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“yield decrease”

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plus 66 non-evaluative

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Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

A 58% population decrease caused only a 12% soybean yield decrease.

Taxon: SoybeanGlycine maxe1
Treatment: 58% population decreasee0
Outcome: yielde0
Direction: decreasee0
Value: 12%e0
Comparator: 164 000 plants ha −le0

Verbatim

e0
“A 58% population decrease from 164 000 plants ha −l resulted in a yield decrease of only 12%”
✓ located verbatim in the source · abstract, characters 880–972

e1
“Soybean [ Glycine max (L.) Merr.]”
✓ located verbatim in the source · abstract, characters 0–33

Title

Branch Yield Components Controlling Soybean Yield Stability across Plant Populations

A. C. Carpenter; J. E. Board Crop Science 1997. doi:10.2135/cropsci1997.0011183x003700030031x

Other claims from this paper (8)

Intervention effect A 43% population increase produced no significant soybean yield change.
Observation Branch dry matter averaged 14.0 g per plant at low population.
Observation Branch dry matter averaged 5.3 g per plant at medium population.
Observation Branch dry matter averaged 3.6 g per plant at high population.
Association Greater branch dry matter yielded more branch nodes, reproductive nodes and pods.
Association Pods per reproductive branch node affected yield in some cases.
Association Branch dry matter correlated strongly with yield at r squared 0.95.
Method / resource Branch dry matter was useful for identifying cultivars with low optimal population.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

KCl tended to decrease yield in all cultivars.

Treatment: KCl treatmente0
Outcome: yielde0
Direction: decreasee0
Qualifier: all cultivarse0

Not reportedTaxonComparator

Verbatim

e0
“In KCl treatment yield tended to decrease in all cultivars.”
✓ located verbatim in the source · abstract, characters 971–1030

Title

水耕ミニトマトの果実品質,収量及び生育に及ぼす塩化カリウム及び硫酸カリウム添加処理の影響

太田, 勝巳; 伊藤, 憲弘; 細木, 高志; et al. Institutional Repositories DataBase (IRDB) 1990

Other claims from this paper (12)

Intervention effect KCl increased soluble solids, sugar, acidity and fruit dry matter in three cultivars.
Intervention effect KCl decreased fruit weight in three cultivars.
Intervention effect K_2S0_4 increased fruit solids, sugar and dry matter less than KCl.
Intervention effect Fruit weight under K_2S0_4 equaled or tended to exceed control in all cultivars.
Intervention effect K_2S0_4 increased solid-acid ratio in Sun Cherry and Akakokko.
Intervention effect KCl decreased solid-acid ratio in Sun Cherry and Akakokko because acidity rose.
Observation Fruit hardness did not differ among treatments.
Intervention effect KCl decreased cherry tomato leaf length, width, mass and area.
Intervention effect Under K_2S0_4, cherry tomato leaf measures equaled or increased relative to control.
Observation Stem diameter did not differ among treatments.
Observation KCl improved fruit quality with lower yield versus the 2.0-unit control.
Observation K_2S0_4 maintained fruit quality and yield versus control.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Damage around tasseling-anthesis caused the greatest yield decrease in forage maize.

Organ / stage: tasseling‐anthesise0
Treatment: treatmentse0
Outcome: yielde0
Direction: Decreasee0

Not reportedTaxonComparator

Verbatim

e0
“Decrease of yield was the highest when treatments were applied around tasseling‐anthesis”
✓ located verbatim in the source · abstract, characters 247–335

Title

Effects of Simulated Hail Damage on the Yield of Forage Maize

G. Trappeniers; J. F. Ledent; O. Fayt; et al. Journal of Agronomy and Crop Science 1992. doi:10.1111/j.1439-037x.1992.tb00972.x

Other claims from this paper (2)

Intervention effect Leaf tearing alone had little effect on total dry matter yield of forage maize.
Intervention effect Simulated hail damage had small effects on forage maize dry matter content.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Root yield had no or a slight decrease above its nitrogen optimum.

Taxon: Sugar BeetBeta vulgaris subsp. vulgarist0
Outcome: Root yielde0
Direction: no or only a slight decreasee0

Not reportedTreatmentComparator

Verbatim

e0
“Root yield showed no or only a slight decrease”
✓ located verbatim in the source · abstract, characters 368–414

t0
“Sugar Beet”
✓ located verbatim in the source · title, characters 53–63

Title

Influence of Nitrogen Supply on Yield and Quality of Sugar Beet

Bernward Märländer Zeitschrift für Pflanzenernährung und Bodenkunde 1990. doi:10.1002/jpln.19901530508

Other claims from this paper (15)

