混合栽培品种在全球范围内提高了作物产量和临时产量稳定性。荟萃分析

IF 6.4 1区 农林科学 Q1 AGRONOMY
Tiantian Huang, Thomas F. Döring, Xiaoru Zhao, Jacob Weiner, Pengfei Dang, Maoxue Zhang, Miaomiao Zhang, Kadambot H. M. Siddique, Bernhard Schmid, Xiaoliang Qin
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引用次数: 0

摘要

混交栽培品种被认为是增加多样性从而提高植物产量的一种方法,但我们对混交栽培品种对作物病害和资源利用效率的影响的了解仍然很片面。我们进行了一项荟萃分析,以评估与 12 种主要作物的单一栽培相比,混合栽培对作物产量、产量稳定性、资源利用效率和病害严重程度的影响。我们发现,总体而言,混合栽培品种可使作物产量提高 3.82%。水稻混种增产幅度最大(+16.1%),其次是玉米(+8.5%),而大麦(+0.9%)和高粱(无增产)的混种增产幅度最小。时间产量稳定性随混作品种数量的增加而提高。总体而言,混合栽培品种可使作物生物量、叶面积指数、光合速率和水分利用效率分别增加 5.1%、7.2%、8.5% 和 4.3%,病害发生率降低 24.1%。在纬度较低、年平均气温较高和年平均降水量较多的地区进行的研究中,混合栽培品种在减轻病害和提高产量方面更为有效。我们的研究是对以往研究的补充和完善,表明与全球范围内的单一栽培相比,混合栽培能减少作物因病害造成的损失,提高资源利用效率。我们的结论是,有针对性地使用栽培品种混合物并辅以适当的管理措施,可以在保持高产的同时减少资源和农药投入,从而促进农业的可持续发展和高产。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Cultivar mixtures increase crop yields and temporal yield stability globally. A meta-analysis

Cultivar mixtures increase crop yields and temporal yield stability globally. A meta-analysis

Cultivar mixtures have been proposed as a way to increase diversity and thereby improve plant production, but our understanding of the effects of mixing cultivars on crop diseases and resource-use efficiency remains fragmentary. We performed a meta-analysis to assess the effects of cultivar mixtures on crop yield, yield stability, resource-use efficiency, and disease severity compared with monocultures of twelve major crops. We found that, overall, mixing of cultivars increased crop yield by 3.82%. Yield gains from mixing cultivars were highest in rice (+16.1%), followed by maize (+8.5%), and were lowest in barley (+0.9%) and sorghum (no increase). Temporal yield stability increased with the number of cultivars in the mixtures. Overall, mixing cultivars increased crop biomass, leaf area index, photosynthetic rate, and Water-use efficiency by 5.1, 7.2, 8.5 and 4.3%, respectively, and decreased disease incidence by 24.1%. Cultivar mixtures were more effective in mitigating diseases and increasing yields in studies performed at lower latitudes, higher mean annual temperatures, and higher mean annual precipitation. Our study complements and adds to previous research, indicating that cultivar mixtures reduce crop losses to disease and enhance resource-use efficiency compared with monocultures globally. We conclude that the targeted use of cultivar mixtures with appropriate management practices can reduce resource and pesticide inputs while maintaining high yields, thereby promoting sustainable and productive agriculture.

Graphical abstract

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来源期刊
Agronomy for Sustainable Development
Agronomy for Sustainable Development 农林科学-农艺学
CiteScore
10.70
自引率
8.20%
发文量
108
审稿时长
3 months
期刊介绍: Agronomy for Sustainable Development (ASD) is a peer-reviewed scientific journal of international scope, dedicated to publishing original research articles, review articles, and meta-analyses aimed at improving sustainability in agricultural and food systems. The journal serves as a bridge between agronomy, cropping, and farming system research and various other disciplines including ecology, genetics, economics, and social sciences. ASD encourages studies in agroecology, participatory research, and interdisciplinary approaches, with a focus on systems thinking applied at different scales from field to global levels. Research articles published in ASD should present significant scientific advancements compared to existing knowledge, within an international context. Review articles should critically evaluate emerging topics, and opinion papers may also be submitted as reviews. Meta-analysis articles should provide clear contributions to resolving widely debated scientific questions.
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