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“yield decrease”

6,864 matches

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plus 1,201 non-evaluative

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plus 31 earlier · 1910s–1940s

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Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Delaying all N to V9 did not significantly decrease corn yield.

Taxon: CornZea mays subsp. mayst0
Treatment: Delaying all the N to V9e0
Outcome: yielde0
Direction: did not significantly decreasee0

Not reportedComparator

Verbatim

t0
“Corn yield following a delayed application of nitrogen”
✓ located verbatim in the source · title, characters 0–54

e0
“Delaying all the N to V9 did not significantly decrease yield”
✓ located verbatim in the source · abstract, characters 1064–1125

Title

Corn yield following a delayed application of nitrogen

Brian H. Yoder Illinois Digital Environment for Access to Learning and Scholarship (University of Illinois at Urbana-Champaign) 2018

Other claims from this paper (13)

Intervention effect In corn following soybean, delaying the second half of N to as late as R2 did not cause significant yield loss.
Intervention effect Corn with N applied at R3 yielded 92% of the yield of corn with the second application at V3.
Intervention effect Delaying all 224 kg N ha-1 through V15 did not decrease corn yield significantly.
Intervention effect Delaying all 224 kg N ha-1 through V15 reduced corn yield with application at VT, R2 and R3 (12, 19 and 37% less).
Intervention effect In corn following corn, delaying the second half of N to R3 gave 96% of the yield of the second application at V3.
Intervention effect In corn following corn, none of the delayed N timings significantly lowered yield.
Intervention effect Delaying all N to V12 reduced corn yield by 11% relative to earlier timings.
Intervention effect Delaying all N to R3 reduced corn yield by 42%.
Recommendation Without N at planting, N must be applied by mid-vegetative stages to prevent corn yield loss.
Intervention effect When half the N was applied at planting, delaying application until past pollination caused surprisingly little corn yield loss.
Observation Split-N corn treatments recovered healthy leaf color (SPAD) no matter how late N was applied.
Intervention effect With no N at planting, corn plants could not regain full leaf color or yield if N was applied later than mid-vegetative stages.
Recommendation If all N is delayed, application should be made before plants reach mid-vegetative growth stages.

Intervention effectauthor interpretationoriginal resultno effectmeasured

Claim · model-written summary

Low combined pest densities did not decrease canola yield.

Taxon: Brassica napus L.Brassica napust0
Treatment: low combined densitiese0
Outcome: yielde0
Direction: do not decreasee0

Not reportedComparator

Verbatim

e0
“low combined densities do not decrease yield”
✓ located verbatim in the source · abstract, characters 1078–1122

t0
“Brassica napus L.”
✓ located verbatim in the source · title, characters 78–95

Title

Effect of Insect Herbivory on the Architecture and Seed Production of Canola, Brassica napus L.

H.A. Cárcamo Journal of Entomological Science 2012. doi:10.18474/0749-8004-47.1.44

Other claims from this paper (7)

Intervention effect Intermediate combined insect density reduced canola grain yield under severe dryness.
Intervention effect High combined insect density reduced canola grain yield under severe dryness.
Intervention effect Intermediate combined insect density reduced raceme number and pods per raceme under severe dryness.
Intervention effect High combined insect density reduced raceme number and pods per raceme under severe dryness.
Intervention effect In more humid 2002 conditions, weevil damage at 20 adults per cage was more apparent than in 2000.
Intervention effect At low or moderate densities, late-season pests did not appear to stimulate canola overcompensation.
Observation The study found no indication of competition between the two insect pests.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Halving insect visits caused little decrease in sunflower yield.

Taxon: sunflowerHelianthus annuuse1
Treatment: insect visits were reduced by 50%e0
Outcome: yielde0
Direction: little decreasee0
Value: 50%e0

Not reportedComparator

Verbatim

e0
“little decrease in yield when insect visits were reduced by 50%”
✓ located verbatim in the source · abstract, characters 630–693

e1
“in sunflower”
✓ located verbatim in the source · abstract, characters 208–220

Title

Supplementary material from "Pollination benefits are maximized at intermediate nutrient levels"

Tamburini, Giovanni; Lami, Francesco; Marini, Lorenzo Figshare 2017. doi:10.6084/m9.figshare.c.3827959.v2

Other claims from this paper (5)

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

High-rate controlled-release urea (HN) did not significantly decrease rice yield compared with conventional urea (FP).

