Relay cropping for sustainable intensification of agriculture across temperate regions: Crop management challenges and future research priorities

Lamichhane, Jay Ram; Alletto, Lionel; Cong, Wen‐Feng; Dayoub, Elana; Maury, Pierre; Plaza‐Bonilla, Daniel; Reckling, Moritz; Saia, Sergio; Soltani, Elias; Tison, Gilles; Debaeke, Philippe

doi:10.1016/j.fcr.2022.108795

Cited by 38 publications

(24 citation statements)

References 124 publications

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“…Despite higher LER associated with relay cropping due to producing two crops in a single season compared with a full‐season monocrop, sometimes the primary and relayed crop yields in a relay system are lower than each grown conventionally as sole‐season monocrops. This is especially true for the relayed crop, which is most often due to competition for light, nutrients, and soil moisture resources during the overlap phase of both crops (Lamichhane et al., 2023; Mohammed, Gesch, et al., 2022; Wallace et al., 1996). An advantage sometimes cited for relay cropping over sequential double cropping is an earlier planting date of the relayed crop, which at higher latitudes, where thermal growing units are more limited, can result in greater second crop yields (Gesch et al., 2014; Nelson et al., 2011; Wallace et al., 1996).…”

Section: Resilience and Adaptability To Climate Changementioning

confidence: 99%

“…For a more extensive review of limitations of relay cropping including agronomic reasons for those limitations, see Lamichhane et al. (2023).…”

Section: Resilience and Adaptability To Climate Changementioning

confidence: 99%

“…Weed control within a relay system, whether by chemical or mechanical means, depends greatly on the crop combination and row spacing (Lamichhane et al., 2023). In northern climates, good weed control, such as a burn‐down prior to planting the winter annual crop, can help reduce weed issues in the primary crop (Hoerning et al., 2020).…”

Section: Resilience and Adaptability To Climate Changementioning

confidence: 99%

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Relay cropping as an adaptive strategy to cope with climate change

et al. 2023

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Climate change and its complex interactions with crops and cropping systems present challenges to agricultural production. Resilient systems that provide food security for a burgeoning population, built by improving crops and developing new alternative cropping systems, are needed to cope with the myriad impacts climate change has on agriculture. Relay cropping is a systems strategy to sustainably intensify crop production and provide environmental benefits. Relay cropping involves interseeding one plant species into an established crop, creating a temporary spatial‐temporal overlap of the two crops. This system keeps living plant cover on the agricultural landscape most of the year, which has implications for adapting to and even mitigating climate change impacts. As global warming progresses, land area suitable for relay cropping or producing more than one crop per year will likely expand to more northerly latitudes. The following review specifically focuses on relay cropping, giving examples of how it can potentially improve agricultural system resilience and adaptability to climate change and reduce greenhouse gas emissions, while also addressing potential limitations. More research is needed to improve crop genetics, crop combinations, and management practices best suited for relay cropping to further develop systems that can adapt to changing weed and insect dynamics as well as improve nitrogen and water use under current and future predictions of climate change.

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Section: Resilience and Adaptability To Climate Changementioning

confidence: 99%

“…For a more extensive review of limitations of relay cropping including agronomic reasons for those limitations, see Lamichhane et al. (2023).…”

Section: Resilience and Adaptability To Climate Changementioning

confidence: 99%

Section: Resilience and Adaptability To Climate Changementioning

confidence: 99%

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Relay cropping as an adaptive strategy to cope with climate change

et al. 2023

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“…O Brasil é um dos maiores produtores e exportadores de alimento do mundo, e no cerrado brasileiro há grandes áreas de produção agrícola que, com o passar dos anos, foram beneficiadas com os avanços tecnológicos voltados à produção agrícola (Mores et al, 2022). Quando se trata da produção de grãos, normalmente há o cultivo de duas safras ao ano (Lamichhane et al, 2023), a primeira é chamada de safra de verão, na qual acontece o cultivo principalmente da soja (Glycine max) e, após a sua colheita os produtores normalmente cultivam milho (Zea mays), isto na segunda safra, também denominada "safrinha". Os benefícios da rotação de cultura incluem aumento da produtividade, maior eficiência na ciclagem de nutrientes e uso da terra e consequente retorno econômico, fertilidade do solo e controle de pragas (Lamichhane et al, 2023).…”

Section: Introductionunclassified

Produção de biomassa e teores de clorofila de plantas de cobertura em solos compactados

