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“yield decrease”

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Intervention effectauthor interpretationoriginal resultno effectbasis n/a

Claim · model-written summary

Spring fertilizer N supplementation of green manures did not decrease wheat yield (author interpretation).

Taxon: wheatTriticum aestivume7
Treatment: spring applications of fertilizer Ne7
Outcome: wheat yielde7
Direction: without decreasinge7
Comparator: green manurese7

Verbatim

e7
“Supplementing green manures with spring applications of fertilizer N could decrease the leaching loss without decreasing wheat yield”
✓ located verbatim in the source · abstract, characters 1618–1750

Title

Green manure as a nitrogen source for wheat in the southeastern United States

Julia B. Nelson; Larry D. King American Journal of Alternative Agriculture 1996. doi:10.1017/s0889189300007050

Other claims from this paper (7)

Intervention effect Wheat yield with green manure only was lower than yield with 90 kg N/ha (about 65%).
Intervention effect Wheat yield with green manure plus 45 or 90 kg N/ha did not differ from yield with 90 kg N only.
Observation Soil inorganic N to a depth of 30 cm declined from as high as 40 kg/ha in fall to less than 10 kg/ha in spring during the first year.
Intervention effect Fertilizer N gave a greater potential for N leaching than green manure.
Observation An average of 80% of white clover N was recovered as soil inorganic N in a laboratory incubation at 10 °C.
Observation Field recovery of clover N (soil inorganic N plus N in wheat biomass) was only 21%.
Intervention effect Spring fertilizer N applied to green manures could decrease N leaching loss (author interpretation).

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

At 90000 plants/hm2, cane yield did not decrease remarkably relative to 105000 plants/hm2.

Taxon: Guitang 30t0
Treatment: 90000 plants/hm2e0
Outcome: cane yielde0
Direction: no remarkablee0
Comparator: 105000 plants/hm2e0

Verbatim

e0
“Treatment with 90000 plants/hm2 showed no remarkable cane yield decrease compared with density of 105000 plants/hm2”
✓ located verbatim in the source · abstract, characters 671–786

t0
“Guitang 30”
✓ located verbatim in the source · title, characters 19–29

Title

Representations of Guitang 30 in Different Density in Baise, Guangxi

Huang Wen Sugarcane and Canesugar 2012

Other claims from this paper (10)

Observation Average new-planting cane yield across treatments was 99465 kg/hm2.
Intervention effect At 120000 plants/hm2, cane yield did not increase remarkably relative to 105000 plants/hm2.
Intervention effect At 135000 plants/hm2, cane yield did not increase remarkably relative to 105000 plants/hm2.
Intervention effect At 120000 and 135000 plants/hm2, sugar content did not increase remarkably relative to 105000 plants/hm2.
Association Cane yield rose greatly from 75000 to 90000 plants/hm2.
Association Cane yield increased only slightly from 90000 to 120000 plants/hm2.
Association Cane yield fell beyond 120000 plants/hm2.
Association Sugar content was unrelated to planting density.
Recommendation The authors identify 90000～135000 plants/hm2 as suitable planting density.
Recommendation The authors identify 120000 plants/hm2 as the most suitable planting density.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Infected tolerant sugar beet cultivars had a 54% average decrease in sugar yield.

Taxon: Sugar BeetBeta vulgaris subsp. vulgarist0
Material: tolerante0
Treatment: infected treatmentse0
Interactor: rhizomaniae1pathogen
Outcome: sugar yielde0
Direction: decreasee0
Value: 54e0

Not reportedComparator

Verbatim

e0
“The average decrease in sugar yield in infected treatments, for commercial resistant, tolerant, and susceptible cultivars was 25, 54, and 90%, respectively.”
✓ located verbatim in the source · abstract, characters 987–1143

t0
“Sugar Beet”
✓ located verbatim in the source · title, characters 64–74

e1
“Results showed that rhizomania reduced the sugar yield by imposing a negative effect on root yield and sugar content.”
✓ located verbatim in the source · abstract, characters 869–986

Title

Impact of Rhizomania Virus (Beet necrotic yellow vein virus) on Sugar Beet Yield and Qualitative Characters

Saeid Darabi; Mohsen Bazrafshan; Babak Babaei; et al. 2017

Other claims from this paper (9)

Intervention effect Rhizomania reduced sugar beet sugar yield.
Intervention effect Rhizomania reduced sugar beet root yield.
Intervention effect Rhizomania reduced sugar beet sugar content.
Intervention effect Infected commercial resistant sugar beet cultivars had a 25% average decrease in sugar yield.
Intervention effect Infected susceptible sugar beet cultivars had a 90% average decrease in sugar yield.
Intervention effect Under rhizomania infection, sodium content increased by an average of 165% in all cultivars.
Intervention effect Under rhizomania infection, amino nitrogen content decreased by an average of 43%.
Observation Resistant cultivars still showed rhizomania symptoms under infection.
Mechanism The authors conclude that Rz1 does not confer full resistance to rhizomania.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Infected susceptible sugar beet cultivars had a 90% average decrease in sugar yield.

