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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

Sugar beet sucrose content did not decrease at either saflufenacil rate.

Taxon: Sugar beetBeta vulgaris subsp. vulgarise0
Treatment: saflufenacil at 100 and 200 g ha −1e0
Outcome: sucrose contente0
Direction: note0

Not reportedComparator

Verbatim

e0
“Sugar beet plant dry weight and yield, but not sucrose content, were decreased by saflufenacil at 100 and 200 g ha −1 .”
✓ located verbatim in the source · abstract, characters 802–921

Title

Saflufenacil Carryover Injury Varies among Rotational Crops

Darren E. Robinson; Kristen E. McNaughton Weed Technology 2012. doi:10.1614/wt-d-11-00080.1

Other claims from this paper (11)

Intervention effect Cucumber dry weight and yield of all grades were reduced at both saflufenacil rates.
Intervention effect Onion dry weight, bulb number and size, and yield were reduced at both saflufenacil rates.
Intervention effect Sugar beet dry weight and yield decreased at both saflufenacil rates.
Intervention effect Cabbage dry weight, head size, and yield declined only after double-rate carryover.
Intervention effect Carrot root weight and yield declined only after double-rate carryover.
Intervention effect Pepper dry weight, fruit number and size, and yield declined only after double-rate carryover.
Intervention effect Pea was not negatively impacted by prior-year saflufenacil.
Intervention effect Potato was not negatively impacted by prior-year saflufenacil.
Recommendation The authors recommend against planting six sensitive crops the year after saflufenacil up to 200 g ha −1.
Recommendation Pea can be planted safely the year after saflufenacil up to 200 g ha −1.
Recommendation Potato can be planted safely the year after saflufenacil up to 200 g ha −1.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Increasing nitrogen did not decrease antioxidant parameters in tomato fruits.

Taxon: tomatoSolanum lycopersicume0
Organ / stage: fruitse0
Treatment: N levelt0
Outcome: antioxidant parameterst0

Not reportedComparatorDirection

Verbatim

e0
“not in tomato fruits”
✓ located verbatim in the source · abstract, characters 1040–1060

t0
“The increasing N level decreased antioxidant parameters in lettuce leaves, not in tomato fruits”
✓ located verbatim in the source · abstract, characters 965–1060

Title

Effects of Plant-Derived Protein Hydrolysates on Yield, Quality, and Nitrogen Use Efficiency of Greenhouse Grown Lettuce and Tomato

Seunghyun Choi; Giuseppe Colla; Mariateresa Cardarelli; et al. Agronomy 2022. doi:10.3390/agronomy12051018

Other claims from this paper (9)

Intervention effect Root drench stimulated yield, photosynthesis and water use efficiency relative to foliar application.
Intervention effect Root drench stimulated chlorophyll content and antioxidant activity relative to foliar application.
Intervention effect Higher nitrogen increased total dry weight.
Intervention effect PH-R increased lettuce shoot dry weight by 31%.
Intervention effect PH-R increased tomato fruit dry weight by 22%.
Intervention effect PH-R increased fresh marketable lettuce yield by 21%.
Intervention effect PH-R increased fresh marketable tomato yield by 32%.
Intervention effect Increasing nitrogen reduced lettuce leaf antioxidant parameters.
Intervention effect PH-R significantly enhanced nitrogen use and uptake efficiency.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Carotenoid specific content did not decrease with each HPS flux increment.

Treatment: each incremental increase in PPF from HPS lampse0
Outcome: carotenoid specific contente0

Not reportedTaxonComparatorDirection

Verbatim

e0
“Chlorophyll, but not carotenoid specific content, decreased with each incremental increase in PPF from HPS lamps.”
✓ located verbatim in the source · abstract, characters 1109–1222

Title

Modification of Yield and Chlorophyll Content in Leaf Lettuce by HPS Radiation and Nitrogen Treatments

Cary A. Mitchell; Tina Leakakos; Tameria L. Ford HortScience 1991. doi:10.21273/hortsci.26.11.1371

Other claims from this paper (8)

