Pea-based cover crop mixtures have greater plant belowground biomass, but lower plant aboveground biomass than a pure stand of pea

Lavergne, Stéphanie; Vanasse, Anne; Thivierge, Marie‐Noëlle; Halde, Caroline

doi:10.1016/j.agee.2021.107657

Cited by 5 publications

(5 citation statements)

References 65 publications

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“…In the second year of the experiment, the above and belowground biomass was higher because of increasing temperature and ratio of Sudangrass growth performance. Similar results have been reported by researchers (Ileri et al, 2021;Lavergne et al, 2021;Li et al, 2021). The sole stand of common vetch had lesser aboveground biomass about 1000 kg ha -1 compared to row seeding configurations, and the highest aboveground biomass was observed in the same row seeding.…”

Section: Resultssupporting

confidence: 89%

“…Intercropping resulted in a lower plant height in common vetch in comparison to the in sole grown, mainly due to the competition with Sudangrass. Similar results have been reported by Lavergne et al (2021), Li et al (2021). Common vetch was dominant within all mixtures and row seeding configuration and might have acted as different variations for each mixture.…”

Section: Resultssupporting

confidence: 87%

“…Sudangrass presented a better growth performance in higher temperatures due to warm-season characteristics of the crop. As a result of this, competitive ability and productivity may change with the difference in temperature depending on the characteristics of the plant species (Dirks et al, 2021;Lavergne et al, 2021).…”

Section: Resultsmentioning

confidence: 99%

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ROW SEEDING CONFIGURATION REGULATES YIELD, QUALITY AND COMPETITION IN COMMON VETCH (Vicia sativa L.)-SUDANGRASS (Sorghum sudanense (Piper.) Stapf.) MIXTURE

Erkovan¹

2022

Turkish Journal of Field Crops

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Intercropping used in modern agricultural systems is designed for growing more plant species in the same field for maximized growth parameters. This two-year study was conducted to understand the effects of row seeding configuration and different Sudangrass ratios on yield, quality, and competitive ability in second crop production. Above and belowground biomass, crude protein content significantly increased in the second year, while other investigated properties decreased. Compared with other row seeding arrangements, aboveground biomass significantly increased in the same row seeding but belowground biomass, crude protein, and NDF (Neutral Detergent Fiber) contents were higher in the alternate row seeding. Plant height, ratio, ADF (Acid Detergent Fiber) content, AGRNE (Aboveground Relative Neighbor Effect), and BGRNE (Belowground Relative Neighbor Effect) were not affected by row seeding configurations. In order to maximize the utilization from the row seeding arrangements , the same row seeding arrangement can increase the aboveground biomass but mitigate belowground biomass and crude protein content. The row seeding configuration represents a potential for yield, quality, and competitive ability.

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Section: Resultssupporting

confidence: 89%

Section: Resultssupporting

confidence: 87%

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ROW SEEDING CONFIGURATION REGULATES YIELD, QUALITY AND COMPETITION IN COMMON VETCH (Vicia sativa L.)-SUDANGRASS (Sorghum sudanense (Piper.) Stapf.) MIXTURE

Erkovan¹

2022

Turkish Journal of Field Crops

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“…Despite CC root biomass production being a key input for soil ecosystem service delivery (e.g., soil stabilization, soil-erosion control, soil C accumulation, soil health improvement, and others), most CC studies do not consider, or do not measure, root biomass yield when assessing CC benefits (Blanco-Canqui et al, 2020;Ruis et al, 2020). According to the available studies on CC root biomass, the extensive review by Blanco-Canqui et al (2020), which includes brassicas, grasses, legumes, and other CC groups, reports CC root biomass yields ranging from 0.27 to 5.02 Mg ha − 1 in the top 30 cm of soil; and, in a later study, Lavergne et al (2021) in a field experiment pea-based mixtures of up to 12 CC species (grass, legumes, brassicas an others), conducted at three site-years in Quebec (Canada) after harvesting spring barley or spelt, measured mean belowground biomass among all site-years ranging from 0.69 Mg ha − 1 (1CC or pure pea stand) to 0.92 Mg ha − 1 (12 CC mixture) in the 0-30 cm soil depth; while Jackson et al (1996), in a review synthesizing data on root biomass in major terrestrial biomes, calculated a global average of total root biomass of 1.5 Mg ha − 1 in croplands and 14 Mg ha − 1 in temperate grasslands. Our study helps to provide additional data on this matter in semiarid conditions.…”

