Search claims · PlantClaims

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Reed canarygrass IVDMD decreased on average by 0.85% per day during June.

Taxon: reed canarygrasse0
Outcome: IVDMDe0
Direction: decreasee0
Value: 0.85e0
Qualifier: % per daye0

Verbatim

e0
“In vitro dry matter digestibility (IVDMD) values ranged from above 80% down to 45%, with an average rate of decrease during June of 0.74, 0.84, 0.85 and 0.45% per day in timothy, tall fescue, reed canarygrass and Kentucky bluegrass, respectively”
✓ located verbatim in the source · abstract, characters 355–600

Title

EFFECTS OF INITIAL HARVEST DATE ON DRY MATTER YIELD, IN VITRO DRY MATTER DIGESTIBILITY AND PROTEIN IN TIMOTHY, TALL FESCUE, REED CANARYGRASS AND KENTUCKY BLUEGRASS

W. MASON; L. LACHANCE Canadian Journal of Plant Science 1983. doi:10.4141/cjps83-085

Other claims from this paper (17)

Observation Timothy IVDMD decreased on average by 0.74% per day during June.
Observation Tall fescue IVDMD decreased on average by 0.84% per day during June.
Observation Kentucky bluegrass IVDMD decreased on average by 0.45% per day during June.
Observation Timothy crude protein in first-cut forage decreased by 0.47% per day.
Observation Tall fescue crude protein in first-cut forage decreased by 0.40% per day.
Observation Reed canarygrass crude protein in first-cut forage decreased by 0.39% per day.
Observation Kentucky bluegrass crude protein in first-cut forage decreased by 0.28% per day.
Observation Regrowth forage in midsummer and fall harvests averaged 63 to 59% IVDMD.
Observation Regrowth forage in midsummer and fall harvests averaged 16 to 20% CP.
Intervention effect Delaying the initial cut continued to increase total annual dry matter yield, except in reed canarygrass.
Intervention effect Delaying the initial cut significantly increased total IVDMD yield until flowering.
Intervention effect Delaying the initial cut decreased total CP yield from stem elongation onwards.
Observation Reed canarygrass reached its optimum CP yield at early heading.
Observation Reed canarygrass had significant increases in IVDMD yield until the flowering stage.
Intervention effect Harvesting all forages at the stem elongation stage substantially reduced yield of DM, IVDMD and CP.
Observation Most of the DM was obtained in the initial harvest.
Observation Almost half of the total CP was obtained in the final harvest.

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Kentucky bluegrass IVDMD decreased on average by 0.45% per day during June.

Taxon: Kentucky bluegrassPoa pratensise0
Outcome: IVDMDe0
Direction: decreasee0
Value: 0.45e0
Qualifier: % per daye0

Verbatim

e0
“In vitro dry matter digestibility (IVDMD) values ranged from above 80% down to 45%, with an average rate of decrease during June of 0.74, 0.84, 0.85 and 0.45% per day in timothy, tall fescue, reed canarygrass and Kentucky bluegrass, respectively”
✓ located verbatim in the source · abstract, characters 355–600

Title

EFFECTS OF INITIAL HARVEST DATE ON DRY MATTER YIELD, IN VITRO DRY MATTER DIGESTIBILITY AND PROTEIN IN TIMOTHY, TALL FESCUE, REED CANARYGRASS AND KENTUCKY BLUEGRASS

W. MASON; L. LACHANCE Canadian Journal of Plant Science 1983. doi:10.4141/cjps83-085

Other claims from this paper (17)

