Search claims · PlantClaims

Observationobservedoriginal resultnegativesimulated

Claim · model-written summary

A marginal 2.6% decrease in vegetable yield or price would make commercial organic fertilizer not superior to inorganic fertilizer.

Taxon: vegetablee0
Outcome: commercial organic fertilizer technologye3
Direction: not superiore3
Value: 2.6%e3
Qualifier: a marginal 2.6% decrease in each of yield or price of vegetablee3

Verbatim

e0
“We took a case study of users of commercial organic fertilizer (UCOF) and users of inorganic fertilizer (UIF) in vegetable production”
✓ located verbatim in the source · abstract, characters 260–393

e3
“However, either a marginal 2.6% decrease in each of yield or price of vegetable or a 32.4% increase in price of commercial organic fertilizer will make commercial organic fertilizer technology not superior to inorganic fertilizer”
✓ located verbatim in the source · abstract, characters 1021–1250

Title

Organic and inorganic fertilizer for vegetable production under tropical conditions

T. Alimi; O. C. Ajewole; O.O. Olubode-Awosola; et al. CGSPace A Repository of Agricultural Research Outputs (Consultative Group for International Agricultural Research) 2007

Other claims from this paper (9)

Associationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Vegetable yield decreased significantly with increasing altitude.

Taxon: vegetablee0
Outcome: vegetable yielde0
Direction: decreasee0
Qualifier: increasing altitudee0

Not reportedSetting

Verbatim

e0
“As with increasing altitude, the vegetable yield was found to decrease significantly, affected by the decreasing pollinators.”
✓ located verbatim in the source · abstract, characters 946–1071

Title

Pollinators of Home Garden Fruit Vegetables Along the Altitudinal Gradient in Kanglung Gewog, Trashigang, Bhutan

Namgay Rinchen; Tshering Nidup Sherub Doenme The Research Journal of Sherubtse College 2023. doi:10.17102/sherubdoenme.16.2023.01

Other claims from this paper (6)

Observation The study recorded 25 pollinator species.
Observation The study recorded 12 fruit vegetable species.
Association Pollinator richness decreased with increasing altitude.
Association Vegetable species richness decreased with increasing altitude.
Association Income was lower where fruit vegetable diversity was low.
Association Fruit set decreased with increasing altitude.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfur nutrient decreased NO3 accumulation in vegetables.

Taxon: vegetablet0
Treatment: Sulfur nutriente5
Outcome: accumulation of NO-3e5
Direction: decreasee5

Not reportedComparator

Verbatim

t0
“Effect of sulfur fertilizer on increasing vegetable yield”
✓ located verbatim in the source · title, characters 0–57

e5
“Sulfur nutrient could also improve vegetable quality and decrease accumulation of NO-3”
✓ located verbatim in the source · abstract, characters 445–531

Title

Effect of sulfur fertilizer on increasing vegetable yield and decreasing accumulation of NO~(-)_(3)

Peng Jiagui; Jie Yang; Qiong Lin; et al. Fujian nongye xuebao 2004

Other claims from this paper (10)

Observation Total S content in the vegetable soil samples was 354.9 mg·kg-1.
Observation Available S content in the vegetable soil was 26.2 mg·kg-1.
Observation Available S was below the critical value (16 mg·kg-1) in 43.6% of the vegetable soil samples.
Observation Available S accounted for 7.4% of the total S in the vegetable soil.
Intervention effect Sulfur fertilizer at 15-60 kg·hm-1 increased yields of Lactuca satiua and Brassica oleraclai.
Intervention effect Sulfur nutrient improved vegetable quality.
Intervention effect NO3 content in the center part of Lactuca satiua decreased by 13.0% to 56.0% compared with the control.
Intervention effect NO3 content in the center part of Brassica oleraclai decreased by 24.8% to 48.7% compared with the control.
Intervention effect NO3 content in the center part of swamp cabbage decreased by 8.2% to 56.0% compared with the control.
Intervention effect NO3 decrease in swamp cabbage and litter cabbage was larger in pot, liquid or net-house sulfur experiments than in field experiments.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Reducing fertilizer nitrogen did not decrease total nitrogen absorption in soils 2, 3 and 6.