Section: Fine Root Biomassmentioning

confidence: 99%

Field Evaluation of Selected Autochthonous Herbaceous Species for Cover Crops in Mediterranean Woody Crops

Soriano¹,

Cabezas²,

Gómez³

2022

SSRN Journal

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“…However, beneficial trait combinations in such crop species mixtures can be different from the monoculture system and dependent on the companion species (Nelson & Robichaux, 1997;Lavergne et al, 2021). Rather than directly going to the field to select suitable combinations, FSP modeling can be a useful tool to first explore the potential traits that may be beneficial in the system and thus propose species or genotypes that may likely provide mutual advantages when combined.…”

Section: Exploring Mechanisms From Monoculture To Mixturesmentioning

confidence: 99%

Traits and trade-offs: dissecting nitrogen use efficiency in maize using plant modeling

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Excessive nitrogen (N) can be lost to the ecosystem and result in acidification and/or eutrophication of natural ecosystems. Reducing N application in agricultural systems is necessary to mitigate environmental pollution. Breeding for crops with a high N use efficiency can contribute to maintaining or even increasing yield at lower amounts of nitrogen fertilizer applied. Nitrogen use efficiency is co-determined by N uptake and physiological use efficiency (PE, grain biomass per unit of N taken up), to which soil processes as well as plant architectural, physiological, and developmental traits contribute. This thesis aims to quantify the effects of relevant maize traits and mechanisms to nitrogen use efficiency to support maize breeding programs for sustainable maize production.I developed and validated a functional-structural plant (FSP) model which simulates nitrogen uptake and the consequences for plant growth, as a function of a range of plant traits. I show that it is primarily the architectural and developmental traits that are relevant for N uptake and plant N use; not so much the physiological traits. Furthermore, I show that plasticity can be important not only under nitrogen-limiting conditions but also under non-limiting conditions, notably by improving nitrogen uptake. Importantly, this increase in uptake was linked to changes in the vertical distribution of roots rather than to total root system size. In addition, I show that using maize cultivars that plastically respond to plant N status by improving N uptake may mitigate any negative effects of stay-green on grain nitrogen content. Finally, I combined cluster analysis with FSP modelling to identify and quantify root system phenotypes that allow for both high yield and high N uptake. The results demonstrated trade-offs in root phenotypes for high yield and for high N uptake, between root sink strength for carbon, and root-to-leaf biomass partitioning. Using cluster analysis I identified two root phenotypes that give both high yield and high N-uptake, the combination of low root biomass and high root length density at 15 cm to 45 cm depth allowed maize to combine high yield and high N uptake.Overall, this thesis shows combining ecological principles with current breeding criteria can add new dimensions to the process of selection for new cultivars. However, we still v need to understand more about the role of trade-offs between traits to maximize plant growth while being efficient in resource use, as well as the role of phenotypic plasticity in the relationship between productivity and resource capture over a wide range of environments. Therefore, combining in silico and in vivo approaches can allow a better and more solid understanding of how individual physiological mechanisms influence both plant and crop performance.

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Pea-based cover crop mixtures have greater plant belowground biomass, but lower plant aboveground biomass than a pure stand of pea

Cited by 5 publications

References 65 publications

ROW SEEDING CONFIGURATION REGULATES YIELD, QUALITY AND COMPETITION IN COMMON VETCH (Vicia sativa L.)-SUDANGRASS (Sorghum sudanense (Piper.) Stapf.) MIXTURE

ROW SEEDING CONFIGURATION REGULATES YIELD, QUALITY AND COMPETITION IN COMMON VETCH (Vicia sativa L.)-SUDANGRASS (Sorghum sudanense (Piper.) Stapf.) MIXTURE

Field Evaluation of Selected Autochthonous Herbaceous Species for Cover Crops in Mediterranean Woody Crops

Traits and trade-offs: dissecting nitrogen use efficiency in maize using plant modeling

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