Observation Timothy IVDMD decreased on average by 0.74% per day during June.
Observation Tall fescue IVDMD decreased on average by 0.84% per day during June.
Observation Reed canarygrass IVDMD decreased on average by 0.85% per day during June.
Observation Timothy crude protein in first-cut forage decreased by 0.47% per day.
Observation Tall fescue crude protein in first-cut forage decreased by 0.40% per day.
Observation Reed canarygrass crude protein in first-cut forage decreased by 0.39% per day.
Observation Kentucky bluegrass crude protein in first-cut forage decreased by 0.28% per day.
Observation Regrowth forage in midsummer and fall harvests averaged 63 to 59% IVDMD.
Observation Regrowth forage in midsummer and fall harvests averaged 16 to 20% CP.
Intervention effect Delaying the initial cut continued to increase total annual dry matter yield, except in reed canarygrass.
Intervention effect Delaying the initial cut significantly increased total IVDMD yield until flowering.
Intervention effect Delaying the initial cut decreased total CP yield from stem elongation onwards.
Observation Reed canarygrass reached its optimum CP yield at early heading.
Observation Reed canarygrass had significant increases in IVDMD yield until the flowering stage.
Intervention effect Harvesting all forages at the stem elongation stage substantially reduced yield of DM, IVDMD and CP.
Observation Most of the DM was obtained in the initial harvest.
Observation Almost half of the total CP was obtained in the final harvest.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

When lodging was caused suddenly by a thunderstorm, only growth regulator applications improved yield.

Taxon: winter barleyHordeum vulgaree0
Treatment: growth regulator applicationse7
Outcome: yield improvementse7
Direction: resulted ine7
Qualifier: When lodging was caused suddenly by a thunderstorme7
Setting: field experimentse0

Not reportedComparator

Verbatim

e0
“The potential of selected cultivar mixtures to decrease lodging and consequently improve yields in winter barley was examined in field experiments at two locations over 2 years”
✓ located verbatim in the source · abstract, characters 8–184

e7
“When lodging was caused suddenly by a thunderstorm, only growth regulator applications resulted in yield improvements”
✓ located verbatim in the source · abstract, characters 1022–1139

Title

Effects of winter barley cultivar mixtures on lodging

H. Stützel; W. Aufhammer The Journal of Agricultural Science 1989. doi:10.1017/s0021859600084094

Other claims from this paper (8)

Intervention effect Use of cultivar mixtures tended to reduce initial lodging in winter barley.
Intervention effect With increasing lodging, desired mixture effects prevailed in mixtures of highly susceptible and highly resistant cultivars.
Intervention effect On average, the yield advantage of mixtures over pure stands was small.
Intervention effect The yield advantage of mixtures over pure stands was greater when lodging decreased the yield of a pure cultivar.
Intervention effect Reductions in lodging prevailed in two-component mixtures.
Intervention effect Adding more components to mixtures was of no advantage over two-component mixtures.
Intervention effect When lodging developed steadily, effects of mixtures on grain yield were comparable to those of growth regulators.
Intervention effect Growth regulators gave yield advantages in two of the four trials only.

Intervention effectobservedoriginal resultpositivesimulated

Claim · model-written summary

Maintaining dry weight conservation following a 10 degree night cooling could increase maize yield by 200 kg per hectare.

Taxon: MaizeZea mayst0
Treatment: 10 $^\circ$Ce1
Outcome: yielde0
Direction: increasese0
Value: 200e0
Qualifier: if maintained through the remaining period of crop growthe0

Not reportedComparator

Verbatim

e0
“Such dry weight conservation, if maintained through the remaining period of crop growth could give yield increases of 200 and 300 kg ha$^{-1}$ respectively”
✓ located verbatim in the source · abstract, characters 1050–1205

e1
“10 $^\circ$C and 20 $^\circ$C decrease in night minimum temperature”
✓ located verbatim in the source · abstract, characters 981–1048

t0
“Maize”
✓ located verbatim in the source · title, characters 23–28

Title

Night Respiration of a Maize Crop in the Lowland Humid Tropics

F. M. Quin Journal of Applied Ecology 1981. doi:10.2307/2402411

Other claims from this paper (9)

Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

In 1978, unfertilized plants were severely stunted.

