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“yield decrease”

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plus 6 earlier · 1930s

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Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Narrow rows did not decrease common ragweed seed production.

Taxon: SoybeanGlycine maxt0
Treatment: Narrow rowse0
Interactor: common ragweedAmbrosia artemisiifoliae0weed
Outcome: giant foxtail, common ragweed, and ivyleaf morningglory seed productione0
Direction: did not decreasee0

Not reportedComparator

Verbatim

e0
“Narrow rows did not decrease giant foxtail, common ragweed, and ivyleaf morningglory seed production”
✓ located verbatim in the source · abstract, characters 1683–1783

t0
“Soybean”
✓ located verbatim in the source · title, characters 67–74

Title

Influence of Early-Season Yield Loss Predictions from WeedSOFT^®and Soybean Row Spacing on Weed Seed Production from a Mixed-Weed Community

Andrew A. Schmidt; William G. Johnson Weed Technology 2004. doi:10.1614/wt-03-150r1

Other claims from this paper (9)

Intervention effect Treatments providing at least 90% weed control usually reduced seed production versus untreated checks.
Association Seed production had a linear relation to early herbicide efficacy for predominant weeds, with r² at least 0.52.
Association For less dominant weeds, seed production was weakly correlated with early herbicide efficacy, r² at most 0.27.
Association For less dominant weeds, seed production was apparently influenced by control of other weed species.
Intervention effect Narrow rows reduced giant foxtail biomass in both years.
Intervention effect Narrow rows did not reduce common ragweed biomass.
Intervention effect Narrow rows did not reduce ivyleaf morningglory biomass.
Intervention effect Narrow rows did not decrease giant foxtail seed production.
Intervention effect Narrow rows did not decrease ivyleaf morningglory seed production.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Narrow rows did not decrease ivyleaf morningglory seed production.

Taxon: SoybeanGlycine maxt0
Treatment: Narrow rowse0
Interactor: ivyleaf morninggloryIpomoea hederaceae0weed
Outcome: giant foxtail, common ragweed, and ivyleaf morningglory seed productione0
Direction: did not decreasee0

Not reportedComparator

Verbatim

e0
“Narrow rows did not decrease giant foxtail, common ragweed, and ivyleaf morningglory seed production”
✓ located verbatim in the source · abstract, characters 1683–1783

t0
“Soybean”
✓ located verbatim in the source · title, characters 67–74

Title

Influence of Early-Season Yield Loss Predictions from WeedSOFT^®and Soybean Row Spacing on Weed Seed Production from a Mixed-Weed Community

Andrew A. Schmidt; William G. Johnson Weed Technology 2004. doi:10.1614/wt-03-150r1

Other claims from this paper (9)

Intervention effect Treatments providing at least 90% weed control usually reduced seed production versus untreated checks.
Association Seed production had a linear relation to early herbicide efficacy for predominant weeds, with r² at least 0.52.
Association For less dominant weeds, seed production was weakly correlated with early herbicide efficacy, r² at most 0.27.
Association For less dominant weeds, seed production was apparently influenced by control of other weed species.
Intervention effect Narrow rows reduced giant foxtail biomass in both years.
Intervention effect Narrow rows did not reduce common ragweed biomass.
Intervention effect Narrow rows did not reduce ivyleaf morningglory biomass.
Intervention effect Narrow rows did not decrease giant foxtail seed production.
Intervention effect Narrow rows did not decrease common ragweed seed production.

Intervention effectobservedoriginal resultno effectnot significant (as stated)simulated

Claim · model-written summary

The increased N/maize price ratio did not significantly decrease economic optimum yields and net income.

Taxon: maizeZea mayst0
Treatment: the increased N/maize price ratioe0
Outcome: economic optimum yields and the net incomee2
Direction: decreasee2
Comparator: the current N/maize price ratioe1

Verbatim

t0
“NITROGEN FERTILIZATION FOR MAIZE”
✓ located verbatim in the source · title, characters 0–32

e0
“the increased N/maize price ratio, that reduced the economic optimum N rates and fertilization costs”
✓ located verbatim in the source · abstract, characters 1496–1596

e1
“the current N/maize price ratio for the attainable yield classes”
✓ located verbatim in the source · abstract, characters 1338–1402

e2
“without significantly decrease of the economic optimum yields and the net income”
✓ located verbatim in the source · abstract, characters 1598–1678

Title

NITROGEN FERTILIZATION FOR MAIZE BASED ON ATTAINABLE YIELD AND SOIL ORGANIC MATTER CONTENT

Mariana Margarita Sánchez-Roldán; Iván Ortiz-Monasterio; Víctor Hugo Volke-Haller; et al. Agrociencia 2022. doi:10.47163/agrociencia.v56i4.2808

Other claims from this paper (2)

Intervention effect An increased N/maize price ratio reduced economic optimum N rates and fertilization costs for maize relative to the current price ratio.
Intervention effect The increased N/maize price ratio also reduces N losses and environmental pollution.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Retaining two or three flowers per bearing shoot did not decrease yield.

