Search claims · PlantClaims

Intervention effectobservedoriginal resultnegativesimulated

Claim · model-written summary

Reducing irrigation CU from 100 to 70% caused simulated yield losses of 0.75 to 2.5 Mg ha−1, varying by year.

Taxon: maizeZea mayse0
Treatment: decreasing CU of irrigation from 100 to 70%e0
Outcome: maize yielde0
Direction: decreasee0
Value: 0.75 to 2.5 Mg ha−1e0
Qualifier: varied from year to yeare0
Comparator: 100e0

Verbatim

e0
“The simulated decrease in maize yield with decreasing CU of irrigation from 100 to 70% varied from year to year and caused reductions in yield ranging from 0.75 to 2.5 Mg ha−1.”
✓ located verbatim in the source · abstract, characters 1540–1716

Title

Effect of non-uniform sprinkler irrigation and plant density on simulated maize yield

Salmerón Cortasa, Montserrat; Isla Climente, Ramón; Cavero Campo, José; et al. citaREA (Centro de Investigación y Tecnología Agroalimentaria de Aragón) 2012

Other claims from this paper (5)

Association Variation in plant density and irrigation depth explained 28 to 77% of maize yield variation in high-uniformity, high-density experiments.
Method / resource Using irrigation-depth distribution improved maize-yield simulation relative to average applied irrigation.
Method / resource RMSE fell from 637 to 328 kg ha−1.
Method / resource Without irrigation-depth distribution, maize yield was overpredicted by 3%.
Method / resource Adding plant-density distribution did not improve maize-yield simulations.

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors attributed the yield pattern to increased plant number offsetting decreased yield components.

Taxon: MaizeZea mayst0
Outcome: yield componentse0
Qualifier: increase in the number of plants per unit areae0

Verbatim

e0
“the increase in the number of plants per unit area was replaced by the decrease in the yield components”
✓ located verbatim in the source · abstract, characters 1563–1666

t0
“Maize”
✓ located verbatim in the source · title, characters 72–77

Title

Evaluating the Performance of the Lines and Their Half Diallel Cross in Maize (Zea mays L.) Under Plant Density

A. A. Hamdi; O. H. Al-rawi IOP Conference Series Earth and Environmental Science 2021. doi:10.1088/1755-1315/761/1/012073

Other claims from this paper (12)

Observation Densities and genotypes differed significantly.
Observation Cross 3 × 5 had the fewest days to tasseling.
Observation Cross 3 × 5 had the highest plant height at 188.60 cm.
Observation Cross 3 × 5 had the highest number of rows per head at 15.5.
Observation Cross 3 × 5 gave the highest yield, 19.54 tons per hectare.
Observation Cross 1× 5 had the highest leaf area at 5925 cm.
Observation Cross 4×5 had the highest average kernel number per row at 39.33.
Observation Cross 3×4 had the highest average kernel number per row at 38.97.
Observation Cross 1×4 had the highest weight of 300 grains.
Intervention effect At 62,500 plants per hectare, maize reached flowering in the fewest days.
Intervention effect At 62,500 plants per hectare, maize had the highest plant height, leaf area, row number, grains per row and 300 grain weight.
Intervention effect Yield at 62,500 plants per hectare was lower than at 125,500 plants per hectare, at 14.93.

Observationobservedoriginal resultnot significant (as stated)measured

Claim · model-written summary

Root number did not differ significantly among XY, FM and DK.

Taxon: maizeZea mayst0
Material: XY, FM and DKe0
Outcome: number of rootse0

Not reportedDirection

Verbatim

e0
“The difference in the number of roots of XY, FM and DK were not significant, so change in variety did not alleviate the decrease in the number of roots.”
✓ located verbatim in the source · abstract, characters 1095–1247

t0
“Maize”
✓ located verbatim in the source · title, characters 102–107

Title

Planting Density and Variety Modulated Root and Leaf Characteristics to Improve Grain Yield of Spring Maize

Qinglong Yang; Xiwen Shao; Yujun Cao; et al. International Journal of Agriculture and Biology 2020. doi:10.17957/ijab/15.1636

Other claims from this paper (11)

Association Increasing density increased leaf area index.
Association Increasing density reduced individual leaf area and net photosynthetic rate.
Intervention effect At 0–20 cm, root dry matter fell by 55.88% at D2 versus D1.
Intervention effect At 0–20 cm, root dry matter fell by 80.92% at D3 versus D1.
Intervention effect Root number fell by 31.18% at D2 versus D1.
Intervention effect Root number fell by 38.71% at D3 versus D1.
Association Yield and dry matter per plant declined as density increased.
Association Yield and dry matter per hectare rose from D1 to D2 and flattened from D2 to D3.
Intervention effect Two-year mean yield per plant decreased 34.10% at D2 versus D1.
Intervention effect Two-year mean yield per plant decreased 51.87% at D3 versus D1.
Recommendation The authors recommend approximately 60,000 plants ha-1 for spring maize yield.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Salinity significantly reduced Pioneer‐3906 yield through inhibited kernel setting.

