Search claims · PlantClaims

Associationobservedoriginal resultnegativesimulated

Claim · model-written summary

Models predicted above average July heat units would decrease corn yield.

Treatment: above average heat unitse0
Outcome: yielde0
Direction: decreasee0

Not reportedTaxon

Verbatim

e0
“above average heat units would decrease yield”
✓ located verbatim in the source · abstract, characters 1433–1478

Title

Nitrogen, Climate, and Previous Crop Effect on Corn Yield and Grain N¹

M. Asghari; R. G. Hanson Agronomy Journal 1984. doi:10.2134/agronj1984.00021962007600040007x

Other claims from this paper (12)

Intervention effect N fertilizer significantly increased corn yield in three of four years after small grain.
Intervention effect N fertilization did not increase corn yield following alfalfa.
Intervention effect N fertilization significantly increased corn grain N content.
Observation Corn grain N content was higher following alfalfa.
Association One hundred percent relative yield corresponded to grain N content of 1.09 mol kg− 1.
Association June precipitation had no significant effect on corn yield.
Association Above average June heat units positively affected corn yield.
Association Models predicted above average July precipitation would increase corn yield.
Association More precipitation could offset above average July heat unit effects.
Method / resource Model predicted 114.3 mm July precipitation to reach 100% relative yield at mean heat units.
Method / resource At 114.3 mm precipitation, the predicted corn yield was 9.36 Mg ha− 1.
Method / resource The predicted N fertilizer requirement for that yield was 136 kg N ha− 1.

Associationobservedreview summarynegativemeasured

Claim · model-written summary

Weed competition can decrease alfalfa yield.

Taxon: alfalfaMedicago sativae0
Interactor: Weedse0weed
Outcome: yieldse0
Direction: decreasee0

Verbatim

e0
“Weeds compete with alfalfa for water, nutrients, light, and space. This competition can decrease yields”
✓ located verbatim in the source · abstract, characters 0–103

Title

Weed Management in Alfalfa

William W. Witt UKnowledge (University of Kentucky) 1983

Other claims from this paper (4)

Associationauthor interpretationreview summarynegativebasis n/a

Claim · model-written summary

Salinity above 8 dS /m may decrease alfalfa yield by 50 %.

Taxon: alfalfaMedicago sativae0
Treatment: levelse0
Outcome: alfalfa yielde0
Direction: decreasee0
Value: 50 %e0
Qualifier: 8 dS /me0

Verbatim

e0
“8 dS /m (4091 ppm, 70 mM), levels that may decrease alfalfa yield by 50 %”
✓ located verbatim in the source · abstract, characters 526–599

Title

Breeding Strategies for Alfalfa Grown Under Saline Conditions

D. W. Johnson; S. E. Smith; A. K. Dobrenz UA Campus Repository (The University of Arizona) 1988

Other claims from this paper (3)

Association Alfalfa yields may increase slightly at very low soil salinity.
Association Moderate to high salinity may drastically reduce alfalfa yield.
Association Alfalfa yield begins to decline above a soil salinity threshold of 2 dS /m.

Associationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

There was no evidence for a decrease in yield caused by root-zone warming.

Taxon: Rosee0
Treatment: RZWe1
Outcome: yielde1
Direction: decreasee1

Verbatim

e0
“Rose cvs Ilona, Mercedes and Sonia”
✓ located verbatim in the source · abstract, characters 7–41

e1
“There was no evidence for a decrease in yield caused by RZW”
✓ located verbatim in the source · abstract, characters 1540–1599

Title

The effects of root-zone warming on the yield and quality of roses grown in a hydroponic system

G. I. Moss Journal of Horticultural Science 1984. doi:10.1080/00221589.1984.11515231

Other claims from this paper (19)

