Search claims · PlantClaims

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

DCPA did not injure Yuchi arrowleaf clover across the three-year experiments.

Taxon: Yuchi arrowleaf clovere0
Treatment: DCPAe0
Outcome: injure Yuchi arrowleaf clovere0
Direction: did not injuree0
Qualifier: over the 3-year periode0

Not reportedComparator

Verbatim

e0
“DCPA did not injure Yuchi arrowleaf clover in any experiments over the 3-year period”
✓ located verbatim in the source · abstract, characters 494–578

Title

Tolerance of Yuchi Arrowleaf Clover to Herbicides

Gale A. Buchanan; Carl S. Hoveland Weed Science 1971. doi:10.1017/s0043174500048827

Other claims from this paper (4)

Intervention effect Lower rates of benefin caused moderate or no injury depending on year and location.
Intervention effect Lower rates of chlorpropham caused moderate or no injury depending on year and location.
Association Yuchi clover yield reductions were generally greater on Norfolk than Lucedale soil.
Observation Early injury reflected by the first forage harvest was transitory in many instances.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Light did not influence arrowleaf sida germination.

Taxon: arrowleaf sidae0
Treatment: Lighte0
Outcome: germinatione0
Direction: did not influencee0

Not reportedComparator

Verbatim

e0
“Light did not influence the germination of arrowleaf sida or prickly sida.”
✓ located verbatim in the source · abstract, characters 973–1047

Title

Arrowleaf sida (Sida rhombifolia) and prickly sida (Sida spinosa): germination and emergence

C. A. SMITH; D. R. SHAW; L. J. NEWSOM Weed Research 1992. doi:10.1111/j.1365-3180.1992.tb01867.x

Other claims from this paper (17)

Observation Arrowleaf sida germination was maximal at 35°C.
Observation Prickly sida germinated equally at 35 and 40°C.
Observation Arrowleaf sida germinated better than prickly sida at 20 and 25°C.
Observation Arrowleaf sida did not germinate at 40°C.
Observation arrowleaf sida seed viability was below 50% after 21 days at 45°C.
Observation prickly sida seed viability was below 50% after 21 days at 45°C.
Observation arrowleaf sida germination exceeded 75% at pH 5.0–8.0.
Observation prickly sida germination exceeded 75% at pH 5.0–8.0.
Observation Arrowleaf sida germinated more than prickly sida from 0 to —800 kPa.
Observation —200 kPa reduced prickly sida germination.
Observation —400 kPa was needed to reduce arrowleaf sida germination.
Observation Prickly sida emergence was optimal at 0.5 cm and declined at deeper depths.
Observation Arrowleaf sida emerged equally at 0.5–2.0 cm.
Observation Arrowleaf sida emergence declined below 2.0 cm.
Observation Arrowleaf sida did not emerge beyond 5.0 cm.
Observation prickly sida did not emerge beyond 5.0 cm.
Intervention effect Light did not influence prickly sida germination.

Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Two selections of Amclo arrowleaf clover were not toxic to Rhizobium trifolii

Taxon: arrowleaf clovere4
Material: Amcloe4
Interactor: R. trifoliiRhizobium leguminosarume4symbiont
Outcome: not to be toxice4

Verbatim

e4
“Two selections of ‘Amclo’ arrowleaf clover were demonstrated not to be toxic to R. trifolii”
✓ located verbatim in the source · abstract, characters 990–1081

Title

Toxicity of Arrowleaf Clover Seed to Rhizobium trifolii¹

L.A. Materon; R.W. Weaver Agronomy Journal 1984. doi:10.2134/agronj1984.00021962007600030025x

Other claims from this paper (3)

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Soil oxygen had little effect on arrowleaf clover forage composition.

Taxon: arrowleaf clovere0
Treatment: Soil O 2e0
Outcome: composition of arrowleaf clover foragee0
Direction: little effecte0

Not reportedComparator

Verbatim

e0
“Soil O 2 had little effect on the composition of arrowleaf clover forage”
✓ located verbatim in the source · abstract, characters 1023–1095

Title

Soil Oxygen and Temperature Effect on Tetany Potential of Three Annual Forage Species¹

Charles B. Elkins; Carl S. Hoveland Agronomy Journal 1977. doi:10.2134/agronj1977.00021962006900040026x

Other claims from this paper (11)

Intervention effect Increasing soil oxygen had little effect on rye Ca or Mg content.
Intervention effect Increasing soil oxygen raised rye K from 2 to 5%.
Intervention effect Increasing soil oxygen raised rye K/(Ca+Mg) above 4.
Association Uptake of K, Ca and Mg was generally lower at 12 than 16 C.
Intervention effect Ryegrass K, Ca and Mg contents were higher with increasing soil oxygen.
Association Ryegrass K, Ca and Mg concentrations were lower at 12 than 16 C.
Observation Ryegrass Mg was below 0.2% at 2 to 16% soil oxygen and 12 C.
Intervention effect Arrowleaf clover K increased slightly with soil oxygen.
Association Ryegrass on poorly drained soil was inferred to be more tetany prone.
Association Rye on well drained soil was inferred to be more tetany prone.
Recommendation High clover Mg was judged valuable for balancing tetany prone grass forage.

Observationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Total grass yield did not significantly differ after crimson versus arrowleaf clover.

Taxon: grasse0
Outcome: Total grass yieldse0
Direction: not significantly differente0

Verbatim

e0
“Total grass yields following crimson and arrowleaf clovers were not significantly different.”
✓ located verbatim in the source · abstract, characters 691–783

Title

Productivity of Crimson and Arrowleaf Clovers Grown in a Coastal Bermudagrass Sod¹

W. E. Knight Agronomy Journal 1970. doi:10.2134/agronj1970.00021962006200060027x

Other claims from this paper (13)

Observation Clover species did not differ significantly in seedling counts.
Intervention effect Self-reseeding stands produced earlier growth.
Observation Total production did not differ significantly by seeding method.
Observation Crimson clover averaged 33% more forage than arrowleaf.
Mechanism Arrowleaf had lower yields due to poor recovery and regrowth during drought.
Intervention effect Grass after clover produced 18% more forage than fertilized grass without clover.
Observation The first grass harvest after arrowleaf was reduced.
Mechanism Greater competition from arrowleaf than crimson clover caused the first-harvest reduction.
Intervention effect Clover followed by Coastal bermudagrass produced 47% more total forage than fertilized grass without clover.
Observation The crimson clover–bermudagrass sequence produced the highest total forage.
Observation Crimson clover contributed 22% to total yield.
Observation Arrowleaf contributed 17% to total yield.
Recommendation The authors recommend winter annual clovers to supply part of summer grass nitrogen needs.

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Arrowleaf clover yield did not differ from zero nitrogen fertilizer.

Taxon: SwitchgrassPanicum virgatumt0
Treatment: Arrowleaf clovere0
Outcome: yieldse0
Direction: not differente0
Comparator: 0 kg N ha−1e0

Verbatim

e0
“Arrowleaf clover yields were not different from 0 kg N ha−1.”
✓ located verbatim in the source · abstract, characters 1484–1544

t0
“Switchgrass”
✓ located verbatim in the source · title, characters 0–11

Title

Switchgrass yield and stand dynamics from legume intercropping based on seeding rate and harvest management

A.J. Ashworth; F.L. Allen; P.D. Keyser; et al. Journal of Soil and Water Conservation 2015. doi:10.2489/jswc.70.6.374

Other claims from this paper (12)

Observation Yield impacts in year one were minimal.
Intervention effect In the second harvest year, legumes increased yield relative to year one.
Intervention effect Second year yield under red clover did not differ from 33 and 67 kg N ha−1 fertilization.
Intervention effect Second year yield under hairy vetch did not differ from 33 and 67 kg N ha−1 fertilization.
Intervention effect Second year yield under ladino clover did not differ from 33 and 67 kg N ha−1 fertilization.
Intervention effect Second year yield under partridge pea did not differ from 33 and 67 kg N ha−1 fertilization.
Intervention effect Forage biomass yield responded more to legumes than to the biomass harvest regime.
Observation Ladino clover persisted relatively well after three years.
Observation Partridge pea persisted relatively well after three years.
Intervention effect Hairy vetch improved switchgrass forage quality in some cases.
Intervention effect Partridge pea improved switchgrass forage quality in some cases.
Recommendation The authors suggest selected legume intercrops could enhance switchgrass forage quality and yield and reduce inputs and emissions.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Birdsfoot trefoil, red clover cv. Quiniquelli, white clover, and arrowleaf clover did not reduce wheat yields in either year.

Taxon: wheatTriticum aestivume0
Treatment: Birdsfoot trefoil, red clover cv. Quiniquelli, white clover, and arrowleaf clovere0
Outcome: wheat yieldse0
Direction: did not reducee0
Qualifier: either yeare0

Not reportedComparator

Verbatim

e0
“Birdsfoot trefoil, red clover cv. Quiniquelli, white clover, and arrowleaf clover did not reduce wheat yields in either year”
✓ located verbatim in the source · abstract, characters 535–659

Title

Wheat inter-cropped with forage legumes in southern Brazill

G. O. Tomm; R. K. Foster 1990

Other claims from this paper (6)

Intervention effect Intercropping red clover cv. Kenland reduced wheat yield in the first year.
Intervention effect Intercropping subclover reduced wheat yield in the first year.
Intervention effect No wheat grain yield differences due to legume intercropping were detected in low-rainfall 1988.
Observation Legumes intercropped with wheat were expected to provide at least 62% ground cover in the seeding year.
Observation Natural reseeding of white clover intercropped with wheat was good in both years.
Recommendation The authors identified white clover grown with wheat as promising for intercropping.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Potassium fertilizer alone did not increase clover yield.

