Search claims · PlantClaims

Intervention effectobservedreview summarynegativebasis n/a

Claim · model-written summary

Under low plant density the overall soybean yield may slightly decrease.

Taxon: SoybeanGlycine maxt0
Treatment: Low plant densitye3
Outcome: overall yielde3
Direction: decreasee3
Qualifier: may slightly decreasee3

Not reportedComparator

Verbatim

t0
“Soybean”
✓ located verbatim in the source · title, characters 53–60

e3
“Low plant density helps improve individual plant growth and nutrient use efficiency, although the overall yield may slightly decrease”
✓ located verbatim in the source · abstract, characters 288–421

Title

The Role of Plant Density and Nutrient Management in Soybean Yield Optimization

Jianhua Wang; Xin Lin; Xiaoying Li Legume Genomics and Genetics 2024. doi:10.5376/lgg.2024.15.0027

Other claims from this paper (6)

Intervention effect High plant density significantly increases soybean productivity by enhancing canopy light interception and dry matter accumulation.
Intervention effect High plant density may also lead to increased competition for resources in soybean.
Intervention effect Low plant density helps improve individual plant growth and nutrient use efficiency in soybean.
Intervention effect Proper nutrient supply and management strategies can enhance soybean adaptability to environmental stresses.
Intervention effect Proper nutrient supply and management strategies can increase soybean yield.
Intervention effect Proper nutrient supply and management strategies can reduce soybean input costs.

Intervention effectobservedoriginal resultnegativeprojected

Claim · model-written summary

In the far future all regional climate models predicted a decrease of peanut yield.

Taxon: peanutArachis hypogaeat0
Outcome: peanut yielde0
Direction: decreasee0

Not reportedTreatmentComparator

Verbatim

t0
“peanut”
✓ located verbatim in the source · title, characters 46–52

e0
“During the far future, all RCMs predict a decrease of the peanut yield”
✓ located verbatim in the source · abstract, characters 1307–1377

Title

Simulation of the impact of climate change on peanut yield in Senegal

Badara Sarr Alioune; Camara Moctar International Journal of the Physical Sciences 2018. doi:10.5897/ijps2017.4710

Other claims from this paper (7)

Intervention effect In the near future (2021-2050) peanut yield decreased for all regional climate models except RACMO22T under both scenarios, relative to the reference period.
Intervention effect The decrease in peanut yield was stronger under the RCP8.5 scenario.
Observation The ensemble mean predicted a strong decrease of rainfall under RCP4.5.
Observation The ensemble mean predicted a slight decrease of rainfall under RCP8.5.
Observation All models predicted a gradual increase in mean temperature.
Observation The temperature increase was stronger under the RCP8.5 scenario.
Recommendation The authors state that adaptation strategies are needed to protect the peanut sector.

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.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Soybean yield tended to decrease with wider rows and narrower spacing within rows.

Taxon: soybeanGlycine maxe1
Outcome: yielde0
Direction: decreasee0
Qualifier: tendede0
Setting: row widthse0

Verbatim

e0
“yield tended to decrease with wider row widths and narrower within row spacings”
✓ located verbatim in the source · abstract, characters 890–969

e1
“soybean [ Glycine max (L.) Merr.]”
✓ located verbatim in the source · abstract, characters 35–68

Title

Soybean Planting Patterns in Relation to Yield and Yield Components

T. Ikeda Agronomy Journal 1992. doi:10.2134/agronj1992.00021962008400060002x

Other claims from this paper (4)

Intervention effect Twin-zigzag soybean patterns yielded more than twin-rectangular patterns at 70-cm width.
Association The higher yields came from more seeds per plant.
Intervention effect Weight per seed was unaffected by planting pattern.
Recommendation The authors proposed that square planting patterns could increase yield.

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Yield did not significantly decrease through the eight-day irrigation interval.