Intervention effect Root-zone warming gave Sonia 44% more blooms than ambient root temperature in Experiment 1.
Intervention effect Root-zone warming increased stem length of Sonia by 26% compared with ambient root temperature in Experiment 1.
Association Ilona gave a yield response to root-zone warming only at a night temperature of 12°C.
Association Root-zone warming resulted in 22% longer stems in Ilona.
Association Root-zone warming gave Mercedes 22% more blooms.
Association Root-zone warming produced 113% more blooms in Mercedes in the second year.
Association Root-zone warming produced 61% more blooms in Sonia in the second year.
Association Root-zone warming produced 42% more blooms in Ilona in the second year.
Observation Stem lengths of the roses increased by 6-7%.
Association Root-zone warming gave Mercedes 61% more blooms in the first-year plants of Experiment 3.
Association Root-zone warming gave Sonia 24% more blooms in the first-year plants of Experiment 3.
Association Root-zone warming gave Ilona 18% more blooms in the first-year plants of Experiment 3.
Association Ilona showed the largest increase in stem length, 24%, under root-zone warming.
Association Root-zone warming increased the amplitude of the growth flushes.
Association Root-zone warming left the frequency of growth flushes unaffected.
Association Summer yields indicate residual effects of the winter root-zone warming treatments.
Association Sonia gave significantly higher yields from root-zone warming in Experiment 1.
Association Mercedes and Sonia gave significantly higher yields from root-zone warming in Experiment 2.
Association Ilona gave a lower summer yield in Experiment 3.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

The decrease in sugarcane yield was much greater in some varieties than in others.

Taxon: sugarcanet0
Material: some varietiese5
Outcome: decrease in yielde5
Direction: much greatere5
Comparator: otherse5

Verbatim

t0
“Residual effect of glyphosate as a ripener on sugarcane”
✓ located verbatim in the source · title, characters 0–55

e5
“The decrease in yield in some varieties was much greater than in others”
✓ located verbatim in the source · abstract, characters 753–824

Title

Residual effect of glyphosate as a ripener on sugarcane.

R. A. Donaldson; N. G. Inman Bamber 1982

Other claims from this paper (5)

Intervention effect In one large trial with three successive sprayed crops, no residual effect of glyphosate on yield was found.
Intervention effect The residual activity of glyphosate was low in several trials under optimum moisture conditions.
Intervention effect Glyphosate increased sugarcane yields considerably through its ripening effect.
Intervention effect Glyphosate applied to the preceding crop reduced sugarcane yields by 11 to 17% in rainfed trials affected by drought.
Recommendation Glyphosate should be used only where cane is not stressed or likely to be stressed between spraying and harvesting.

Associationobservedreview summarynegativemeasured

Claim · model-written summary

Mite damage was shown to decrease cassava root yield by up to 87%.

Taxon: cassavaManihot esculentat0
Interactor: arthropodsArthropodae1pest
Outcome: root and stake yielde1
Direction: decreasee1
Value: 87%e1
Qualifier: respectivelye1

Verbatim

t0
“The cassava mites”
✓ located verbatim in the source · title, characters 0–17

e1
“These arthropods cause three patterns of damage and have been shown to cause a decrease in root and stake yield of up to 87% and 82% respectively”
✓ located verbatim in the source · abstract, characters 188–333

Title

The cassava mites

D. H. Byrne; A. C. Bellotti; J. M. Guerrero Tropical Pest Management 1983. doi:10.1080/09670878309370833

Other claims from this paper (4)

Associationobservedreview summarynegativemeasured

Claim · model-written summary

Mite damage was shown to decrease cassava stake yield by up to 82%.

Taxon: cassavaManihot esculentat0
Interactor: arthropodsArthropodae1pest
Outcome: root and stake yielde1
Direction: decreasee1
Value: 82%e1
Qualifier: respectivelye1

Verbatim

t0
“The cassava mites”
✓ located verbatim in the source · title, characters 0–17

e1
“These arthropods cause three patterns of damage and have been shown to cause a decrease in root and stake yield of up to 87% and 82% respectively”
✓ located verbatim in the source · abstract, characters 188–333

Title

The cassava mites

D. H. Byrne; A. C. Bellotti; J. M. Guerrero Tropical Pest Management 1983. doi:10.1080/09670878309370833

Other claims from this paper (4)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

P christiei populations were associated with 16% yield decrease in Bragg.

