Vicia sativa 3,081 claims

species · family Fabaceae · green plant · NCBI Taxonomy ↗

Common name: common vetch — Also written in claims: common vetch · oat/common vetch · V.sativa · SPRING VETCH · Vetch · narrow-leaf vetch

Listed here with its subspecies, varieties and cultivar groups: Vicia sativa subsp. nigra (140 claims), Vicia sativa subsp. macrocarpa (29 claims), Vicia sativa subsp. amphicarpa (19 claims), Vicia sativa subsp. sativa (17 claims), Vicia sativa subsp. cordata (7 claims), Vicia sativa var. angustifolia (2 claims), Vicia sativa var. sativa (2 claims)

138 spellings

Questions studied on this organism38 questions1 with results that differ72 papers

Vicia sativaDidier Descouens · CC BY-SA 4.0 · Wikimedia Commons ↗

3,081 claims

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Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

In the mixed sowing system oat yields were comparable to sole oat, with a slight increase in 2023, while common vetch yields were notably reduced.

Taxon: oat/common vetchVicia sativa Avena sativae0
Treatment: mixed sowing systeme1
Outcome: oat yieldse1
Direction: comparablee1
Qualifier: slight increase in 2023e1
Comparator: sole oat cultivatione1

Verbatim

e0
“oat/common vetch mixtures under three nitrogen (N) applications”
✓ located verbatim in the source · abstract, characters 274–337

e1
“oat yields in the mixed sowing system were comparable to those in sole oat cultivation, showing a slight increase in 2023”
✓ located verbatim in the source · abstract, characters 496–617

e2
“common vetch yields in the mixed sowing were notably reduced”
✓ located verbatim in the source · abstract, characters 631–691

Title

Seed mixture of oat and common vetch improved yields and water productivity by belowground root niche complementarity

Qianhu Ma; Yuying Shen; Zikui Wang Agricultural Water Management 2026. doi:10.1016/j.agwat.2026.110261

Other claims from this paper (19)

Intervention effect Mixed sowing increased yields by 7.6% compared with sole oat under conventional N.
Intervention effect Mixed sowing increased yields by 44.6% compared with sole oat under half N.
Intervention effect Mixed sowing increased yields by 22.6% compared with sole oat under no N.
Intervention effect Mixed sowing increased crude protein yields by 32.5% compared with sole oat under conventional N.
Intervention effect Mixed sowing increased crude protein yields by 142.0% compared with sole oat under half N.
Intervention effect Mixed sowing increased crude protein yields by 113.6% compared with sole oat under no N.
Intervention effect The mixed system increased yields by 26.4% compared with sole common vetch under conventional N.
Intervention effect The mixed system increased yields by 10.1% compared with sole common vetch under half N.
Intervention effect Mixed sowing decreased soil water content by 9.5% compared with sole oat under conventional N.
Intervention effect Mixed sowing decreased soil water content by 6.2% compared with sole oat under half N.
Intervention effect Mixed sowing decreased soil water content by 6.4% compared with sole oat under no N.
Intervention effect Oat/common vetch mixtures enhanced root length density in the 20–60 cm soil layer, and a strong negative correlation between root length density and soil water content indicated improved root-water complementarity.
Intervention effect Water productivity in the mixed system improved by 45.8% under half N.
Intervention effect Water productivity in the mixed system improved by 12.2% under no N.
Intervention effect Crude protein water productivity in the mixed system rose by 22.2% under conventional N.
Intervention effect Crude protein water productivity in the mixed system rose by 138.5% under half N.
Intervention effect Crude protein water productivity in the mixed system rose by 93.1% under no N.
Mechanism The authors attribute the highest dry matter and protein water productivity of the half-N mixture to biological nitrogen fixation and balanced nutrient-water interactions.
Recommendation The authors conclude that moderate N input in oat/common vetch mixtures maximizes productivity and resource efficiency.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mixed sowing increased yields by 7.6% compared with sole oat under conventional N.

