic cropping |
| 语种 | 英语 |
| WOS研究方向 | Agriculture ; Plant Sciences |
| WOS类目 | Agronomy ; Plant Sciences |
| WOS记录号 | WOS:001237706600001 |
| 来源期刊 | CANADIAN JOURNAL OF PLANT SCIENCE
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/299727 |
| 作者单位 | University of Manitoba; University of Guelph |
| 推荐引用方式 GB/T 7714 | . Cropping system typologies perform differently under climate stress in Manitoba, Canada: multi-criteria assessment[J],2024. |
| APA | (2024).Cropping system typologies perform differently under climate stress in Manitoba, Canada: multi-criteria assessment.CANADIAN JOURNAL OF PLANT SCIENCE. |
| MLA | "Cropping system typologies perform differently under climate stress in Manitoba, Canada: multi-criteria assessment".CANADIAN JOURNAL OF PLANT SCIENCE (2024). |
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