Taxon: SoybeansGlycine maxt0
Material: Bragge0
Interactor: P christieie1pest
Outcome: yield decreasee0
Direction: decreasee0
Value: 16%e0

Verbatim

e0
“were associated with 16%, 10% and 6% yield decrease of 'Bragg', 'Santa Rosa' and 'Hernon 147', respectively.”
✓ located verbatim in the source · abstract, characters 874–982

t0
“Plant-Parasitic Nematodes and Neocosmospora vasinfectca Var. Africana Associated with Soybeans”
✓ located verbatim in the source · title, characters 0–94

e1
“P christiei were recovered from fumigated plots”
✓ located verbatim in the source · abstract, characters 822–869

Title

Plant-Parasitic Nematodes and Neocosmospora vasinfectca Var. Africana Associated with Soybeans in the Republic of Zambia

Dennis A. Lawn; G. R. Noel; J. B. Sinclair Nematropica 1988

Other claims from this paper (5)

Observation Nematode populations did not differ significantly among soybean cultivars.
Intervention effect Fumigation significantly lowered populations of all nematode species except P christiei.
Intervention effect Fumigated plots at Mkushi had higher P christiei populations.
Association P christiei populations were associated with 10% yield decrease in Santa Rosa.
Association P christiei populations were associated with 6% yield decrease in Hernon 147.

Associationobservedoriginal resultmixedmeasured

Claim · model-written summary

Compaction from light axle loads can both increase and decrease crop yield, depending on soil texture and growing season precipitation.

Taxon: cropt1
Treatment: compactione1
Outcome: crop yielde1
Direction: increase and decreasee1
Qualifier: depending on soil texture and growing season precipitatione1

Verbatim

t1
“The Effect of Soil Compaction on Crop Yield”
✓ located verbatim in the source · title, characters 0–43

e1
“This compaction can both increase and decrease crop yield depending on soil texture and growing season precipitation”
✓ located verbatim in the source · abstract, characters 308–424

Title

The Effect of Soil Compaction on Crop Yield

W. B. Voorhees SAE technical papers on CD-ROM/SAE technical paper series 1986. doi:10.4271/860729

Other claims from this paper (5)

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

P christiei populations were associated with 10% yield decrease in Santa Rosa.

Taxon: SoybeansGlycine maxt0
Material: Santa Rosae0
Interactor: P christieie1pest
Outcome: yield decreasee0
Direction: decreasee0
Value: 10%e0

Verbatim

e0
“were associated with 16%, 10% and 6% yield decrease of 'Bragg', 'Santa Rosa' and 'Hernon 147', respectively.”
✓ located verbatim in the source · abstract, characters 874–982

t0
“Plant-Parasitic Nematodes and Neocosmospora vasinfectca Var. Africana Associated with Soybeans”
✓ located verbatim in the source · title, characters 0–94

e1
“P christiei were recovered from fumigated plots”
✓ located verbatim in the source · abstract, characters 822–869

Title

Plant-Parasitic Nematodes and Neocosmospora vasinfectca Var. Africana Associated with Soybeans in the Republic of Zambia

Dennis A. Lawn; G. R. Noel; J. B. Sinclair Nematropica 1988

Other claims from this paper (5)

Observation Nematode populations did not differ significantly among soybean cultivars.
Intervention effect Fumigation significantly lowered populations of all nematode species except P christiei.
Intervention effect Fumigated plots at Mkushi had higher P christiei populations.
Association P christiei populations were associated with 16% yield decrease in Bragg.
Association P christiei populations were associated with 6% yield decrease in Hernon 147.

“yield decrease”

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