Taxon: oat/common vetchVicia sativa Avena sativae0
Treatment: mixed sowinge1
Outcome: yieldse1
Direction: increasede1
Value: 7.6%e1
Qualifier: CNe1
Comparator: sole oate1

Verbatim

e0
“oat/common vetch mixtures under three nitrogen (N) applications”
✓ located verbatim in the source · abstract, characters 274–337

e1
“Compared to sole oat, mixed sowing increased yields by 7.6%, 44.6%, and 22.6% under CN, HN, and NN conditions, respectively”
✓ located verbatim in the source · abstract, characters 693–816

Title

Seed mixture of oat and common vetch improved yields and water productivity by belowground root niche complementarity

Qianhu Ma; Yuying Shen; Zikui Wang Agricultural Water Management 2026. doi:10.1016/j.agwat.2026.110261

Other claims from this paper (19)

Intervention effect In the mixed sowing system oat yields were comparable to sole oat, with a slight increase in 2023, while common vetch yields were notably reduced.
Intervention effect Mixed sowing increased yields by 44.6% compared with sole oat under half N.
Intervention effect Mixed sowing increased yields by 22.6% compared with sole oat under no N.
Intervention effect Mixed sowing increased crude protein yields by 32.5% compared with sole oat under conventional N.
Intervention effect Mixed sowing increased crude protein yields by 142.0% compared with sole oat under half N.
Intervention effect Mixed sowing increased crude protein yields by 113.6% compared with sole oat under no N.
Intervention effect The mixed system increased yields by 26.4% compared with sole common vetch under conventional N.
Intervention effect The mixed system increased yields by 10.1% compared with sole common vetch under half N.
Intervention effect Mixed sowing decreased soil water content by 9.5% compared with sole oat under conventional N.
Intervention effect Mixed sowing decreased soil water content by 6.2% compared with sole oat under half N.
Intervention effect Mixed sowing decreased soil water content by 6.4% compared with sole oat under no N.
Intervention effect Oat/common vetch mixtures enhanced root length density in the 20–60 cm soil layer, and a strong negative correlation between root length density and soil water content indicated improved root-water complementarity.
Intervention effect Water productivity in the mixed system improved by 45.8% under half N.
Intervention effect Water productivity in the mixed system improved by 12.2% under no N.
Intervention effect Crude protein water productivity in the mixed system rose by 22.2% under conventional N.
Intervention effect Crude protein water productivity in the mixed system rose by 138.5% under half N.
Intervention effect Crude protein water productivity in the mixed system rose by 93.1% under no N.
Mechanism The authors attribute the highest dry matter and protein water productivity of the half-N mixture to biological nitrogen fixation and balanced nutrient-water interactions.
Recommendation The authors conclude that moderate N input in oat/common vetch mixtures maximizes productivity and resource efficiency.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mixed sowing increased yields by 44.6% compared with sole oat under half N.

Taxon: oat/common vetchVicia sativa Avena sativae0
Treatment: mixed sowinge1
Outcome: yieldse1
Direction: increasede1
Value: 44.6%e1
Qualifier: HNe1
Comparator: sole oate1

Verbatim

e0
“oat/common vetch mixtures under three nitrogen (N) applications”
✓ located verbatim in the source · abstract, characters 274–337

e1
“Compared to sole oat, mixed sowing increased yields by 7.6%, 44.6%, and 22.6% under CN, HN, and NN conditions, respectively”
✓ located verbatim in the source · abstract, characters 693–816

Title

Seed mixture of oat and common vetch improved yields and water productivity by belowground root niche complementarity

Qianhu Ma; Yuying Shen; Zikui Wang Agricultural Water Management 2026. doi:10.1016/j.agwat.2026.110261

Other claims from this paper (19)