Taxon: soybeansGlycine maxe0
Treatment: no fertilizer addede1
Outcome: severely stuntede1
Qualifier: In 1978e1

Not reportedDirection

Verbatim

e0
“soybeans, Glycine max 'Davis'”
✓ located verbatim in the source · abstract, characters 130–159

e1
“In 1978, plants with no fertilizer added were severely stunted and even relatively high doses of O/sub 3/ did not further decrease yield.”
✓ located verbatim in the source · abstract, characters 895–1032

Title

Effects of Growth Medium and Fertilizer Rate on the Yield Response of Soybeans Exposed to Chronic Doses of Ozone

A. S. Heagle Phytopathology 1983. doi:10.1094/phyto-73-134

Other claims from this paper (6)

Intervention effect In 1977, potted plants had greater yield than ground-grown plants.
Intervention effect In 1978, ground-grown plants had greater yield than potted plants.
Association Growth medium did not alter ozone-caused percentage yield loss in either year.
Association At moderate fertilizer rates, fertilizer rate did not significantly alter ozone dose response in yield in either year.
Intervention effect In 1978, relatively high ozone doses did not further decrease yield of unfertilized plants.
Observation The authors infer that soybean ozone response is fairly uniform across substrate types and fertilizer rates when soil conditions support normal growth.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Continued fertilizer application increased soil organic carbon.

Treatment: phosphatic fertilizerse0
Outcome: organic carbon contente0
Direction: increasee0

Not reportedTaxonComparator

Verbatim

e0
“Continued application of phosphatic fertilizers caused a decrease in soil pH and increase in organic carbon content.”
✓ located verbatim in the source · abstract, characters 452–568

Title

Effect of Phosphatic Fertilizers of Varying Water Solubilities on the Crop Yield and Physicochemical Properties of Soils

R. S. Chahal; B. S. Duhan; Jai Singh Journal of the Indian Society of Soil Science 1982

Other claims from this paper (8)

Intervention effect DAP, TSP and 80% WSP nitrophosphate significantly increased bajra grain yield.
Intervention effect DAP, TSP and 80% WSP nitrophosphate significantly increased wheat grain yield.
Intervention effect 80% WSP NP gave yields statistically on par with DAP and TSP.
Intervention effect 50% and 30% WSP NP were inferior to DAP and TSP.
Intervention effect Continued fertilizer application decreased soil pH.
Observation Available soil P fell in control plots.
Intervention effect Soil available P increased from 8.0 to 26.2 kg P/ha in fertilized plots.
Association Added P fixation was related to fertilizer solubility.

Associationobservedoriginal resultsimulated

Claim · model-written summary

The model predicts increasing variability in annual corn yield with erosion under the same shallow-soil condition.

Taxon: cornZea mays subsp. mayst0
Treatment: soil erosione0
Outcome: variability in annual yieldse0
Direction: increasee0
Qualifier: depth to a root restricting horizon is <70 cme0
Setting: New York Statee0

Verbatim

e0
“For medium textured soils in New York State, the model predicts that soil erosion will decrease mean yield and increase variability in annual yields when the depth to a root restricting horizon is <70 cm.”
✓ located verbatim in the source · abstract, characters 1475–1679

t0
“Corn Grain Yield”
✓ located verbatim in the source · title, characters 9–25

Title

Modeling Corn Grain Yield in Relation to Soil Erosion Using a Water Budget Approach

D. J. Timlin; R. B. Bryant; V. A. Snyder; et al. Soil Science Society of America Journal 1986. doi:10.2136/sssaj1986.03615995005000030033x

Other claims from this paper (2)

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Irrigation increased corn grain yield by nearly 85%.