Taxon: vegetablee2
Treatment: reducing N input of chemical fertilizere0
Outcome: total N absorptione0
Direction: did not decreasee0
Setting: soils 2, 3, and 6e1

Not reportedComparator

Verbatim

e0
“reducing N input of chemical fertilizer did not decrease total N absorption or dry matter production”
✓ located verbatim in the source · abstract, characters 1038–1138

e1
“in soils 2, 3, and 6 than those in the other soils”
✓ located verbatim in the source · abstract, characters 973–1023

e2
“vegetable fields’”
✓ located verbatim in the source · abstract, characters 677–694

Title

Decreasing input–output balance by reducing chemical fertilizer input without yield loss in intensive cropping system in the Coastal Area of southeast Lake Dianchi, Yunnan Province, China

Ying Wang; Takashi S.T. Tanaka; Kunzhi Li; et al. Plant Production Science 2016. doi:10.1080/1343943x.2015.1128089

Other claims from this paper (5)

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Reducing fertilizer nitrogen did not decrease dry matter production in soils 2, 3 and 6.

Taxon: vegetablee2
Treatment: reducing N input of chemical fertilizere0
Outcome: dry matter productione0
Direction: did not decreasee0
Setting: soils 2, 3, and 6e1

Not reportedComparator

Verbatim

e0
“reducing N input of chemical fertilizer did not decrease total N absorption or dry matter production”
✓ located verbatim in the source · abstract, characters 1038–1138

e1
“in soils 2, 3, and 6 than those in the other soils”
✓ located verbatim in the source · abstract, characters 973–1023

e2
“vegetable fields’”
✓ located verbatim in the source · abstract, characters 677–694

Title

Decreasing input–output balance by reducing chemical fertilizer input without yield loss in intensive cropping system in the Coastal Area of southeast Lake Dianchi, Yunnan Province, China

Ying Wang; Takashi S.T. Tanaka; Kunzhi Li; et al. Plant Production Science 2016. doi:10.1080/1343943x.2015.1128089

Other claims from this paper (5)

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Fertilizer reduction maintained vegetable yield above the stated residual nutrient thresholds.

Taxon: vegetablee0
Treatment: fertilizer reductione0
Outcome: vegetable yielde0
Direction: did not decreasee0
Qualifier: soil nitrate, Olsen–phosphorus, and exchangeable potassium were ≥173.3, 45.8, and 93.1 mg kg−1e0

Not reportedComparator

Verbatim

e0
“fertilizer reduction did not decrease vegetable yield when soil nitrate, Olsen–phosphorus, and exchangeable potassium were ≥173.3, 45.8, and 93.1 mg kg−1, respectively”
✓ located verbatim in the source · abstract, characters 601–768

Title

Reducing Chemical Fertilizer Application in Greenhouse Vegetable Cultivation under Different Residual Levels of Nutrient

Nannan Zhou; Yujiao Chen; Jiajia Wang; et al. Agriculture 2023. doi:10.3390/agriculture13061174

Other claims from this paper (6)

Intervention effect No nitrogen fertilizer reduced vegetable yield in fields 1–3.
Mechanism Low residual nitrate led to low nitrate absorption from nonfertilizer sources.
Observation Nitrogen recovery efficiency was high in low nitrate fields.
Observation Productivity of fertilizer nitrogen absorption was high in low nitrate fields.
Association Residual nitrate reflected by soil EC limited yield under fertilizer reduction.
Recommendation The authors recommend basing greenhouse fertilizer reductions on residual soil nutrients.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Tebeca soil conditioning increased vegetable yield by 9.2%∼43.8% versus no soil conditioner.