Intervention effect In the mixed sowing system oat yields were comparable to sole oat, with a slight increase in 2023, while common vetch yields were notably reduced.
Intervention effect Mixed sowing increased yields by 7.6% compared with sole oat under conventional N.
Intervention effect Mixed sowing increased yields by 22.6% compared with sole oat under no N.
Intervention effect Mixed sowing increased crude protein yields by 32.5% compared with sole oat under conventional N.
Intervention effect Mixed sowing increased crude protein yields by 142.0% compared with sole oat under half N.
Intervention effect Mixed sowing increased crude protein yields by 113.6% compared with sole oat under no N.
Intervention effect The mixed system increased yields by 26.4% compared with sole common vetch under conventional N.
Intervention effect The mixed system increased yields by 10.1% compared with sole common vetch under half N.
Intervention effect Mixed sowing decreased soil water content by 9.5% compared with sole oat under conventional N.
Intervention effect Mixed sowing decreased soil water content by 6.2% compared with sole oat under half N.
Intervention effect Mixed sowing decreased soil water content by 6.4% compared with sole oat under no N.
Intervention effect Oat/common vetch mixtures enhanced root length density in the 20–60 cm soil layer, and a strong negative correlation between root length density and soil water content indicated improved root-water complementarity.
Intervention effect Water productivity in the mixed system improved by 45.8% under half N.
Intervention effect Water productivity in the mixed system improved by 12.2% under no N.
Intervention effect Crude protein water productivity in the mixed system rose by 22.2% under conventional N.
Intervention effect Crude protein water productivity in the mixed system rose by 138.5% under half N.
Intervention effect Crude protein water productivity in the mixed system rose by 93.1% under no N.
Mechanism The authors attribute the highest dry matter and protein water productivity of the half-N mixture to biological nitrogen fixation and balanced nutrient-water interactions.
Recommendation The authors conclude that moderate N input in oat/common vetch mixtures maximizes productivity and resource efficiency.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mixed sowing increased yields by 22.6% compared with sole oat under no N.

Taxon: oat/common vetchVicia sativa Avena sativae0
Treatment: mixed sowinge1
Outcome: yieldse1
Direction: increasede1
Value: 22.6%e1
Qualifier: NNe1
Comparator: sole oate1

Verbatim

e0
“oat/common vetch mixtures under three nitrogen (N) applications”
✓ located verbatim in the source · abstract, characters 274–337

e1
“Compared to sole oat, mixed sowing increased yields by 7.6%, 44.6%, and 22.6% under CN, HN, and NN conditions, respectively”
✓ located verbatim in the source · abstract, characters 693–816

Title

Seed mixture of oat and common vetch improved yields and water productivity by belowground root niche complementarity

Qianhu Ma; Yuying Shen; Zikui Wang Agricultural Water Management 2026. doi:10.1016/j.agwat.2026.110261

Other claims from this paper (19)

Intervention effect In the mixed sowing system oat yields were comparable to sole oat, with a slight increase in 2023, while common vetch yields were notably reduced.
Intervention effect Mixed sowing increased yields by 7.6% compared with sole oat under conventional N.
Intervention effect Mixed sowing increased yields by 44.6% compared with sole oat under half N.
Intervention effect Mixed sowing increased crude protein yields by 32.5% compared with sole oat under conventional N.
Intervention effect Mixed sowing increased crude protein yields by 142.0% compared with sole oat under half N.
Intervention effect Mixed sowing increased crude protein yields by 113.6% compared with sole oat under no N.
Intervention effect The mixed system increased yields by 26.4% compared with sole common vetch under conventional N.
Intervention effect The mixed system increased yields by 10.1% compared with sole common vetch under half N.
Intervention effect Mixed sowing decreased soil water content by 9.5% compared with sole oat under conventional N.
Intervention effect Mixed sowing decreased soil water content by 6.2% compared with sole oat under half N.
Intervention effect Mixed sowing decreased soil water content by 6.4% compared with sole oat under no N.
Intervention effect Oat/common vetch mixtures enhanced root length density in the 20–60 cm soil layer, and a strong negative correlation between root length density and soil water content indicated improved root-water complementarity.
Intervention effect Water productivity in the mixed system improved by 45.8% under half N.
Intervention effect Water productivity in the mixed system improved by 12.2% under no N.
Intervention effect Crude protein water productivity in the mixed system rose by 22.2% under conventional N.
Intervention effect Crude protein water productivity in the mixed system rose by 138.5% under half N.
Intervention effect Crude protein water productivity in the mixed system rose by 93.1% under no N.
Mechanism The authors attribute the highest dry matter and protein water productivity of the half-N mixture to biological nitrogen fixation and balanced nutrient-water interactions.
Recommendation The authors conclude that moderate N input in oat/common vetch mixtures maximizes productivity and resource efficiency.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mixed sowing increased crude protein yields by 32.5% compared with sole oat under conventional N.