Oliveira

Menezes

Roberti

et al. 2023

RSD

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A compactação do solo é um dos entraves na produção de grãos no cerrado, podendo influenciar na produção de biomassa e alterações fisiológicas, como a produção de clorofilas, nas plantas de cobertura utilizadas para minimizar os danos da compactação e proteção do solo. Assim, objetivou-se avaliar o efeito da compactação do solo na produção de biomassa e teores de clorofila a, b e total de plantas de cobertura. O experimento foi desenvolvido em casa de vegetação, na Universidade de Rio Verde. Os tratamentos foram estabelecidos pelo esquema fatorial 4 x 2, sendo Urochloa ruziziensis, Panicum maximum – BRS zuri, milho consorciado com U. ruziziensis e milho solteiro, cultivados em solo com e sem compactação. A compactação do solo reduziu a biomassa de todas as plantas de cobertura. O milho solteiro e em consórcio com U. ruziziensis crescidos em solo sem compactação forneceram ao solo quantidade maior de biomassa superficial (massa seca da parte aérea e total), enquanto que o consórcio do milho com U. ruziziensis em solo compactado proporcionaram maior massa seca de raízes. Comparando os teores de clorofila a, b e total dentro da própria espécie observa-se que não houve aumento do teor de clorofila quanto a compactação do solo. Portanto, conclui-se que a compactação do solo prejudica a desenvolvimento da biomassa, mas não altera os teores de clorofila das plantas de cobertura.

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“…Although the connotation of 'sustainable intensification of agriculture' is often considered ambiguous [2], or even 'oxymoron' [8], this has been practised widely to avoid the harmful impact of conventional high-input intensive agriculture and the ever-widening problem of food and nutritional insecurity [9]. Many of these endeavours take the form of modification and transformations in existing cropping systems in smallholder agriculture [10,11]. The economic viability of these cropping systems under risky scenarios needs to be understood to strike a balance between profitability and externality in sustainable cropping systems, which is a prerequisite for upscaling cropping system intensification initiatives.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Economic Sustainability of Cropping Systems in the Salt-Affected Coastal Zone of West Bengal, India

Ray¹,

Mandal²,

Kabir³

et al. 2023

Preprint

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Identifying productive, profitable and less risky cropping systems is important for sustaining farm-based livelihoods in the context of climatic uncertainties and market volatility in many developing nations. Reductionist field crop research identifies the best-bet solutions based on treatment replicates at a single point in time, which may not account for price instability under climatic uncertainties and volatile markets. Keeping this in mind, we estimated productivity, profitability and weather-related risk from eleven different rice-based cropping systems (eight existing and three potential systems) in the coastal region of West Bengal, India. Information on the crop management practices, yield and prices of the component crops of these eleven cropping systems, under ’best,’ ’normal’ and ‘worst’ situations (scenario), were collected through a ques-tionnaire survey on50 farms of Gosaba Block, West Bengal, India. Irrespective of the scenarios, the rice-lathyrus systems, followed by rice-onion and rice-lentil systems recorded the lowest rice-equivalent yields and system yields. However, the highest rice-equivalent yields and system yields were recorded for rice-chilli systems, followed by rice-tomato and rice-potato-green gram systems. Per hectare total paid-out cost (TPC) of rice-tomato systems was higher, followed by rice-chilli, rice-potato-green gram and rice-potato systems. However, irrespective of seasonal conditions (best, normal and worst), rice-chilli systems gave a higher net return followed by rice-tomato and rice-potato-green gram systems. The rice-fallow system recorded the lowest value for both parameters. Under the worst seasonal conditions, the rice-onion system gave a negative net return. Under all the scenarios, the highest B:C ratio was observed for rice-chilli, rice-tomato, rice-potato-green gram and rice-potato systems. The cumulative probability distribution of the rice-tomato system showed first-degree stochastic dominance over other systems and the rice-chilli system showed second-degree stochastic dominance over the rest of the systems. Only the rice-onion system had a small chance (< 1%) of a negative net return, while the rest of the cropping systems were highly likely to get a positive net return. Taking productivity, economics, and risk assessment of different rice-based systems into account, rice-vegetable systems, especially rice-tomato and rice-chilli among the existing systems and rice-potato-green gram system among the potential systems, can be recommended for sustainable intensification in these coastal saline tracts of the region. We also discuss additional socio-economic factors explored by in-depth in-terviews with the farmers, which might influence the adoption and upscaling of these cropping systems in the region.

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Relay cropping for sustainable intensification of agriculture across temperate regions: Crop management challenges and future research priorities

Cited by 38 publications

References 124 publications

Relay cropping as an adaptive strategy to cope with climate change

Relay cropping as an adaptive strategy to cope with climate change

Produção de biomassa e teores de clorofila de plantas de cobertura em solos compactados

Assessment of Economic Sustainability of Cropping Systems in the Salt-Affected Coastal Zone of West Bengal, India

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