Taxon: Sugar BeetBeta vulgaris subsp. vulgarist0
Material: susceptiblee0
Treatment: infected treatmentse0
Interactor: rhizomaniae1pathogen
Outcome: sugar yielde0
Direction: decreasee0
Value: 90%e0

Not reportedComparator

Verbatim

e0
“The average decrease in sugar yield in infected treatments, for commercial resistant, tolerant, and susceptible cultivars was 25, 54, and 90%, respectively.”
✓ located verbatim in the source · abstract, characters 987–1143

t0
“Sugar Beet”
✓ located verbatim in the source · title, characters 64–74

e1
“Results showed that rhizomania reduced the sugar yield by imposing a negative effect on root yield and sugar content.”
✓ located verbatim in the source · abstract, characters 869–986

Title

Impact of Rhizomania Virus (Beet necrotic yellow vein virus) on Sugar Beet Yield and Qualitative Characters

Saeid Darabi; Mohsen Bazrafshan; Babak Babaei; et al. 2017

Other claims from this paper (9)

Intervention effect Rhizomania reduced sugar beet sugar yield.
Intervention effect Rhizomania reduced sugar beet root yield.
Intervention effect Rhizomania reduced sugar beet sugar content.
Intervention effect Infected commercial resistant sugar beet cultivars had a 25% average decrease in sugar yield.
Intervention effect Infected tolerant sugar beet cultivars had a 54% average decrease in sugar yield.
Intervention effect Under rhizomania infection, sodium content increased by an average of 165% in all cultivars.
Intervention effect Under rhizomania infection, amino nitrogen content decreased by an average of 43%.
Observation Resistant cultivars still showed rhizomania symptoms under infection.
Mechanism The authors conclude that Rz1 does not confer full resistance to rhizomania.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

A significant yield decrease due to fertilizer with the seed was observed in two trials.

Taxon: cornZea mays subsp. mayse0
Treatment: Fertilizer was banded with the seede0
Outcome: yielde1
Direction: decreasee1
Qualifier: in two trialse1

Not reportedComparator

Verbatim

e0
“Fertilizer was banded with the seed of corn”
✓ located verbatim in the source · abstract, characters 9–52

e1
“A significant yield decrease due to fertilizer with the seed was observed in two trials”
✓ located verbatim in the source · abstract, characters 433–520

Title

Response of Corn to Small Amounts of Fertilizer Placed with the Seed: II. Summary of 22 Field Trials¹

T. E. Bates Agronomy Journal 1971. doi:10.2134/agronj1971.00021962006300030006x

Other claims from this paper (9)

Intervention effect Fertilizer banded with the seed delayed corn emergence in several trials.
Intervention effect Fertilizer banded with the seed reduced corn emergence in several trials.
Intervention effect On average, fertilizer with the seed increased the dry weight of 36-day-old plants by 36%.
Intervention effect On average, fertilizer with the seed decreased the time to silking by 1.2 days.
Intervention effect On average, fertilizer with the seed decreased ear moisture at harvest by 1.2%.
Intervention effect On average, fertilizer with the seed increased grain yield by 2.9%.
Intervention effect Fertilizer with the seed reduced ear node height.
Intervention effect Fertilizer with the seed reduced plant height in two trials.
Intervention effect The effect of fertilizer with the seed on lodging was variable.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

A decrease in applied water decreased the threshold of soil Na for seed yield reduction in rapeseed.

Taxon: rapeseedt0
Treatment: decrease in applied watere0
Outcome: threshold of Na in soil for seed yield reductione0
Direction: decreasede0

Not reportedComparator

Verbatim

t0
“rapeseed (Brassica napus L.)”
✓ located verbatim in the source · title, characters 65–93

e0
“a decrease in applied water decreased the threshold of Na in soil for seed yield reduction”
✓ located verbatim in the source · abstract, characters 599–689

Title

Effect of salinity and deficit irrigation on some ions uptake by rapeseed (Brassica napus L.) under two planting methods

Ali Shabani; Ali Reza Sepaskhah; A A Kamgar Haghighi Iran agricultural research 2016. doi:10.22099/iar.2016.3542

Other claims from this paper (6)

Intervention effect Increased water stress decreased plant uptake of potassium and calcium in rapeseed.
Intervention effect Increased water stress decreased plant uptake of sodium and chloride in rapeseed.
Intervention effect With the exception of K, the uptakes of ions by rapeseed were enhanced by an increase in salinity of water and soil.
Intervention effect Deficit irrigation had a significant effect on the slope of the fitted line between plant Cl and soil Cl.
Intervention effect Under full irrigation, the plant Cl threshold for seed yield reduction differed significantly between planting methods, with yield reduction occurring at higher plant Cl in the in-furrow method.
Intervention effect A decrease in applied water decreased the plant Cl threshold for seed yield reduction.

Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

The positive effect of a green manure crop could not substitute for the yield decrease from leaving 25% of the area out of production.