Taxon: Arrowleaf Clovert0
Treatment: K fertilization alonee0
Outcome: Yielde0
Direction: not increasede0

Not reportedComparator

Verbatim

e0
“Yield was not increased with K fertilization alone”
✓ located verbatim in the source · abstract, characters 1360–1410

t0
“Arrowleaf Clover”
✓ located verbatim in the source · title, characters 65–81

Title

Phosphorus and Potassium Effects on Yield and Nutrient Uptake in Arrowleaf Clover

R. L. Westerman; J. C. Silvertooth; H. J. Barreto; et al. Soil Science Society of America Journal 1984. doi:10.2136/sssaj1984.03615995004800060018x

Other claims from this paper (16)

Intervention effect Phosphorus fertilization increased clover yield each year.
Association P and K interacted positively for yield in 1982.
Observation At zero K, predicted maximum yield was 6561 kg ha−1 with 50.8 kg P ha−1.
Observation At 37 kg K, predicted maximum yield was 6490 kg ha−1 with 52.4 kg P ha−1.
Observation At 74 kg K, predicted maximum yield was 6516 kg ha−1 with 54.0 kg P ha−1.
Observation At 148 kg K, predicted maximum yield was 6860 kg ha−1 with 57.2 kg P ha−1.
Intervention effect Phosphorus increased forage N, P and K uptake.
Observation Combining phosphorus and potassium produced some uptake interactions.
Intervention effect Annual P at 20 kg ha−1 slowly increased the soil P index by 0.5 kg ha−1 yr−1.
Intervention effect Four annual P applications at 80 kg ha−1 rapidly accumulated soil P at 16.5 kg ha−1 yr−1.
Observation Approximately 107 annual applications of 20 kg P ha−1 were predicted to reach sufficient soil P.
Observation Approximately 16 annual applications of 40 kg P ha−1 were predicted to reach sufficient soil P.
Observation Approximately six annual applications of 60 kg P ha−1 were predicted to reach sufficient soil P.
Observation Approximately three annual applications of 80 kg P ha−1 were predicted to reach sufficient soil P.
Intervention effect Four annual 148 kg K ha−1 applications raised soil K from 133 to 308 kg ha−1.
Intervention effect Combining four annual 80 kg P and 148 kg K applications raised soil K to only 192 kg ha−1.

Associationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Berseem clover gall scores did not differ significantly from the susceptible arrowleaf clover.

Taxon: berseem clovere1
Outcome: Gall scorese2
Direction: not significantly differente2
Comparator: arrowleaf clovere2

Verbatim

e1
“All nine germplasm sources of berseem clover, including Bigbee, were severely galled by M. arenaria , M. javanica , and M. incognita race 3 in the two greenhouse experiments”
✓ located verbatim in the source · abstract, characters 642–815

e2
“Gall scores were not significantly different than for the known susceptible host ‘Amclo’ arrowleaf clover”
✓ located verbatim in the source · abstract, characters 817–922

Title

Root‐Knot Nematode Interaction with Berseem Clover and Other Temperate Forage Legumes¹

D. D. Baltensperger; K. H. Quesenberry; R. A. Dunn; et al. Crop Science 1985. doi:10.2135/cropsci1985.0011183x002500050029x

Other claims from this paper (4)

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Early nitrogen had little effect on clover production by mid March.

Taxon: arrowleaf clovere0
Treatment: Planting, FCL, and December N applicationse0
Outcome: arrowleaf clover productione0
Direction: little effecte0

Not reportedComparator

Verbatim

e0
“Planting, FCL, and December N applications enhanced ryegrass production but had little effect on arrowleaf clover production by mid March”
✓ located verbatim in the source · abstract, characters 538–675

Title

The Interaction of Annual Ryegrass and Nitrogen on Arrowleaf Clover in the Southeastern United States

Gerald Evers Crop Science 2011. doi:10.2135/cropsci2010.02.0049

Other claims from this paper (10)

Intervention effect Early nitrogen applications enhanced ryegrass production.
Association Clover percentage and yield decreased as total nitrogen increased.
Association Ryegrass yield increased with total nitrogen.
Intervention effect The no nitrogen treatment had the greatest clover percentage.
Observation Single nitrogen applications usually retained clover above 50%.
Observation Ryegrass alone yielded 1139 kg ha −1 without nitrogen.
Intervention effect Ryegrass alone yielded 4038 kg ha −1 with 201 kg N ha −1.
Observation Three 67 kg N applications were consistently among the most productive treatments.
Recommendation Two 67 kg N applications best balanced clover percentage and mixed forage yield.
Intervention effect The two application mixture equalled ryegrass alone given three applications in yield.

“arrowleaf”

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