Taxon: oat/common vetchVicia sativa Avena sativae0
Treatment: mixed sowinge1
Outcome: crude protein yieldse2
Direction: incrementse2
Value: 32.5%e2
Qualifier: CNe1
Comparator: sole oate1

Verbatim

e0
“oat/common vetch mixtures under three nitrogen (N) applications”
✓ located verbatim in the source · abstract, characters 274–337

e1
“Compared to sole oat, mixed sowing increased yields by 7.6%, 44.6%, and 22.6% under CN, HN, and NN conditions, respectively”
✓ located verbatim in the source · abstract, characters 693–816

e2
“crude protein yields saw increments of 32.5%, 142.0%, and 113.6%”
✓ located verbatim in the source · abstract, characters 824–888

Title

Seed mixture of oat and common vetch improved yields and water productivity by belowground root niche complementarity

Qianhu Ma; Yuying Shen; Zikui Wang Agricultural Water Management 2026. doi:10.1016/j.agwat.2026.110261

Other claims from this paper (19)

Intervention effect In the mixed sowing system oat yields were comparable to sole oat, with a slight increase in 2023, while common vetch yields were notably reduced.
Intervention effect Mixed sowing increased yields by 7.6% compared with sole oat under conventional N.
Intervention effect Mixed sowing increased yields by 44.6% compared with sole oat under half N.
Intervention effect Mixed sowing increased yields by 22.6% compared with sole oat under no N.
Intervention effect Mixed sowing increased crude protein yields by 142.0% compared with sole oat under half N.
Intervention effect Mixed sowing increased crude protein yields by 113.6% compared with sole oat under no N.
Intervention effect The mixed system increased yields by 26.4% compared with sole common vetch under conventional N.
Intervention effect The mixed system increased yields by 10.1% compared with sole common vetch under half N.
Intervention effect Mixed sowing decreased soil water content by 9.5% compared with sole oat under conventional N.
Intervention effect Mixed sowing decreased soil water content by 6.2% compared with sole oat under half N.
Intervention effect Mixed sowing decreased soil water content by 6.4% compared with sole oat under no N.
Intervention effect Oat/common vetch mixtures enhanced root length density in the 20–60 cm soil layer, and a strong negative correlation between root length density and soil water content indicated improved root-water complementarity.
Intervention effect Water productivity in the mixed system improved by 45.8% under half N.
Intervention effect Water productivity in the mixed system improved by 12.2% under no N.
Intervention effect Crude protein water productivity in the mixed system rose by 22.2% under conventional N.
Intervention effect Crude protein water productivity in the mixed system rose by 138.5% under half N.
Intervention effect Crude protein water productivity in the mixed system rose by 93.1% under no N.
Mechanism The authors attribute the highest dry matter and protein water productivity of the half-N mixture to biological nitrogen fixation and balanced nutrient-water interactions.
Recommendation The authors conclude that moderate N input in oat/common vetch mixtures maximizes productivity and resource efficiency.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mixed sowing increased crude protein yields by 142.0% compared with sole oat under half N.

Taxon: oat/common vetchVicia sativa Avena sativae0
Treatment: mixed sowinge1
Outcome: crude protein yieldse2
Direction: incrementse2
Value: 142.0%e2
Qualifier: HNe1
Comparator: sole oate1

Verbatim

e0
“oat/common vetch mixtures under three nitrogen (N) applications”
✓ located verbatim in the source · abstract, characters 274–337

e1
“Compared to sole oat, mixed sowing increased yields by 7.6%, 44.6%, and 22.6% under CN, HN, and NN conditions, respectively”
✓ located verbatim in the source · abstract, characters 693–816

e2
“crude protein yields saw increments of 32.5%, 142.0%, and 113.6%”
✓ located verbatim in the source · abstract, characters 824–888

Title

Seed mixture of oat and common vetch improved yields and water productivity by belowground root niche complementarity

Qianhu Ma; Yuying Shen; Zikui Wang Agricultural Water Management 2026. doi:10.1016/j.agwat.2026.110261

Other claims from this paper (19)