Taxon: cornZea mays subsp. mayse0
Treatment: irrigated plotse5
Outcome: Yieldse5
Direction: increasede5
Value: 85%e5

Not reportedComparator

Verbatim

e0
“Eighty percent of the 486 000 ha of corn production in Kansas is irrigated”
✓ located verbatim in the source · abstract, characters 0–74

e5
“Yields were increased nearly 85% with a concomitant decrease (59.8%) stalk rot incidence in the irrigated plots”
✓ located verbatim in the source · abstract, characters 1313–1424

Title

Effect of Seedborne Fusarium moniliforme and Irrigation Scheduling on Colonization of Root and Stalk Tissue, Stalk Rot Incidence, and Grain Yields¹

M. A. El‐Meleigi; L. E. Claflin; R. J. Raney Crop Science 1983. doi:10.2135/cropsci1983.0011183x002300060001x

Other claims from this paper (8)

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Bezostaya maintained higher kernel number than Roughrider and fell about 12% at high density.

Taxon: winter wheatTriticum aestivumt0
Material: Bezostayae0
Treatment: high plant population densitiese0
Outcome: kernel numberse0
Direction: decreasee0
Value: 12%e0
Comparator: Roughridere0

Verbatim

e0
“At high plant population densities, number of kernels/head for Roughrider was 21 and 27% less than at low plant population densities with and without N‐fertilization, respectively, whereas both Mironovskaya and Bezostaya maintained higher kernel numbers than Roughrider with only about 8 and 12% respective decrease independent of N‐fertilization”
✓ located verbatim in the source · abstract, characters 1220–1566

t0
“Winter Wheat”
✓ located verbatim in the source · title, characters 49–61

Title

Yield Component Comparisons between USA and USSR Winter Wheat Cultivars¹

A. L. Black; J. K. Aase Agronomy Journal 1982. doi:10.2134/agronj1982.00021962007400030009x

Other claims from this paper (16)

Intervention effect Under below-average rainfall, seeding rate did not appreciably affect grain yield.
Intervention effect Under below-average rainfall, nitrogen fertilization did not appreciably affect grain yield.
Intervention effect High density increased tiller and head-producing stem counts by about 20%.
Intervention effect High density reduced kernels per head by about 20%.
Intervention effect At zero fertilizer nitrogen, high seeding rate produced about 10% more heads per area.
Intervention effect At 45 kg per hectare fertilizer nitrogen, high seeding rate produced about 20% more heads per area.
Intervention effect Nitrogen fertilization increased head-producing stems about 30%.
Intervention effect At high density Roughrider had 21% fewer kernels per head with nitrogen fertilization.
Intervention effect At high density Roughrider had 27% fewer kernels per head without nitrogen fertilization.
Intervention effect Mironovskaya maintained higher kernel number than Roughrider and fell about 8% at high density.
Observation Across two years grain yields ranged from 1,820 to 4,260 kg per hectare.
Association Leaf area index at Feekes stage 10.4 predicted grain yield with r squared 0.960.
Association Total dry matter at maturity predicted grain yield with r squared 0.835.
Association Straw production predicted grain yield with r squared 0.908.
Association Tiller count did not predict grain yield.
Association Dry matter before maturity did not predict grain yield.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Applying 112 kg N ha-1 to clover-grass mixtures did not improve total yield, forage distribution or N accumulation.

Taxon: clover‐grass mixturese0
Treatment: 112 kg N ha −1e0
Outcome: total yield, forage distribution, or N accumulatione0
Direction: did not improvee0

Not reportedComparator

Verbatim

e0
“Applying 112 kg N ha −1 to clover‐grass mixtures did not improve total yield, forage distribution, or N accumulation, but did decrease percentage clover in the stand 5 to 33%”
✓ located verbatim in the source · abstract, characters 1607–1781

Title

Forage and Nitrogen Contributions of Arrowleaf and Subterranean Clovers Overseeded on Bermudagrass and Bahiagrass¹

G. W. Evers Agronomy Journal 1985. doi:10.2134/agronj1985.00021962007700060030x

Other claims from this paper (10)

“yield decrease”

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