Taxon: vegetablee0
Treatment: application of different dosage of Tebeca soil conditioninge0
Outcome: vegetable yielde0
Direction: increasee0
Value: 9.2%∼43.8%e0
Comparator: treatment without using soil conditionere0

Verbatim

e0
“Compared with the treatment without using soil conditioner, the application of different dosage of Tebeca soil conditioning could increase vegetable yield by 9.2%∼43.8%, decrease Cd content by 13.3%∼68.0%, Pb content by 12.4%∼71.1%, increase soil pH by 2.7%∼17.6%, decrease exchangeable hydrogen by 7.4%∼42.2%, exchangeable aluminium by 20.5%∼55.4%, respectively.”
✓ located verbatim in the source · abstract, characters 324–687

Title

Application of Tebeca soil conditioner can increase vegetable yield and reduce heavy metal accumulation in red soil region

Dongfeng Huang; Zhucai Pan; Xiaoxuan Qiu IOP Conference Series Earth and Environmental Science 2019. doi:10.1088/1755-1315/349/1/012016

Other claims from this paper (8)

Intervention effect Tebeca soil conditioning decreased Cd content by 13.3%∼68.0% versus no soil conditioner.
Intervention effect Tebeca soil conditioning decreased Pb content by 12.4%∼71.1% versus no soil conditioner.
Intervention effect Tebeca soil conditioning increased soil pH by 2.7%∼17.6% versus no soil conditioner.
Intervention effect Tebeca soil conditioning decreased exchangeable hydrogen by 7.4%∼42.2% versus no soil conditioner.
Intervention effect Tebeca soil conditioning decreased exchangeable aluminium by 20.5%∼55.4% versus no soil conditioner.
Intervention effect Tebeca treatment reduced available Cd in soil by 15.6%∼66.1%.
Intervention effect Tebeca treatment reduced available Pb in soil by 3.6%∼34.7%.
Observation Tebeca application at 2250 to 3000 kg/hm 2 performed better for vegetable production.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Tebeca soil conditioning decreased Cd content by 13.3%∼68.0% versus no soil conditioner.

Taxon: vegetablee0
Treatment: application of different dosage of Tebeca soil conditioninge0
Outcome: Cd contente0
Direction: decreasee0
Value: 13.3%∼68.0%e0
Comparator: treatment without using soil conditionere0

Verbatim

e0
“Compared with the treatment without using soil conditioner, the application of different dosage of Tebeca soil conditioning could increase vegetable yield by 9.2%∼43.8%, decrease Cd content by 13.3%∼68.0%, Pb content by 12.4%∼71.1%, increase soil pH by 2.7%∼17.6%, decrease exchangeable hydrogen by 7.4%∼42.2%, exchangeable aluminium by 20.5%∼55.4%, respectively.”
✓ located verbatim in the source · abstract, characters 324–687

Title

Application of Tebeca soil conditioner can increase vegetable yield and reduce heavy metal accumulation in red soil region

Dongfeng Huang; Zhucai Pan; Xiaoxuan Qiu IOP Conference Series Earth and Environmental Science 2019. doi:10.1088/1755-1315/349/1/012016

Other claims from this paper (8)

Intervention effect Tebeca soil conditioning increased vegetable yield by 9.2%∼43.8% versus no soil conditioner.
Intervention effect Tebeca soil conditioning decreased Pb content by 12.4%∼71.1% versus no soil conditioner.
Intervention effect Tebeca soil conditioning increased soil pH by 2.7%∼17.6% versus no soil conditioner.
Intervention effect Tebeca soil conditioning decreased exchangeable hydrogen by 7.4%∼42.2% versus no soil conditioner.
Intervention effect Tebeca soil conditioning decreased exchangeable aluminium by 20.5%∼55.4% versus no soil conditioner.
Intervention effect Tebeca treatment reduced available Cd in soil by 15.6%∼66.1%.
Intervention effect Tebeca treatment reduced available Pb in soil by 3.6%∼34.7%.
Observation Tebeca application at 2250 to 3000 kg/hm 2 performed better for vegetable production.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Tebeca soil conditioning decreased Pb content by 12.4%∼71.1% versus no soil conditioner.