Intervention effect Longer exposure to combined lamps reduced lettuce leaf dry weight.
Intervention effect Longer combined-lamp exposure progressively yellowed lettuce leaves.
Intervention effect Longer combined-lamp exposure lowered specific chlorophyll content.
Association Specific carotenoid content did not correspond to leaf yellowing under combined lamps.
Intervention effect Among HPS-only regimes, 473 micromoles m-2 s-1 gave the highest lettuce leaf dry weight.
Intervention effect Each increase in HPS photon flux decreased chlorophyll content.
Intervention effect Doubling nitrogen with ammonium and nitrate partly alleviated high-flux effects on growth.
Intervention effect Doubling nitrogen with ammonium and nitrate partly alleviated high-flux effects on pigment content.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Green manure did not decrease subsequent wheat season soil water content and storage in the first two years.

Taxon: winter wheatTriticum aestivume0
Treatment: GMe0
Outcome: soil water content and storagee0
Direction: did not decreasee0
Qualifier: 0–200 cm layere0
Comparator: BLe0

Verbatim

e0
“GM did not decrease the soil water content and storage (0–200 cm layer) during the subsequent winter wheat season, relative to BL”
✓ located verbatim in the source · abstract, characters 1147–1276

Title

Legume Green Manure Further Improves the Effects of Fertilization on the Long-Term Yield and Water and Nitrogen Utilization of Winter Wheat in Rainfed Agriculture

Xiushuang Li; Juan Chen; Jianglan Shi; et al. Plants 2025. doi:10.3390/plants14162476

Other claims from this paper (18)

Intervention effect Green manure raised winter wheat grain yield by 3.2% in year three.
Intervention effect Green manure raised winter wheat grain yield by 3.8% in year four.
Intervention effect B increased winter wheat grain yield by 14.4% in year three.
Intervention effect BS increased winter wheat grain yield by 22.2% in year three.
Intervention effect B increased winter wheat grain yield by 12.7% in year four.
Intervention effect BS increased winter wheat grain yield by 19.4% in year four.
Mechanism Yield increases arose primarily through increased wheat population density.
Mechanism Higher grain yield contributed to higher wheat water use efficiency.
Intervention effect In year three, GM increased wheat water consumption (WC) by 2.4%.
Intervention effect In year three, GM increased wheat WUE by 1.7%.
Intervention effect In year three, B increased wheat water consumption (WC) by 8.3%.
Intervention effect In year three, B increased wheat WUE by 5.6%.
Intervention effect In year three, BS increased wheat water consumption (WC) by 10.4%.
Intervention effect In year three, BS increased wheat WUE by 10.7%.
Intervention effect Basal fertilizer and basal fertilizer with straw produced higher yield and nitrogen nutrition than green manure alone.
Intervention effect Green manure with basal fertilizer and straw achieved the highest yield and nitrogen nutrition.
Intervention effect Green manure combined with fertilization decreased nitrogen uptake efficiency.
Intervention effect Green manure combined with fertilization increased nitrogen productivity.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Reduced fertilizer did not remarkably decrease free amino acids, tea polyphenols or sensory scores.

Taxon: teae0
Treatment: T1–T5e0
Outcome: free amino acids, tea polyphenols and sensory evaluation scorese0
Direction: did not remarkably decreasee0

Not reportedComparator

Verbatim

e0
“The results showed that the spring tea yield of T1–T5 increased by 4.65–28.67%, while the free amino acids, tea polyphenols and sensory evaluation scores did not remarkably decrease.”
✓ located verbatim in the source · abstract, characters 543–725

Title

Effects of Reducing Chemical Fertilisers Application on Tea Production and Soils Quality: An In Situ Field Experiment in Jiangsu, China

Zhenmin Hu; Huan Li; Lingfei Ji; et al. Agronomy 2024. doi:10.3390/agronomy14081864

Other claims from this paper (12)