Intervention effect In the mixed sowing system oat yields were comparable to sole oat, with a slight increase in 2023, while common vetch yields were notably reduced.
Intervention effect Mixed sowing increased yields by 7.6% compared with sole oat under conventional N.
Intervention effect Mixed sowing increased yields by 44.6% compared with sole oat under half N.
Intervention effect Mixed sowing increased yields by 22.6% compared with sole oat under no N.
Intervention effect Mixed sowing increased crude protein yields by 32.5% compared with sole oat under conventional N.
Intervention effect Mixed sowing increased crude protein yields by 113.6% compared with sole oat under no N.
Intervention effect The mixed system increased yields by 26.4% compared with sole common vetch under conventional N.
Intervention effect The mixed system increased yields by 10.1% compared with sole common vetch under half N.
Intervention effect Mixed sowing decreased soil water content by 9.5% compared with sole oat under conventional N.
Intervention effect Mixed sowing decreased soil water content by 6.2% compared with sole oat under half N.
Intervention effect Mixed sowing decreased soil water content by 6.4% compared with sole oat under no N.
Intervention effect Oat/common vetch mixtures enhanced root length density in the 20–60 cm soil layer, and a strong negative correlation between root length density and soil water content indicated improved root-water complementarity.
Intervention effect Water productivity in the mixed system improved by 45.8% under half N.
Intervention effect Water productivity in the mixed system improved by 12.2% under no N.
Intervention effect Crude protein water productivity in the mixed system rose by 22.2% under conventional N.
Intervention effect Crude protein water productivity in the mixed system rose by 138.5% under half N.
Intervention effect Crude protein water productivity in the mixed system rose by 93.1% under no N.
Mechanism The authors attribute the highest dry matter and protein water productivity of the half-N mixture to biological nitrogen fixation and balanced nutrient-water interactions.
Recommendation The authors conclude that moderate N input in oat/common vetch mixtures maximizes productivity and resource efficiency.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mixed sowing increased crude protein yields by 113.6% compared with sole oat under no N.

Taxon: oat/common vetchVicia sativa Avena sativae0
Treatment: mixed sowinge1
Outcome: crude protein yieldse2
Direction: incrementse2
Value: 113.6%e2
Qualifier: NNe1
Comparator: sole oate1

Verbatim

e0
“oat/common vetch mixtures under three nitrogen (N) applications”
✓ located verbatim in the source · abstract, characters 274–337

e1
“Compared to sole oat, mixed sowing increased yields by 7.6%, 44.6%, and 22.6% under CN, HN, and NN conditions, respectively”
✓ located verbatim in the source · abstract, characters 693–816

e2
“crude protein yields saw increments of 32.5%, 142.0%, and 113.6%”
✓ located verbatim in the source · abstract, characters 824–888

Title

Seed mixture of oat and common vetch improved yields and water productivity by belowground root niche complementarity

Qianhu Ma; Yuying Shen; Zikui Wang Agricultural Water Management 2026. doi:10.1016/j.agwat.2026.110261

Other claims from this paper (19)

Intervention effect In the mixed sowing system oat yields were comparable to sole oat, with a slight increase in 2023, while common vetch yields were notably reduced.
Intervention effect Mixed sowing increased yields by 7.6% compared with sole oat under conventional N.
Intervention effect Mixed sowing increased yields by 44.6% compared with sole oat under half N.
Intervention effect Mixed sowing increased yields by 22.6% compared with sole oat under no N.
Intervention effect Mixed sowing increased crude protein yields by 32.5% compared with sole oat under conventional N.
Intervention effect Mixed sowing increased crude protein yields by 142.0% compared with sole oat under half N.
Intervention effect The mixed system increased yields by 26.4% compared with sole common vetch under conventional N.
Intervention effect The mixed system increased yields by 10.1% compared with sole common vetch under half N.
Intervention effect Mixed sowing decreased soil water content by 9.5% compared with sole oat under conventional N.
Intervention effect Mixed sowing decreased soil water content by 6.2% compared with sole oat under half N.
Intervention effect Mixed sowing decreased soil water content by 6.4% compared with sole oat under no N.
Intervention effect Oat/common vetch mixtures enhanced root length density in the 20–60 cm soil layer, and a strong negative correlation between root length density and soil water content indicated improved root-water complementarity.
Intervention effect Water productivity in the mixed system improved by 45.8% under half N.
Intervention effect Water productivity in the mixed system improved by 12.2% under no N.
Intervention effect Crude protein water productivity in the mixed system rose by 22.2% under conventional N.
Intervention effect Crude protein water productivity in the mixed system rose by 138.5% under half N.
Intervention effect Crude protein water productivity in the mixed system rose by 93.1% under no N.
Mechanism The authors attribute the highest dry matter and protein water productivity of the half-N mixture to biological nitrogen fixation and balanced nutrient-water interactions.
Recommendation The authors conclude that moderate N input in oat/common vetch mixtures maximizes productivity and resource efficiency.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The mixed system increased yields by 26.4% compared with sole common vetch under conventional N.