Treatment: green manure crope1
Outcome: yield decreasee1
Direction: could not substitutee1

Not reportedTaxonComparator

Verbatim

e1
“The positive effect of a green manure crop could not substitute for the yield decrease from leaving 25% of the area out of produc-tion”
✓ located verbatim in the source · abstract, characters 774–908

Title

Crop production during the first course of an organic crop rotation trial in Denmark

Jørgen E. Olesen; Margrethe Askegaard; Ilse Ankær Rasmussen Organic Eprints (International Centre for Research in Organic Food Systems, and Research Institute of Organic Agriculture) 2000

Other claims from this paper (3)

Intervention effect Manure significantly increased grain yield of the cereal crops in most cases.
Intervention effect The positive effects of catch crops were mainly observed in spring cereals.
Intervention effect The largest rotation yields were obtained in the crop rotation without a green manure crop.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The traditional method without growth stimulators led to a decrease in basil yield.

Taxon: basilOcimum basilicume0
Treatment: traditional crop protection methode0
Outcome: yielde1
Direction: decreasee1
Comparator: application of the growth stimulatorse0

Verbatim

e0
“The traditional crop protection method used in the basil crop, without the application of the growth stimulators”
✓ located verbatim in the source · abstract, characters 1421–1533

e1
“This caused higher weed infestation of the crop and a decrease in yield”
✓ located verbatim in the source · abstract, characters 1610–1681

Title

The response of sweet basil (Ocimum basilicum L.) to the application of growth stimulators and forecrops

Cezary A. Kwiatkowski; Jolanta Juszczak Acta Agrobotanica 2012. doi:10.5586/aa.2011.019

Other claims from this paper (8)

Intervention effect Growth stimulators gave the best quantitative parameters of sweet basil raw material compared with untreated plots.
Intervention effect Growth stimulators gave the highest reduction in air-dry weight of weeds in the sweet basil crop compared with untreated plots.
Intervention effect The spring barley plus white mustard cover-crop forecrop had a beneficial effect on basil yield and weed infestation compared with the cereal forecrop alone.
Intervention effect Asahi SL and Tytanit gave the best growth and productivity of basil plants.
Intervention effect Omitting growth stimulators (traditional method) gave a lower basil plant height.
Intervention effect Omitting growth stimulators (traditional method) gave a smaller number of shoots per basil plant.
Intervention effect The traditional method without growth stimulators led to higher weed infestation of the basil crop.
Intervention effect Non-application of growth stimulators gave a better chemical composition of basil raw material.

Intervention effectauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Dolomite plus rates above 2,500 kg ha-1 could decrease peanut yield.

Taxon: peanutArachis hypogaeae0
Treatment: rate of dolomite plus that was higher than 2,500 kg ha-1e5
Outcome: yielde5
Direction: decreasee5
Comparator: 2,500 kg ha-1e5

Verbatim

e0
“Most developing areal for peanut crop (Arachis hoypogeae) is upland”
✓ located verbatim in the source · abstract, characters 0–67

e5
“The rate of dolomite plus that was higher than 2,500 kg ha-1 could decrease the yield”
✓ located verbatim in the source · abstract, characters 1380–1465

Title

Response of Peanut due to Application of Dolomite Plus

Mas Teddy Sutriadi; Diah Setyorini Journal of Tropical Soils 2012. doi:10.5400/jts.2012.v17i2.143-150

Other claims from this paper (8)

Intervention effectauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Excessive nitrogen or phosphorous fertilizer would decrease yield and quality of Vicia unijuga.

Taxon: Vicia unijugaVicia unijugat0
Treatment: excessive amounts of nitrogen or phosphorous fertilizere6
Outcome: the yield and qualitye6
Direction: decreasee6

Not reportedComparator

Verbatim

t0
“Effects of different nitrogen and phosphorous fertilizer on yields and nutrients of Vicia unijuga”
✓ located verbatim in the source · title, characters 0–97

e6
“excessive amounts of nitrogen or phosphorous fertilizer would decrease the yield and quality of V.unijuga”
✓ located verbatim in the source · abstract, characters 948–1053

Title

Effects of different nitrogen and phosphorous fertilizer on yields and nutrients of Vicia unijuga

Nie Bin Caoye kexue 2012

Other claims from this paper (9)

Intervention effect 75 kg·ha-1 nitrogen fertilizer could maximize dry matter yield of Vicia unijuga, with a highest yield of 3 048.
Intervention effect 140 kg·ha-1 phosphorous fertilizer could maximize dry matter yield of Vicia unijuga, with a highest yield of 2 752.
Intervention effect Nitrogen fertilizer at 75 kg·ha-1 raised yields by 50% over no fertilizer.
Intervention effect Phosphorous fertilizer at 140 kg·ha-1 raised yields by 35% over no fertilizer.
Intervention effect Combined 75 kg·ha-1 N and 140 kg·ha-1 P fertilizer raised Cu, Mn and Zn contents above those without fertilizer.
Observation Under 50 kg·ha-1 N and 70 kg·ha-1 P, water soluble sugar and crude protein contents were the highest.
Intervention effect 50 nitrogen raised water soluble sugar content by 11.0% over no nitrogen.
Intervention effect 50 nitrogen raised crude protein content by 23.5% over no nitrogen.
Recommendation The actual fertilizer amount should be considered in practice for Vicia unijuga.

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“yield decrease”

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