Intervention effect Five reduced-fertilizer treatments increased spring tea yield by 4.65–28.67% relative to conventional fertilization.
Intervention effect Reduced fertilizer treatments except T2 slightly mitigated soil acidification.
Intervention effect Reduced fertilizer treatments maintained essential nutrients for tea production.
Intervention effect Agronomic efficiency increased by 0.01–0.08 kg kg−1.
Intervention effect Shoot nutrient use efficiency increased by 0.14–0.70%.
Intervention effect Partial factor productivity increased by 0.05–0.18 kg kg−1.
Intervention effect T1 increased net economic benefits by 135.28%.
Intervention effect T3 increased net economic benefits by 67.53%.
Intervention effect T2 increased net economic benefits by 48.65%.
Intervention effect T4 increased net economic benefits by 38.07%.
Intervention effect T5 increased net economic benefits by 33.35%.
Recommendation The authors judged T1 able to maintain yield and quality while reducing fertilizer input and maximizing economic benefit and agronomic efficiency.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

The pH and EC changes did not affect rice growth and yield.

Taxon: riceOryza sativae0
Treatment: decrease in pH and an increase in EC valuese1
Outcome: growth and yielde0
Direction: did not affecte0

Not reportedComparator

Verbatim

e0
“this phenomenon did not affect the growth and yield of rice in paddy field.”
✓ located verbatim in the source · abstract, characters 782–857

e1
“a decrease in pH and an increase in EC values were observed with CMS application”
✓ located verbatim in the source · abstract, characters 700–780

Title

Effects of CMS on Rice Growth and Chemical Properties of Paddy Soil

Gwan-Ho Kang; Ik-Won Choi; Ki-Do Park; et al. Korean Journal of Soil Science and Fertilizer 2003

Other claims from this paper (7)

Intervention effect CMS increased rice nitrogen uptake relative to control.
Intervention effect CMS increased rice leaf color index, height and tiller number.
Intervention effect Rice yield increased 21% in 0.3% CMS plots relative to untreated control.
Intervention effect CMS increased protein content of unpolished rice by 4 to 28%.
Intervention effect CMS decreased the Toyo palatability score.
Intervention effect CMS lowered pH and raised EC in paddy soil.
Intervention effect CMS raised EC values in paddy soil.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Striga infection did not decrease host water use efficiency at 67 or 79 days.

Taxon: Sorghum bicolor (L.) MoenchSorghum bicolort0
Treatment: S. hermonthica infectione0
Interactor: S. hermonthicaStriga hermonthicae0parasite
Outcome: water use efficiencye0
Direction: did not decreasee0
Qualifier: 67 or 79 DASe0

Not reportedComparator

Verbatim

e0
“S. hermonthica infection did not decrease host photo-synthesis, transpiration and water use efficiency 67 or 79 DAS.”
✓ located verbatim in the source · abstract, characters 368–484

t0
“Sorghum bicolor (L.) Moench host”
✓ located verbatim in the source · abstract, characters 117–149

Title

The effect ofStriga hermonthica(Del.) Benth. infection on gas-exchange characteristics and yield of a sorghum host, measured in the field in Mali

Lawrence J. Clark; Keith G. Shawe; Gŕrard Hoffmann; et al. Journal of Experimental Botany 1994. doi:10.1093/jxb/45.2.281

Other claims from this paper (4)

Intervention effect Striga infection significantly reduced sorghum grain yield at harvest.
Intervention effect Striga infection significantly reduced sorghum straw yield at harvest.
Intervention effect Striga infection did not decrease host photosynthesis at 67 or 79 days.
Intervention effect Striga infection did not decrease host transpiration at 67 or 79 days.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Cropping system did not decrease winter injury.