Taxon: riceOryza sativae0
Treatment: HNe0
Outcome: rice yielde0
Direction: did not decreasee0
Comparator: FPe0

Verbatim

e0
“As compared with FP, HN did not decrease rice yield significantly”
✓ located verbatim in the source · abstract, characters 370–435

Title

[Effects of seeding-box total fertilization on rice yield and nitrogen loss].

Ru-Liang Liu; You-Hong Li; Ai-Ping Zhang; et al. PubMed 2012

Other claims from this paper (7)

Intervention effect Medium-rate controlled-release urea (MN) increased the two-year average nitrogen use efficiency of rice by 26.2% compared with FP.
Intervention effect High-rate controlled-release urea (HN) increased the two-year average nitrogen use efficiency of rice by 20.7% compared with FP.
Intervention effect Total N concentration in surface water peaked 7-9 days after urea application in MN and HN, versus 1-3 days in FP.
Intervention effect Total N concentration in surface water in MN and HN was significantly lower than in FP throughout the rice growth period.
Intervention effect Nitrogen leaching loss occurred mainly at tillering stage in FP but was delayed to the tillering-flowering stage in MN and HN.
Observation In all treatments NO3(-)-N loss accounted for 59.7%-64.2% of the total N loss.
Intervention effect HN decreased total N leaching loss by 51.8% compared with FP.

Associationauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Minimum temperature is likely to decrease yield variability.

Taxon: Aman ricee0
Treatment: minimum temperaturee0
Outcome: yield variabilitye0
Direction: decreasee0
Qualifier: likelye0

Verbatim

e0
“maximum temperature is risk-increasing for Aman rice while minimum temperature is likely to decrease yield variability”
✓ located verbatim in the source · abstract, characters 522–640

Title

Performance of rain-fed Aman rice yield in Bangladesh in the presence of climate change

Md. Abdur Rashid Sarker; Khorshed Alam; Jeff Gow Renewable Agriculture and Food Systems 2017. doi:10.1017/s1742170517000473

Other claims from this paper (7)

Association Maximum temperature changes had positive yield effects in the linear functional form.
Association Maximum temperature changes had negative yield effects in the quadratic functional form.
Association Maximum temperature increases Aman rice yield risk.
Association Rainfall has become risk-increasing for Aman rice.
Association Future climate change is projected to increase yield variability under three scenarios.
Association Climate-zone dummy variables were statistically significant.
Recommendation Zone-specific adaptation policies are required to reduce climate-change impacts.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Local tarom was the most cold-sensitive variety, with 29% yield decrease.

Taxon: riceOryza sativat0
Material: local tarom varietye0
Outcome: yield decreasee0
Direction: moste0
Value: 29%e0

Verbatim

e0
“the most sensitive one with most percentage of yield decrease (29%) was local tarom variety.”
✓ located verbatim in the source · abstract, characters 1547–1639

t0
“Rice Cultivars”
✓ located verbatim in the source · title, characters 62–76

Title

Temperature Effect on Yield and Yield Components of Different Rice Cultivars in Flowering Stage

R. Ghadirnezhad; A. Fallah International Journal of Agronomy 2014. doi:10.1155/2014/846707

Other claims from this paper (5)

Intervention effect Low temperature significantly affected panicle number.
Intervention effect Low temperature significantly affected panicle length.
Intervention effect Low temperature significantly affected numbers of full, empty and total grains.
Intervention effect Low temperature significantly reduced rice yield.
Observation Shirudi was the most cold-tolerant variety, with 19% yield decrease.

Associationobservedoriginal resultnegativesimulated

Claim · model-written summary

Yield decrease was associated with shorter growth duration together with increasing temperature.

Taxon: riceOryza sativae0
Treatment: increasing temperaturee7
Outcome: Decrease in yielde7
Direction: Decreasee7
Qualifier: lowering growth duratione7

Verbatim

e0
“impact of climate change on rice production”
✓ located verbatim in the source · abstract, characters 529–572

e7
“Decrease in yield were mainly associated with lowering growth duration along with increasing temperature”
✓ located verbatim in the source · abstract, characters 2152–2256

Title

Modeling the sensitivity of CERES-Rice model: An experience of Nepal

A Lamsal; LP Amgai; A Giri Agronomy Journal of Nepal 2013. doi:10.3126/ajn.v3i0.8982

Other claims from this paper (15)