Taxon: KiwifruitActinidia deliciosat0
Material: ‘Rainbow Red’t0
Treatment: two or three per bearing shoote0
Outcome: yielde0
Direction: without decreasinge0

Not reportedComparator

Verbatim

e0
“if the number of flowers was two or three per bearing shoot, the quantity of dry pollen mixture sprayed could be reduced without decreasing the yield.”
✓ located verbatim in the source · abstract, characters 310–460

t0
“‘Rainbow Red’ Kiwifruit (Actinidia chinensis)”
✓ located verbatim in the source · title, characters 135–180

Title

Study of Pollination Method, Disbudding and Dilution of Pollen on Artificial Pollination for Purpose of Reducing Pollen Consumption in ‘Rainbow Red’ Kiwifruit (Actinidia chinensis)

Satoru Murakami; Kazuki Yamaguchi Horticultural Research (Japan) 2017. doi:10.2503/hrj.16.333

Other claims from this paper (7)

Intervention effect A rechargeable pollen dust sprayer reduced dry pollen mixture volume.
Intervention effect A rechargeable pollen dust sprayer reduced work time.
Intervention effect Retaining two or three flowers per bearing shoot reduced dry pollen mixture use.
Intervention effect Pollen mixture dilution below 5% reduced seed number.
Intervention effect Pollen mixture dilution below 5% increased malformed fruit incidence.
Recommendation The authors recommend pollen mixture dilution above 6.7%.
Recommendation The authors recommend combining sprayers, two or three pollinating flowers, and dilution above 6.7% to reduce pollen use.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Rowcovers did not change total yield.

Taxon: blackberryRubuse1
Treatment: Rowcover treatmentse0
Outcome: totale0
Direction: did not increase or decreasee0

Not reportedComparator

Verbatim

e0
“Rowcover treatments did not increase or decrease either total or marketable yield in any of the experimental cultivars in either year.”
✓ located verbatim in the source · abstract, characters 830–964

e1
“experimental blackberry ( Rubus spp.) cultivars”
✓ located verbatim in the source · abstract, characters 40–87

Title

Performance of Primocane-fruiting Experimental Blackberry Cultivars in the Southern Appalachian Mountains

Gina E. Fernandez; James R. Ballington HortTechnology 2010. doi:10.21273/hortsci.20.6.996

Other claims from this paper (12)

Observation Five experimental cultivars had comparable high total yield in 2007.
Observation Three cultivars had comparable marketable yield in 2007.
Observation APF-27 had significantly higher total yield in 2008.
Observation APF-46 had significantly higher total yield in 2008.
Observation APF-27 had significantly higher marketable yield in 2008.
Observation APF-46 had significantly higher marketable yield in 2008.
Intervention effect Rowcovers did not change marketable yield.
Intervention effect Rowcovers did not advance 5% harvest.
Intervention effect Rowcovers did not advance 50% harvest.
Observation APF selections had higher second year yield than NC selections.
Observation Primocane experimental cultivars yielded less than floricane blackberries.
Recommendation Rowcovers were judged unsuitable for advancing blackberry harvest in these conditions.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Rowcovers did not change marketable yield.

Taxon: blackberryRubuse1
Treatment: Rowcover treatmentse0
Outcome: marketablee0
Direction: did not increase or decreasee0

Not reportedComparator

Verbatim

e0
“Rowcover treatments did not increase or decrease either total or marketable yield in any of the experimental cultivars in either year.”
✓ located verbatim in the source · abstract, characters 830–964

e1
“experimental blackberry ( Rubus spp.) cultivars”
✓ located verbatim in the source · abstract, characters 40–87

Title

Performance of Primocane-fruiting Experimental Blackberry Cultivars in the Southern Appalachian Mountains

Gina E. Fernandez; James R. Ballington HortTechnology 2010. doi:10.21273/hortsci.20.6.996

Other claims from this paper (12)

Observation Five experimental cultivars had comparable high total yield in 2007.
Observation Three cultivars had comparable marketable yield in 2007.
Observation APF-27 had significantly higher total yield in 2008.
Observation APF-46 had significantly higher total yield in 2008.
Observation APF-27 had significantly higher marketable yield in 2008.
Observation APF-46 had significantly higher marketable yield in 2008.
Intervention effect Rowcovers did not change total yield.
Intervention effect Rowcovers did not advance 5% harvest.
Intervention effect Rowcovers did not advance 50% harvest.
Observation APF selections had higher second year yield than NC selections.
Observation Primocane experimental cultivars yielded less than floricane blackberries.
Recommendation Rowcovers were judged unsuitable for advancing blackberry harvest in these conditions.

Method / resourceobservedoriginal resultno effectnot significant (as stated)simulated

Claim · model-written summary

The controller caused no significant decrease in simulated maize leaf area index relative to constant irrigation.