Taxon: strawberryFragaria ×ananassae0
Treatment: cropping systeme0
Outcome: percentage of strawberry plants suffering from or killed by winter damagee0

Not reportedComparatorDirection

Verbatim

e0
“The peat amendment, but not the cropping system, decreased the percentage of strawberry plants suffering from or killed by winter damage.”
✓ located verbatim in the source · abstract, characters 989–1126

Title

Effect of cropping system and peat amendment on strawberry growth and yield

M. VESTBERG; S. KUKKONEN; H. KURU Agricultural and Food Science 2008. doi:10.2137/145960608784182290

Other claims from this paper (10)

Intervention effect Organic rotation D increased shoot growth over conventional rotation A.
Intervention effect Organic rotation D had higher total and marketable fruit yields than conventional rotation A.
Intervention effect Organic rotation D had higher estimated yield components than conventional rotation A.
Intervention effect Peat amendment decreased the share of strawberry plants injured or killed by winter damage.
Intervention effect Peat amendment did not affect strawberry yield.
Intervention effect Cropping system had no impact on soil pH, calcium, magnesium or nitrate.
Intervention effect Extractable phosphorus and potassium were higher under organic than conventional cropping.
Intervention effect Soil organic carbon was slightly higher under organic than conventional cropping.
Intervention effect Peat amendment increased soil organic carbon by 2%.
Observation Extractable soil nutrients were sufficient for strawberry growth and yield in both cropping systems.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Backcrossing H16 into Chunjiang06 did not decrease grain quality.

Taxon: riceOryza sativat0
Material: Chunjiang06e6
Treatment: Backcrossing this allele into the japonica variety Chunjiang06e6
Outcome: grain qualitye6
Direction: no_changeinferrede6

Not reportedComparator

Verbatim

t0
“japonica rice varieties for cultivation in south China”
✓ located verbatim in the source · title, characters 98–152

e6
“Backcrossing this allele into the japonica variety Chunjiang06 improved yield without decreasing grain quality”
✓ located verbatim in the source · abstract, characters 1014–1124

Title

Using Heading date 1 preponderant alleles from indica cultivars to breed high‐yield, high‐quality japonica rice varieties for cultivation in south China

Yujia Leng; Yihong Gao; Long Chen; et al. Plant Biotechnology Journal 2019. doi:10.1111/pbi.13177

Other claims from this paper (8)

Observation Nineteen Hd1 haplotypes were detected among 123 major Chinese rice varieties.
Observation Two major Hd1 haplotypes (H8 and H13) occur in the japonica group.
Observation Three major Hd1 haplotypes (H14, H15 and H16) occur in the indica group.
Observation SNP 316 (C-T) is the only difference between the two major japonica haplotypes.
Observation SNP 495 (C-G) and SNP 614 (G-A) are the major SNPs in the three indica haplotypes.
Observation Allele-frequency analysis showed that secondary branch number was the main target of Chinese indica breeding.
Association H16 is the most preponderant Hd1 allele in modern cultivated Chinese indica varieties.
Intervention effect Backcrossing H16 into japonica Chunjiang06 improved yield.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Delayed spring nitrogen did not reduce the sprays needed for maximum yield.

Taxon: winter barleyHordeum vulgaret0
Treatment: Delaying nitrogen application in the springe0
Outcome: number of fungicide sprays required to achieve maximum yielde0
Direction: did not decreasee0

Not reportedComparator

Verbatim

e0
“Delaying nitrogen application in the spring did not decrease the number of fungicide sprays required to achieve maximum yield”
✓ located verbatim in the source · abstract, characters 1002–1127

t0
“winter barley”
✓ located verbatim in the source · title, characters 86–99

Title

Effects of nitrogen timing and frequency of fungicide applications on grain yields of winter barley in Ireland

M. J. Conry; B. Dunne The Journal of Agricultural Science 1993. doi:10.1017/s0021859600074219

Other claims from this paper (10)

Intervention effect Nitrogen timing had little effect on foliar disease necrosis.
Intervention effect Delaying all nitrogen until April significantly reduced yield versus split March and April dressings in two of three years.
Mechanism The yield reductions reflected small differences in 1000-grain weight.
Intervention effect Spray number significantly affected foliar necrosis.
Intervention effect Spray number significantly affected grain yield.
Intervention effect One fungicide spray increased average yield by 16%.
Intervention effect Two fungicide sprays increased average yield by 32%.
Mechanism Yield increases were attributed to more ears per area and greater grain weight.
Intervention effect Fungicides delayed the onset of brackling.
Intervention effect Fungicides significantly reduced brackling amount.

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“yield decrease”

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