Taxon: maizeZea mayst0
Material: Pioneer‐3906e0
Treatment: salinitye0
Outcome: Yielde0
Direction: reducede0
Qualifier: inhibited kernel settinge0

Not reportedComparator

Verbatim

e0
“Yield of Pioneer‐3906 was significantly reduced under salinity because of inhibited kernel setting, whereas the SR hybrids showed no decrease in grain yield.”
✓ located verbatim in the source · abstract, characters 824–981

t0
“Enhancing maize grain yield”
✓ located verbatim in the source · title, characters 0–27

Title

Enhancing maize grain yield under salt‐affected field conditions using salt‐resistant maize hybrids and higher planting density

Muhammad Saqib; Sven Schubert Journal of Plant Nutrition and Soil Science 2023. doi:10.1002/jpln.202200423

Other claims from this paper (6)

Intervention effect Salt resistant hybrids showed no grain yield decrease under salinity.
Intervention effect The optimum planting density for grain yield was 8 plants per square metre.
Intervention effect EV‐78 harvest index did not increase at 8 versus 5 plants per square metre.
Mechanism Pioneer‐3906 vegetative growth decreased due to Phase I effects.
Mechanism SR hybrids vegetative growth decreased due to Phase I effects.
Recommendation Salt resistant cultivar planting density may be higher under saline conditions with irrigation.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

The same treatments decreased crop resistance indices and treatment efficacy indices in maize relative to the control.

Taxon: maizeZea mayse1
Treatment: Sorghum, brassica or sunflower tank-mixed with 25% of the recommended dose of atrazinee2
Outcome: crop resistance indices and treatment efficacy indicese2
Direction: decreasee2
Comparator: controle2

Verbatim

e1
“evaluated for weed suppression in a maize crop”
✓ located verbatim in the source · abstract, characters 631–677

e2
“Sorghum, brassica or sunflower tank-mixed with 25% of the recommended dose of atrazine significantly suppressed the total weed density and dry biomass, along with a concomitant decrease in the crop resistance indices and treatment efficacy indices over the control”
✓ located after whitespace/quote normalisation · abstract, characters 837–1101

Title

Field evaluation of allelopathic plant extracts alongside herbicides on weed management indices and weed–crop regression analysis in maize

Muhammad Zahid Ihsan; Abdul Khaliq; Azhar Mahmood; et al. Weed Biology and Management 2015. doi:10.1111/wbm.12070

Other claims from this paper (3)

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T3 produced higher microbial diversity indices than T1.

Taxon: MaizeZea mayst0
Treatment: T3e0
Outcome: microbial diversity indicese0
Direction: highere0
Comparator: T1e0

Verbatim

e0
“Compared to T1, T3 led to a decrease in soil bulk density by 8.89%, higher microbial diversity indices, and significant increases in plant height, stem diameter, and yield by 6.25%, 15.48%, and 37.43%, respectively.”
✓ located verbatim in the source · abstract, characters 880–1095

t0
“Dryland Maize”
✓ located verbatim in the source · title, characters 72–85

Title

A Comparative Study on the Effect of Biogas Residue Soil Conditioner on Dryland Maize

Jing Zhou; Xiuhong Wang; Baoping Wang; et al. Agronomy 2025. doi:10.3390/agronomy15122845

Other claims from this paper (10)

Intervention effect T3 reduced soil bulk density.
Intervention effect T3 increased soil organic matter content.
Intervention effect T3 enhanced rhizosphere microbial diversity.
Intervention effect Relative to T1, T3 changed soil bulk density by 8.89%.
Intervention effect Relative to T1, T3 changed plant height by 6.25%.
Intervention effect Relative to T1, T3 changed stem diameter by 15.48%.
Intervention effect Relative to T1, T3 changed yield by 37.43%.
Intervention effect T3 elevated SOD and POD antioxidant enzyme activities.
Intervention effect T3 lowered malondialdehyde content.
Intervention effect The combined conditioner and fungi improved soil organic matter levels and structure.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Compacted soil or a soil matric potential of -0.86 MPa significantly decreased maize root length relative to -0.17 MPa.