Taxon: oat/common vetchVicia sativa Avena sativae0
Treatment: mixed systeme1
Outcome: yieldse1
Direction: increasede1
Value: 26.4%e1
Qualifier: CNe1
Comparator: sole common vetche1

Verbatim

e0
“oat/common vetch mixtures under three nitrogen (N) applications”
✓ located verbatim in the source · abstract, characters 274–337

e1
“the mixed system only increased yields by 26.4% and 10.1% under CN and HN conditions compared to sole common vetch”
✓ located verbatim in the source · abstract, characters 903–1017

Title

Seed mixture of oat and common vetch improved yields and water productivity by belowground root niche complementarity

Qianhu Ma; Yuying Shen; Zikui Wang Agricultural Water Management 2026. doi:10.1016/j.agwat.2026.110261

Other claims from this paper (19)

Intervention effect In the mixed sowing system oat yields were comparable to sole oat, with a slight increase in 2023, while common vetch yields were notably reduced.
Intervention effect Mixed sowing increased yields by 7.6% compared with sole oat under conventional N.
Intervention effect Mixed sowing increased yields by 44.6% compared with sole oat under half N.
Intervention effect Mixed sowing increased yields by 22.6% compared with sole oat under no N.
Intervention effect Mixed sowing increased crude protein yields by 32.5% compared with sole oat under conventional N.
Intervention effect Mixed sowing increased crude protein yields by 142.0% compared with sole oat under half N.
Intervention effect Mixed sowing increased crude protein yields by 113.6% compared with sole oat under no N.
Intervention effect The mixed system increased yields by 10.1% compared with sole common vetch under half N.
Intervention effect Mixed sowing decreased soil water content by 9.5% compared with sole oat under conventional N.
Intervention effect Mixed sowing decreased soil water content by 6.2% compared with sole oat under half N.
Intervention effect Mixed sowing decreased soil water content by 6.4% compared with sole oat under no N.
Intervention effect Oat/common vetch mixtures enhanced root length density in the 20–60 cm soil layer, and a strong negative correlation between root length density and soil water content indicated improved root-water complementarity.
Intervention effect Water productivity in the mixed system improved by 45.8% under half N.
Intervention effect Water productivity in the mixed system improved by 12.2% under no N.
Intervention effect Crude protein water productivity in the mixed system rose by 22.2% under conventional N.
Intervention effect Crude protein water productivity in the mixed system rose by 138.5% under half N.
Intervention effect Crude protein water productivity in the mixed system rose by 93.1% under no N.
Mechanism The authors attribute the highest dry matter and protein water productivity of the half-N mixture to biological nitrogen fixation and balanced nutrient-water interactions.
Recommendation The authors conclude that moderate N input in oat/common vetch mixtures maximizes productivity and resource efficiency.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The mixed system increased yields by 10.1% compared with sole common vetch under half N.

Taxon: oat/common vetchVicia sativa Avena sativae0
Treatment: mixed systeme1
Outcome: yieldse1
Direction: increasede1
Value: 10.1%e1
Qualifier: HNe1
Comparator: sole common vetche1

Verbatim

e0
“oat/common vetch mixtures under three nitrogen (N) applications”
✓ located verbatim in the source · abstract, characters 274–337

e1
“the mixed system only increased yields by 26.4% and 10.1% under CN and HN conditions compared to sole common vetch”
✓ located verbatim in the source · abstract, characters 903–1017

Title

Seed mixture of oat and common vetch improved yields and water productivity by belowground root niche complementarity

Qianhu Ma; Yuying Shen; Zikui Wang Agricultural Water Management 2026. doi:10.1016/j.agwat.2026.110261

Other claims from this paper (19)