Taxon: RICEOryza sativat0
Treatment: 8We0
Outcome: yielde0
Direction: decreasee0
Comparator: continuous flooding (W)e1

Verbatim

e0
“without any significant decrease in yield up to 8W”
✓ located verbatim in the source · abstract, characters 905–955

t0
“RICE”
✓ located verbatim in the source · title, characters 64–68

e1
“continuous flooding (W) without any significant decrease”
✓ located verbatim in the source · abstract, characters 881–937

Title

IRRIGATION REGIME AND POTASSIUM LEVELS EFFECTS ON YIELD OF SOME RICE GENOTYPES, WATER USE EFFICIENCY (WUE) AND ECONOMIC RETURNS

Howida El-Habet Journal of Plant Production 2014. doi:10.21608/jpp.2014.53654

Other claims from this paper (17)

Observation Giza179 had higher grain yield and yield attributes than GZ7112 under continuous flooding.
Intervention effect Twelve-day irrigation significantly reduced rice yield.
Intervention effect At 4W, Giza179 saved 10.36% and 8.37% irrigation water in 2012 and 2013.
Intervention effect At 4W, GZ7112 saved 10.50% and 10.36% irrigation water.
Intervention effect At 8W, Giza179 saved 17.81% and 23.66% water.
Intervention effect At 8W, GZ7112 saved 13.33% and 18.44% water.
Intervention effect At 12W, irrigation water savings were 23.91% and 27.90% across the two seasons.
Intervention effect At 12W, grain yield was reduced about 22.42% and 24.71% in 2012 and 2013.
Observation Giza179 yielded 9.70 t/ha across both seasons.
Observation GZ7112 yielded 9.33 t/ha across both seasons.
Observation Giza179 saved 20.73% water across both seasons.
Observation GZ7112 saved 15.88% water across both seasons.
Observation Giza179 water use efficiency was 0.90 kg/m3.
Observation GZ7112 water use efficiency was 0.81 kg/m3.
Observation With Giza179 at 8W, total water input was reported as 11260.88 and 10006.80 m3/ha.
Intervention effect Potassium application up to 108 K2O/ha significantly increased rice yield.
Intervention effect Potassium application up to 108 K2O/ha mitigated water stress and increased WUE and water savings.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

The decrease in annual growth rate of rice area and yield resulted in a decrease in the annual growth rate of rice production.

Taxon: riceOryza sativae0
Outcome: annual growth rate of rice productione7
Direction: decreasee7
Qualifier: The decrease of annual growth rate of rice area and yielde7

Verbatim

e0
“An approach to increase rice yield and production was discussed”
✓ located verbatim in the source · abstract, characters 10–73

e7
“The decrease of annual growth rate of rice area and yield resulted in the decrease of annual growth rate of rice production”
✓ located verbatim in the source · abstract, characters 1070–1193

Title

Analysis of status and constraints of rice production in the world.

Defeng Zhu; Cheng ShiHua; Zhang Yu-ping; et al. Zhongguo nongye Kexue 2010

Other claims from this paper (19)

Observation Rice planting area increased by 32% from 1961 to 2006.
Observation Rice yield increased 1.21 times, mainly due to semi-dwarf varieties and hybrids.
Observation Rice production increased 1.92 times.
Observation Planting area increase contributed 27% of the increase of rice production.
Observation Yield increase contributed 73% of the increase of rice production.
Observation The annual growth rate of rice planting area decreased significantly since the 1960s.
Observation The annual growth rate of rice yield was 2.58% in the 1980s.
Observation The annual growth rate of rice yield was 0.98% in the 1990s.
Observation The annual growth rate of rice yield was 1.16% after 2000.
Observation The annual growth rate of rice production was 2.73% in the 1980s.
Observation The annual growth rate of rice production was 1.48% in the 1990s.
Observation The annual growth rate of rice production was 0.88% after 2000.
Observation More frequent pest damage and natural disasters limit rice production.
Observation Low contribution of rice production technology to yield increase limits rice production.
Observation Yield is declining in the multiple-cropping system, limiting rice production.
Observation Low production profit limits rice production.
Recommendation The authors recommend breeding of high-yielding varieties and hybrids and practice of new Africa rice varieties in Africa to increase global rice yield.
Recommendation The authors recommend integrated rice management technology to reduce the yield gap.
Recommendation The authors recommend mechanized rice production technology and enhanced policy support for rice production.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Each low-temperature day was associated with a 1% yield decrease.