Intervention effect Root yield increased with nitrogen supply, peaking at 159 kg N/ha.
Intervention effect Sugar yield increased with nitrogen supply, peaking at 136 kg N/ha.
Intervention effect White sugar yield increased with nitrogen supply, peaking at 129 kg N/ha.
Intervention effect Sugar and white sugar yield fell at nitrogen levels above optimum.
Intervention effect Sugar concentration decreased as nitrogen supply increased.
Intervention effect White sugar concentration decreased as nitrogen supply increased, with a greater response than sugar concentration.
Observation Sugar concentration was highest at 32 kg N/ha.
Intervention effect Sugar concentration declined slightly at nitrogen supply below 32 kg N/ha.
Intervention effect Potassium concentration was unchanged with more nitrogen.
Intervention effect Amino-N concentration increased greatly with more nitrogen.
Intervention effect Sodium concentration increased slightly with more nitrogen, with its minimum at 36 kg N/ha.
Intervention effect Sodium rose very slightly below 36 kg N/ha.
Observation Sugar loss responded less to nitrogen than sodium and amino-N concentrations.
Observation Sugar gain responded less than sugar loss.
Observation White sugar yield dropped only 2% over a nitrogen range of about 100 kg N/ha around its broad optimum.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Delayed autumn ploughing did not decrease grain yield.

Taxon: spring barleyHordeum vulgaree1
Treatment: delayed autumn ploughinge0
Outcome: grain yielde0
Direction: did not decreasee0

Not reportedComparator

Verbatim

e0
“Because delayed autumn ploughing did not decrease the grain yield”
✓ located verbatim in the source · abstract, characters 902–967

e1
“grain yield of spring barley”
✓ located verbatim in the source · abstract, characters 628–656

Title

The effect of incorporation time of different crops on the residual effect on spring cereals

H. KÄNKÄNEN; A. KANGAS; T. MELA Agricultural and Food Science 1999. doi:10.23986/afsci.5629

Other claims from this paper (7)

Intervention effect Barley grain yield after legumes was similar to yield after barley despite 40 kg ha-1 less N fertilization.
Intervention effect Autumn ploughing gave good barley yield more reliably than spring incorporation.
Recommendation The authors recommend delayed autumn ploughing for its potential to reduce nitrogen leaching.
Recommendation Spring ploughing could be used except on clay soils.
Intervention effect Reduced tillage spring incorporation of ryegrass often decreased barley yield.
Intervention effect Reduced tillage spring incorporation of red clover often decreased barley yield.
Intervention effect Incorporation timing had no consistent effect on oats grain yield in year three.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

POST treatments did not decrease leafy crop yield versus a hand-weeded check.

Taxon: leafy crope0
Treatment: POST treatmentse0
Outcome: yielde0
Direction: did not decreasee0
Comparator: hand-weeded checke0

Verbatim

e0
“POST treatments did not decrease leafy crop yield compared with the hand-weeded check”
✓ located verbatim in the source · abstract, characters 991–1076

Title

Evaluation of Imazethapyr for Weed Control in Leafy Vegetable Crops

Joan A. Dusky; William M. Stall Weed Technology 1996. doi:10.1017/s0890037x00039907

Other claims from this paper (11)

Observation PRE imazethapyr sensitivity ranked Boston above bibb, crisphead, romaine, leaf, escarole and endive.
Association POST imazethapyr crop injury increased with application rate, similarly across leafy crops.
Intervention effect Surfactant addition increased imazethapyr phytotoxicity.
Intervention effect PRE imazethapyr at 0.067 kg ai/ha controlled livid amaranth by over 80%.
Intervention effect PRE imazethapyr at 0.067 kg ai/ha controlled common purslane by over 80%.
Intervention effect PRE imazethapyr at 0.067 kg ai/ha controlled flatsedge by over 80%.
Intervention effect PRE imazethapyr at 0.067 kg ai/ha controlled common lambsquarters by over 80%.
Intervention effect POST imazethapyr with surfactant controlled all weed species by over 85%.
Intervention effect POST imazethapyr at 0.017 kg/ha controlled spiny amaranth by over 85%.
Intervention effect Surfactant did not improve spiny amaranth control with imazethapyr.
Intervention effect PRE imazethapyr reduced crop yield relative to POST and hand-weeded controls.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Herbicide injury and defoliation interacted to decrease soybean yield.

Taxon: soybeanGlycine maxe1
Treatment: herbicide injury and defoliatione3
Outcome: yielde3
Direction: decreasee3
Qualifier: interacted over 1990 and 1991e3

Not reportedComparator

Verbatim

e1
“seed yield of soybean [ Glycine max (L.) Merr.]”
✓ located verbatim in the source · abstract, characters 525–572

e3
“Moreover, herbicide injury and defoliation interacted over 1990 and 1991 to decrease yield”
✓ located verbatim in the source · abstract, characters 1207–1297

Title

Soybean Yield and Pest Management as Influenced by Nematodes, Herbicides, and Defoliating Insects

J. A. Browde; L. P. Pedigo; M. D. K. Owen; et al. Agronomy Journal 1994. doi:10.2134/agronj1994.00021962008600040005x

Other claims from this paper (10)