Intervention effect In the mixed sowing system oat yields were comparable to sole oat, with a slight increase in 2023, while common vetch yields were notably reduced.
Intervention effect Mixed sowing increased yields by 7.6% compared with sole oat under conventional N.
Intervention effect Mixed sowing increased yields by 44.6% compared with sole oat under half N.
Intervention effect Mixed sowing increased yields by 22.6% compared with sole oat under no N.
Intervention effect Mixed sowing increased crude protein yields by 32.5% compared with sole oat under conventional N.
Intervention effect Mixed sowing increased crude protein yields by 142.0% compared with sole oat under half N.
Intervention effect Mixed sowing increased crude protein yields by 113.6% compared with sole oat under no N.
Intervention effect The mixed system increased yields by 26.4% compared with sole common vetch under conventional N.
Intervention effect Mixed sowing decreased soil water content by 9.5% compared with sole oat under conventional N.
Intervention effect Mixed sowing decreased soil water content by 6.2% compared with sole oat under half N.
Intervention effect Mixed sowing decreased soil water content by 6.4% compared with sole oat under no N.
Intervention effect Oat/common vetch mixtures enhanced root length density in the 20–60 cm soil layer, and a strong negative correlation between root length density and soil water content indicated improved root-water complementarity.
Intervention effect Water productivity in the mixed system improved by 45.8% under half N.
Intervention effect Water productivity in the mixed system improved by 12.2% under no N.
Intervention effect Crude protein water productivity in the mixed system rose by 22.2% under conventional N.
Intervention effect Crude protein water productivity in the mixed system rose by 138.5% under half N.
Intervention effect Crude protein water productivity in the mixed system rose by 93.1% under no N.
Mechanism The authors attribute the highest dry matter and protein water productivity of the half-N mixture to biological nitrogen fixation and balanced nutrient-water interactions.
Recommendation The authors conclude that moderate N input in oat/common vetch mixtures maximizes productivity and resource efficiency.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Mixed sowing decreased soil water content by 9.5% compared with sole oat under conventional N.

Taxon: oat/common vetchVicia sativa Avena sativae0
Treatment: mixed sowinge1
Outcome: soil water contente1
Direction: decreasede1
Value: 9.5%e1
Qualifier: CNe1
Comparator: sole oat cultivatione1

Verbatim

e0
“oat/common vetch mixtures under three nitrogen (N) applications”
✓ located verbatim in the source · abstract, characters 274–337

e1
“mixed sowing resulted in decreased soil water content by 9.5%, 6.2%, and 6.4% under CN, HN, and NN conditions, respectively, in comparison to sole oat cultivation”
✓ located verbatim in the source · abstract, characters 1033–1195

Title

Seed mixture of oat and common vetch improved yields and water productivity by belowground root niche complementarity

Qianhu Ma; Yuying Shen; Zikui Wang Agricultural Water Management 2026. doi:10.1016/j.agwat.2026.110261

Other claims from this paper (19)

Intervention effect In the mixed sowing system oat yields were comparable to sole oat, with a slight increase in 2023, while common vetch yields were notably reduced.
Intervention effect Mixed sowing increased yields by 7.6% compared with sole oat under conventional N.
Intervention effect Mixed sowing increased yields by 44.6% compared with sole oat under half N.
Intervention effect Mixed sowing increased yields by 22.6% compared with sole oat under no N.
Intervention effect Mixed sowing increased crude protein yields by 32.5% compared with sole oat under conventional N.
Intervention effect Mixed sowing increased crude protein yields by 142.0% compared with sole oat under half N.
Intervention effect Mixed sowing increased crude protein yields by 113.6% compared with sole oat under no N.
Intervention effect The mixed system increased yields by 26.4% compared with sole common vetch under conventional N.
Intervention effect The mixed system increased yields by 10.1% compared with sole common vetch under half N.
Intervention effect Mixed sowing decreased soil water content by 6.2% compared with sole oat under half N.
Intervention effect Mixed sowing decreased soil water content by 6.4% compared with sole oat under no N.
Intervention effect Oat/common vetch mixtures enhanced root length density in the 20–60 cm soil layer, and a strong negative correlation between root length density and soil water content indicated improved root-water complementarity.
Intervention effect Water productivity in the mixed system improved by 45.8% under half N.
Intervention effect Water productivity in the mixed system improved by 12.2% under no N.
Intervention effect Crude protein water productivity in the mixed system rose by 22.2% under conventional N.
Intervention effect Crude protein water productivity in the mixed system rose by 138.5% under half N.
Intervention effect Crude protein water productivity in the mixed system rose by 93.1% under no N.
Mechanism The authors attribute the highest dry matter and protein water productivity of the half-N mixture to biological nitrogen fixation and balanced nutrient-water interactions.
Recommendation The authors conclude that moderate N input in oat/common vetch mixtures maximizes productivity and resource efficiency.