Taxon: chickpeaCicer arietinumt0
Treatment: low-temperature daye0
Outcome: yielde0
Direction: decreasee0
Value: 1%e0

Verbatim

e0
“a low-temperature day with a 1% decrease in yield”
✓ located verbatim in the source · abstract, characters 1007–1056

t0
“chickpea”
✓ located verbatim in the source · title, characters 104–112

Title

Relationships of frequencies of extreme low temperatures with grain yield of some Australian commercial chickpea cultivars

Yashvir S. Chauhan; Sam Allard; Steve Krosch; et al. International Journal of Biometeorology 2022. doi:10.1007/s00484-022-02344-9

Other claims from this paper (7)

Observation Mean chickpea yield varied from 1 to 3 t/ha.
Association Yield was negatively associated with post-flowering frosts.
Association Yield was negatively associated with low-temperature days.
Association Yield was positively associated with pre-flowering frosts.
Association Each post-flowering frost was associated with a 5% yield decrease.
Association Cultivar by site interaction was significant only in experiments with six cultivars.
Recommendation Management and breeding to overcome post-flowering cold are expected to increase and stabilize yield.

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Nei2you 6 yield did not decrease significantly under light water stress.

Material: Nei2you 6e0
Treatment: light water stresse0
Outcome: yielde0
Direction: did not decreasee0

Not reportedTaxonComparator

Verbatim

e0
“yield of Nei2you 6 did not decrease significantly under light water stress”
✓ located verbatim in the source · abstract, characters 170–244

Title

Effects of soil moisture on the accumulation of rice dry matter and yield

Li Hua; Wang DongYin; Defeng Zhu Xi'nan nongye xuebao 2008

Other claims from this paper (8)

Intervention effect Severe water stress reduced Nei2you 6 yield by 15.2%.
Intervention effect Yield of Ⅱyou 7954 increased under soil water stress.
Observation Nei2you 6 was more sensitive to soil water stress than Ⅱyou 7954.
Intervention effect Moderate water stress decreased Nei2you 6 dry matter accumulation by 22.0%.
Intervention effect Light water stress increased Ⅱyou 7954 dry matter accumulation by 8.4%.
Intervention effect Moderate water stress increased Ⅱyou 7954 dry matter accumulation by 4.7%.
Intervention effect Soil water stress lowered dry matter transmission to the panicle in Nei2you 6 relative to the check.
Intervention effect Soil water stress raised dry matter transmission to the panicle in Ⅱyou 7954 relative to the check.

Associationobservedoriginal resultnegativemeasured

Claim · model-written summary

Beyond the protein-yield threshold, a further increase in rice protein content results in a decrease in grain yield.

Taxon: RiceOryza sativat0
Compound: protein contente0
Outcome: grain yielde0
Direction: decreasee0

Verbatim

e0
“further increase in the protein content results in a decrease in grain yield”
✓ located verbatim in the source · abstract, characters 1205–1281

t0
“Rice”
✓ located verbatim in the source · title, characters 47–51

Title

Influence of Environment on Protein Content of Rice¹

K. A. Gomez; S. K. De Datta Agronomy Journal 1975. doi:10.2134/agronj1975.00021962006700040029x

Other claims from this paper (6)

Recommendationhypothesisoriginal resultpositivebasis n/a

Claim · model-written summary

For high-yield producers, moderate stover harvest may decrease fuel use.

Taxon: CornZea mays subsp. mayst0
Treatment: moderate stover harveste6
Outcome: fuel usee6
Direction: decreasee6

Verbatim

e6
“moderate stover harvest may actually decrease fuel use”
✓ located verbatim in the source · abstract, characters 1422–1476

t0
“Corn Grain, Stover Yield”
✓ located verbatim in the source · title, characters 0–24

Title

Corn Grain, Stover Yield and Nutrient Removal Validations at Regional Partnership Sites

Douglas L. Karlen; Stuart J. Birrell; Jane M. F. Johnson; et al. Iowa State University Digital Repository (Iowa State University) 2012

Other claims from this paper (6)

“yield decrease”

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