Intervention effect Herbicide injury reduced soybean yield in 1990 and 1991.
Intervention effect Defoliation reduced soybean yield in 1990 and 1991.
Intervention effect Defoliation reduced pods per plant in soybean.
Intervention effect Herbicide injury decreased pods per plant in soybean in 1990.
Intervention effect Herbicide injury decreased weight per seed in soybean in 1990 and 1991.
Intervention effect Soybean cyst nematode stress alone never affected soybean yield.
Intervention effect Interactions of soybean cyst nematode with herbicides and with defoliation reduced soybean yield in 1990.
Observation No treatment effects on soybean yield were found in 1989.
Recommendation Lower economic injury levels for green cloverworm were developed for soybean treated with acifluorfen plus bentazon.
Recommendation Growers should consider adjusting weed and insect management strategies for soybean fields infested with soybean cyst nematode.

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Vegetative-stage ozone exposure caused no significant fruit yield decrease at final harvest.

Taxon: tomatoSolanum lycopersicumt0
Treatment: O 3 exposure at the vegetative stagee0
Outcome: fruit yielde0
Direction: no significant decreasee0

Not reportedComparator

Verbatim

e0
“O 3 exposure at the vegetative stage, there was no significant decrease in fruit yield”
✓ located verbatim in the source · abstract, characters 733–819

t0
“Tomato”
✓ located verbatim in the source · title, characters 12–18

Title

Recovery of Tomato Plants from Ozone Injury

Albert Z. Tenga; Beverley A. Marie; Douglas P. Ormrod HortScience 1990. doi:10.21273/hortsci.25.10.1230

Other claims from this paper (5)

Intervention effect Ozone exposure caused visible leaf injury at either growth stage.
Intervention effect Ozone exposure reduced leaf area at either growth stage.
Intervention effect Vegetative-stage ozone exposure caused no fruit quality change at final harvest.
Intervention effect Flowering-stage ozone exposure progressively reduced fruit fresh weight.
Intervention effect Flowering-stage ozone exposure reduced fruit titratable acidity to a lesser degree.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Bromoxynil did not decrease mean yield of the three rice cultivars.

Taxon: RiceOryza sativat0
Treatment: Bromoxynile0
Outcome: average yielde0
Direction: did not decreasee0

Not reportedComparator

Verbatim

e0
“Bromoxynil did not decrease the average yield of any of the three cultivars.”
✓ located verbatim in the source · abstract, characters 855–931

t0
“Rice (Oryza sativa)”
✓ located verbatim in the source · title, characters 22–41

Title

Varietal Tolerance of Rice (Oryza sativa) to Bromoxynil and Triclopyr at Different Growth Stages

Dan J. Pantone; John B. Baker Weed Technology 1992. doi:10.1017/s0890037x00036551

Other claims from this paper (9)

Observation Tebonnet rice had 15% visible injury after triclopyr, averaged across rates and application times.
Observation Mars rice had 16% visible injury after triclopyr, averaged across rates and application times.
Observation Lemont rice had 25% visible injury after triclopyr, averaged across rates and application times.
Observation Tebonnet rice had 11% visible injury after bromoxynil.
Observation Mars rice had 8% visible injury after bromoxynil.
Observation Lemont rice had 7% visible injury after bromoxynil.
Observation Tebonnet was more tolerant than Lemont to triclopyr, with 6% mean grain yield reduction.
Observation Mars had 9% mean grain yield reduction from triclopyr.
Observation Lemont had 12% mean grain yield reduction from triclopyr.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Intercropping caused a 20% yield decrease in water melon.

Taxon: water melonCitrullus lanatuse2
Treatment: Intercroppinge2
Outcome: yielde2
Direction: decreasee2
Value: 20%e2

Not reportedComparator

Verbatim

e2
“Intercropping did not significantly influence bunch yield of plantain but it caused a 2–7 and 20% yield decrease in egusi melon and water melon respectively”
✓ located verbatim in the source · abstract, characters 472–628

Title

Productivity of Plantain (MusaAAB)-Melon Mixtures in South Western Nigeria

M. A. Jolaoso; I. M. Ojeifo; I. O.O. Aiyelaagbe Biological Agriculture & Horticulture 1996. doi:10.1080/01448765.1996.9754791

Other claims from this paper (6)

Intervention effect Intercropping with 5000 and 6666 melon plants ha−1 significantly decreased plantain leaf area.
Intervention effect Intercropping did not significantly influence plantain bunch yield.
Intervention effect Intercropping caused a 2–7% yield decrease in egusi melon.
Observation Land Equivalent Ratios of the plantain-melon intercropped plots were 1.67, 1.69 and 1.74.
Observation Cash advantage of plantain intercropped with 3333, 5000 and 6666 melon plants ha−1 was N61400, N65700 and N72100 ha−1.
Recommendation The authors propose the plantain-melon mixture as an alternative sustainable mixture to existing plantain-based systems.

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“yield decrease”

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