Taxon: vegetablee0
Treatment: application of different dosage of Tebeca soil conditioninge0
Outcome: Pb contente0
Direction: decreaseinferrede0
Value: 12.4%∼71.1%e0
Comparator: treatment without using soil conditionere0

Verbatim

e0
“Compared with the treatment without using soil conditioner, the application of different dosage of Tebeca soil conditioning could increase vegetable yield by 9.2%∼43.8%, decrease Cd content by 13.3%∼68.0%, Pb content by 12.4%∼71.1%, increase soil pH by 2.7%∼17.6%, decrease exchangeable hydrogen by 7.4%∼42.2%, exchangeable aluminium by 20.5%∼55.4%, respectively.”
✓ located verbatim in the source · abstract, characters 324–687

Title

Application of Tebeca soil conditioner can increase vegetable yield and reduce heavy metal accumulation in red soil region

Dongfeng Huang; Zhucai Pan; Xiaoxuan Qiu IOP Conference Series Earth and Environmental Science 2019. doi:10.1088/1755-1315/349/1/012016

Other claims from this paper (8)

Intervention effect Tebeca soil conditioning increased vegetable yield by 9.2%∼43.8% versus no soil conditioner.
Intervention effect Tebeca soil conditioning decreased Cd content by 13.3%∼68.0% versus no soil conditioner.
Intervention effect Tebeca soil conditioning increased soil pH by 2.7%∼17.6% versus no soil conditioner.
Intervention effect Tebeca soil conditioning decreased exchangeable hydrogen by 7.4%∼42.2% versus no soil conditioner.
Intervention effect Tebeca soil conditioning decreased exchangeable aluminium by 20.5%∼55.4% versus no soil conditioner.
Intervention effect Tebeca treatment reduced available Cd in soil by 15.6%∼66.1%.
Intervention effect Tebeca treatment reduced available Pb in soil by 3.6%∼34.7%.
Observation Tebeca application at 2250 to 3000 kg/hm 2 performed better for vegetable production.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Tebeca soil conditioning decreased exchangeable hydrogen by 7.4%∼42.2% versus no soil conditioner.

Taxon: vegetablee0
Treatment: application of different dosage of Tebeca soil conditioninge0
Outcome: exchangeable hydrogene0
Direction: decreasee0
Value: 7.4%∼42.2%e0
Comparator: treatment without using soil conditionere0

Verbatim

e0
“Compared with the treatment without using soil conditioner, the application of different dosage of Tebeca soil conditioning could increase vegetable yield by 9.2%∼43.8%, decrease Cd content by 13.3%∼68.0%, Pb content by 12.4%∼71.1%, increase soil pH by 2.7%∼17.6%, decrease exchangeable hydrogen by 7.4%∼42.2%, exchangeable aluminium by 20.5%∼55.4%, respectively.”
✓ located verbatim in the source · abstract, characters 324–687

Title

Application of Tebeca soil conditioner can increase vegetable yield and reduce heavy metal accumulation in red soil region

Dongfeng Huang; Zhucai Pan; Xiaoxuan Qiu IOP Conference Series Earth and Environmental Science 2019. doi:10.1088/1755-1315/349/1/012016

Other claims from this paper (8)

Intervention effect Tebeca soil conditioning increased vegetable yield by 9.2%∼43.8% versus no soil conditioner.
Intervention effect Tebeca soil conditioning decreased Cd content by 13.3%∼68.0% versus no soil conditioner.
Intervention effect Tebeca soil conditioning decreased Pb content by 12.4%∼71.1% versus no soil conditioner.
Intervention effect Tebeca soil conditioning increased soil pH by 2.7%∼17.6% versus no soil conditioner.
Intervention effect Tebeca soil conditioning decreased exchangeable aluminium by 20.5%∼55.4% versus no soil conditioner.
Intervention effect Tebeca treatment reduced available Cd in soil by 15.6%∼66.1%.
Intervention effect Tebeca treatment reduced available Pb in soil by 3.6%∼34.7%.
Observation Tebeca application at 2250 to 3000 kg/hm 2 performed better for vegetable production.

“yield decrease”

Claim types

Direction of the findings

Over time

Claim type

Research area

Polarity

Statistics