Method / resource The CSM-CERES-Rice model had an RMSE of 747.35 kg/ha for grain yield.
Method / resource The CSM-CERES-Rice model had a D-stat of 0.793 for grain yield.
Method / resource The CSM-CERES-Rice model had an RMSE of 1.106 days for anthesis.
Method / resource The CSM-CERES-Rice model had an RMSE of 2.58 days for maturity.
Method / resource The CSM-CERES-Rice model had a D-stat of 0.99 for anthesis and maturity.
Method / resource The CSM-CERES-Rice model had an RMSE of 0.004 kg/ha for individual grain weight.
Method / resource The CSM-CERES-Rice model had a D-stat of 0.633 for individual grain weight.
Intervention effect Under decreasing climatic scenarios, simulated Prithivi yield increased by 62%.
Intervention effect Under decreasing climatic scenarios, simulated Masuli yield increased by 41%.
Intervention effect Under decreasing climatic scenarios, simulated Sunaulo Sugandha yield increased by 42%.
Intervention effect Under increasing climate change scenarios, simulated Prithivi yield declined by 80%.
Intervention effect Under increasing climate change scenarios, simulated Masuli yield declined by 46%.
Intervention effect Under increasing climate change scenarios, simulated Sunaulo Sugandha yield declined by 40%.
Association Temperature was the most sensitive factor for simulated rice yield potential compared with other factors.
Association Hybrid rice showed more vulnerability to climate change than the other cultivars.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Cluster pruning did not decrease total yield across cultivars.

Taxon: TomatoSolanum lycopersicumt0
Treatment: treatmentse0
Outcome: total yielde0
Direction: no decreasee0
Comparator: unpruned controle0

Verbatim

e0
“There was no decrease in total yield, across all cultivars, between treatments and the unpruned control.”
✓ located verbatim in the source · abstract, characters 1976–2080

t0
“Tomato”
✓ located verbatim in the source · title, characters 25–31

Title

Fruit Cluster Pruning of Tomato in an Organic High-Tunnel System

Brian A. Mitchell; Mark E. Uchanski; Adriane Elliott HortScience 2019. doi:10.21273/hortsci13487-18

Other claims from this paper (7)

Intervention effect Three-fruit pruning increased fresh fruit weight in both hybrids.
Intervention effect Cherokee Purple did not respond to cluster pruning.
Observation Jet Star yielded more than the other two cultivars.
Association SSC and marketability depended more on cultivar than pruning.
Observation Lola had significantly greater SSC than the other cultivars.
Observation Jet Star had the greatest marketable yield.
Observation Cherokee Purple had greater cull yield.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cocoa with cassava had a slight yield decrease.

Taxon: cocoaTheobroma cacaoe0
Treatment: cocoa/cassava combinatione0
Outcome: yielde0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“cocoa/cassava combination where there was a slight decrease in yield”
✓ located verbatim in the source · abstract, characters 1521–1589

Title

Long Term Assessment Of The Agronomic And Economic Benefits Of Cocoa Food Crop Intercropping In The Absence Of Fertilizer Application

Opoku-Ameyaw, K.; Oppong, F. K.; Acheampong, K.; et al. Zenodo (CERN European Organization for Nuclear Research) 2012. doi:10.5281/zenodo.8168

Other claims from this paper (7)

Intervention effect Cocoa with plantain reduced seedling girth in year two.
Intervention effect Treatments did not significantly affect cocoa height.
Observation The four crop intercrop had the lowest soil N, P and K, without significance.
Intervention effect Intercropped cocoa yielded 28-60% more beans than sole cocoa, except cocoa with cassava.
Observation Intercropping was profitable.
Association Plantain and maize combinations produced higher net benefits.
Recommendation The authors recommend intercropping during establishment.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Halving insect visits caused little sunflower yield decrease.

Taxon: sunflowerHelianthus annuust0
Treatment: insect visits were reduced by 50%e0
Outcome: yielde0
Direction: little decreasee0

Not reportedComparator

Verbatim

e0
“little decrease in yield when insect visits were reduced by 50%”
✓ located verbatim in the source · abstract, characters 632–695

t0
“in sunflower, combining a gradient in insect pollination”
✓ located verbatim in the source · abstract, characters 208–264

Title

Pollination benefits are maximized at intermediate nutrient levels

Giovanni Tamburini; Francesco Lami; Lorenzo Marini Proceedings of the Royal Society B Biological Sciences 2017. doi:10.1098/rspb.2017.0729

Other claims from this paper (4)

Association Pollination benefits to sunflower yield peaked at intermediate N supply.
Intervention effect Pollination increased sunflower yield about 25% versus complete pollinator exclusion.
Association The authors found a nonlinear pollination by nutrient interaction in seed production.
Recommendation Optimal pollination could compensate for lower nitrogen applications.

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