Taxon: maizeZea mayse0
Treatment: compacted soils or the soil matric potential reach -0.86 MPae4
Outcome: root lengthe4
Direction: decreasee4
Comparator: -0.17 MPae4

Verbatim

e0
“Split root experiments were conducted on maize under both low (-0.86 MPa) and high (-0.17 MPa) soil matric potential conditions”
✓ located verbatim in the source · abstract, characters 0–127

e4
“There was a significant decrease in root length and also in root dry matter when plants are grown on compacted soils or the soil matric potential reach -0.86 MPa from -0.17 MPa”
✓ located verbatim in the source · abstract, characters 810–986

Title

Effects of soil bulk density on the growth of maize root system under different water condition

Liu Wan Xibei zhiwu xuebao 2002

Other claims from this paper (7)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Parthenium weed densities of 5-15 plants m−2 caused 8-10% grain yield losses in maize.

Taxon: maizeZea mayse1
Treatment: parthenium weed densities of 5–15 plants m−2e1
Interactor: parthenium weede1weed
Outcome: grain yielde1
Direction: decreaseinferrede1
Value: 8–10%e1

Not reportedComparator

Verbatim

e1
“parthenium weed densities of 5–15 plants m−2 only caused 8–10% losses in the grain yield of maize”
✓ located verbatim in the source · abstract, characters 1148–1245

Title

The effects of parthenium weed density on yield attributes and yield of maize in Ethiopia.

Ali Ahsan Bajwa; Tamado Tana; Bhagirath Singh Chauhan; et al. Queensland's institutional digital repository (The University of Queensland) 2018

Other claims from this paper (9)

Intervention effect At 20 plants m−2, parthenium weed reduced maize leaf area index by 15%.
Intervention effect At 20 plants m−2, parthenium weed reduced ears per plant of maize by 21%.
Intervention effect At 20 plants m−2, parthenium weed reduced thousand grain weight of maize by 12%.
Intervention effect At 20 plants m−2, parthenium weed reduced maize biological yield by 15%.
Intervention effect At 20 plants m−2, parthenium weed reduced maize grain yield by 18%.
Association Parthenium weed biomass increased linearly with weed density.
Association Parthenium weed biomass had strong negative correlations with maize yield and yield-related traits.
Intervention effect Parthenium weed density had a significant negative effect on maize growth and yield.
Recommendation Parthenium weed density should be reduced below 15 plants m−2 to avoid substantial maize yield losses.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Relative to T1, T3 changed yield by 37.43%.

Taxon: MaizeZea mayst0
Treatment: T3e0
Outcome: yielde0
Direction: increasese0
Value: 37.43%e0
Comparator: T1e0

Verbatim

e0
“Compared to T1, T3 led to a decrease in soil bulk density by 8.89%, higher microbial diversity indices, and significant increases in plant height, stem diameter, and yield by 6.25%, 15.48%, and 37.43%, respectively.”
✓ located verbatim in the source · abstract, characters 880–1095

t0
“Dryland Maize”
✓ located verbatim in the source · title, characters 72–85

Title

A Comparative Study on the Effect of Biogas Residue Soil Conditioner on Dryland Maize

Jing Zhou; Xiuhong Wang; Baoping Wang; et al. Agronomy 2025. doi:10.3390/agronomy15122845

Other claims from this paper (10)

Intervention effect T3 reduced soil bulk density.
Intervention effect T3 increased soil organic matter content.
Intervention effect T3 enhanced rhizosphere microbial diversity.
Intervention effect Relative to T1, T3 changed soil bulk density by 8.89%.
Intervention effect Relative to T1, T3 changed plant height by 6.25%.
Intervention effect Relative to T1, T3 changed stem diameter by 15.48%.
Intervention effect T3 produced higher microbial diversity indices than T1.
Intervention effect T3 elevated SOD and POD antioxidant enzyme activities.
Intervention effect T3 lowered malondialdehyde content.
Intervention effect The combined conditioner and fungi improved soil organic matter levels and structure.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Compacted soil or a soil matric potential of -0.86 MPa significantly decreased maize root dry matter relative to -0.17 MPa.

Taxon: maizeZea mayse0
Treatment: compacted soils or the soil matric potential reach -0.86 MPae4
Outcome: root dry mattere4
Direction: decreasee4
Comparator: -0.17 MPae4

Verbatim

e0
“Split root experiments were conducted on maize under both low (-0.86 MPa) and high (-0.17 MPa) soil matric potential conditions”
✓ located verbatim in the source · abstract, characters 0–127

e4
“There was a significant decrease in root length and also in root dry matter when plants are grown on compacted soils or the soil matric potential reach -0.86 MPa from -0.17 MPa”
✓ located verbatim in the source · abstract, characters 810–986

Title

Effects of soil bulk density on the growth of maize root system under different water condition

Liu Wan Xibei zhiwu xuebao 2002

Other claims from this paper (7)

“decrease in density”

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Over time

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