Taxon: maizeZea mayse1
Outcome: leaf area indexe0
Direction: without any significant decreasee0
Comparator: constant irrigation method of the DSSAT modele0

Verbatim

e0
“almost 40% decrease in water consumption is achieved in comparison to constant irrigation method of the DSSAT model without any significant decrease in yield and leaf area index.”
✓ located verbatim in the source · abstract, characters 2249–2427

e1
“DSSAT (Decision Support System for Agro-technology Transfer) maize crop simulation model”
✓ located verbatim in the source · abstract, characters 1911–1999

Title

Reinforcement Learning Based Controller For Precision Irrigation

Shivaram Irukula OakTrust (Texas A&M University Libraries) 2015

Other claims from this paper (2)

Associationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

PRD75 non-significantly decreased maize yield while saving 25% of water use

Taxon: maizeZea mayse5
Treatment: PRD75e5
Outcome: yielde5
Direction: decreasee5
Qualifier: saving 25% of water usee5

Verbatim

e5
“PRD75 improved the quality traits of maize yield and non-significantly decrease of yield with saving 25% of water use during the treatment period”
✓ located verbatim in the source · abstract, characters 1115–1260

Title

Investigation of Quantity and Quality Traits of Maize Yield under Partial Root Zone Drying and Deficit Irrigation Strategies

Elaheh IshaghiNasrabadi; Ali Shahnazari; Mirkhalegh Ziatabarahmadi; et al. DOAJ (DOAJ: Directory of Open Access Journals) 2014

Other claims from this paper (5)

Intervention effect Deficit irrigation treatments PRD75 and DI75 significantly increased grain protein content relative to full irrigation
Association PRD75 gave the highest protein percentage of maize grain yield (10.02%)
Association PRD55 gave the lowest protein percentage of maize grain yield (9.14%)
Intervention effect PRD75 did not significantly change thousand seed weight, kernel number per row or row number per ear relative to full irrigation
Association PRD75 improved the quality traits of maize

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Halving the original N rate did not significantly decrease wheat grain yield or N uptake, except at N120.

Taxon: wheatTriticum aestivume5
Treatment: half reduction of original N ratee5
Outcome: grain yield and N uptakee5
Direction: not significantly declinede5
Qualifier: except the treatment N120e5
Comparator: original N ratee5

Verbatim

t0
“winter wheat-summer maize cropping system”
✓ located verbatim in the source · title, characters 65–106

e5
“The grain yield and N uptake of wheat were not significantly declined with the half reduction of original N rate except the treatment N120”
✓ located verbatim in the source · abstract, characters 874–1012

Title

[Effect of reduced N application on N utilization and balance in winter wheat-summer maize cropping system].

Xuejun Liu; Xiaotang Ju; Fusuo Zhang PubMed 2004

Other claims from this paper (11)

Observation Wheat grain yield reached a plateau at N120 and did not rise further with higher N rates.
Observation Maize grain yield reached a plateau at N120 and did not rise further with higher N rates.
Observation Wheat N uptake followed the same tendency as its yield across N rates.
Observation Maize N uptake followed the same tendency as its yield across N rates.
Intervention effect In maize, grain yield and N uptake significantly declined when N fertilizer was reduced to zero.
Intervention effect Reduced N sub-plots had significantly lower residual NO3-N in the 0-1 m soil layer than plots at the original N rate.
Intervention effect Residual NO3-N in the 1-2 m soil layer did not differ between reduced and original N rates.
Intervention effect Reducing N fertilizer largely raised N recovery by crops.
Association The apparent N loss rate decreased in the wheat-maize rotation with reduced N fertilizer.
Intervention effect Reducing fertilizer N under a high N rate can significantly increase N use efficiency.
Intervention effect Reducing fertilizer N under a high N rate can significantly reduce NO3-N accumulation and apparent N loss.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Deep-flood irrigation did not decrease rice yield.

Taxon: RiceOryza sativat0
Treatment: deep-flood irrigation (DFI)e1
Outcome: yieldse0
Direction: without decreasinge0
Comparator: normal temperature conditionse1

Verbatim

e0
“without decreasing yields”
✓ located verbatim in the source · abstract, characters 337–362

t0
“Rice”
✓ located verbatim in the source · title, characters 15–19

e1
“deep-flood irrigation (DFI) to a water depth of 18 cm from the active tillering stage to the maximum tillering stage suppresses the occurrence of chalky grains under both high and normal temperature conditions without decreasing yields”
✓ located verbatim in the source · abstract, characters 127–362

Title

Improvement in Rice Grain Quality by Deep-flood Irrigation and its Underlying Mechanisms

Masahiro CHIBA; Tomio TERAO; Hajime WATANABE; et al. Japan Agricultural Research Quarterly JARQ 2017. doi:10.6090/jarq.51.107

Other claims from this paper (6)

Intervention effect Deep-flood irrigation at 18 cm suppressed chalky grains under high and normal temperatures.
Mechanism Deep-flood irrigation increased carbohydrate supply to panicles, explaining suppression of chalky grains.
Recommendation Moderate DFI at 10 cm with deep planting can produce high quality rice where 18 cm depth is not possible.
Intervention effect DFI did not damage root activity at ripening, even in low-redox soils.
Intervention effect DFI slightly decreased soil penetration resistance.
Intervention effect DFI did not affect bearing capacity at combine harvest.

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“yield decrease”

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