Search claims · PlantClaims

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Lime depressed total P uptake by tomato plants.

Taxon: tomatoesSolanum lycopersicume1
Treatment: limede1
Outcome: total P uptakee1
Direction: decreaseinferrede1
Setting: greenhouse experimente1

Not reportedComparator

Verbatim

e1
“In a greenhouse experiment, tomatoes grown in muck soil limed and fertilized with phosphate in different amounts showed the depressing influence of lime on yield, P content in the plant tissue, and total P uptake by the plants”
✓ located verbatim in the source · abstract, characters 278–504

Title

Influence of Calcium on Phosphorus Availability in Muck Soil

Henryk Okruszko; G. F. Warren; G. E. Wilcox Soil Science Society of America Journal 1962. doi:10.2136/sssaj1962.03615995002600010019x

Other claims from this paper (5)

Intervention effect Addition of Ca greatly decreased the solubility of native and applied P in six muck soils.
Intervention effect Reducing the amount of Ca in the soil solution increased the solubility of P in a muck soil.
Intervention effect Lime depressed tomato yield in the greenhouse experiment.
Intervention effect Lime depressed P content in the tomato plant tissue.
Intervention effect Liming increased the Ca content in tomato plant tissue.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Allowing the foliage to survive later than the 5% haulm-destruction stage did not increase sound tuber yield, even in late, slow blight years.

Taxon: potatoSolanum tuberosume0
Treatment: Allowing the foliage to survive later than this stagee7
Outcome: yield of sound tuberse7
Direction: did not increasee7
Qualifier: even in years when blight attacks were late and slowe7

Not reportedComparator

Verbatim

e0
“The methods needed to decrease losses from potato blight in the variety Majestic are different from those required for King Edward”
✓ located verbatim in the source · abstract, characters 8–138

e7
“Allowing the foliage to survive later than this stage did not increase the yield of sound tubers even in years when blight attacks were late and slow”
✓ located verbatim in the source · abstract, characters 830–979

Title

The epidemiology of Phytophthora infestans. IV. Spraying trials, 1959 to 1963, and the infection of tubers

J. M. HIRST; O. J. STEDMAN; J. LACEY; et al. Annals of Applied Biology 1965. doi:10.1111/j.1744-7348.1965.tb07951.x

Other claims from this paper (9)

Associationobservedoriginal resultmeasured

Claim · model-written summary

Infected plants produced more tillers.

Taxon: perennial rye‐grassLolium perennet0
Outcome: tillerse0
Direction: moree0
Comparator: healthy plantse0

Verbatim

e0
“During a period of 2 years, infection did not decrease plant survival; infected plants produced more tillers and gave a higher ratio of vegetative to fertile tillers than healthy plants.”
✓ located verbatim in the source · abstract, characters 229–415

t0
“perennial rye‐grass”
✓ located verbatim in the source · title, characters 102–121

Title

Effects of barley yellow dwarf virus on the growth and yield of single plants and simulated swards of perennial rye‐grass

P. L. CATHERALL Annals of Applied Biology 1966. doi:10.1111/j.1744-7348.1966.tb06876.x

Other claims from this paper (12)

Observation Infected rye-grass had inconspicuous leaf symptoms.
Association Infected rye-grass was more stunted than healthy plants.
Association Infected rye-grass yielded less total herbage.
Association Infected rye-grass yielded more early spring herbage.
Association BYDV infection did not lower plant survival over two years.
Association Infected plants had a higher vegetative to fertile tiller ratio.
Association BYDV caused greater yield loss with two annual cuts than four.
Association Half-infected swards had intermediate yields.
Association Infected plants tended to dominate healthy plants in swards cut four times.
Observation The initial status quo was maintained in swards cut twice yearly.
Association Clover yielded more with infected rye-grass for most of the year.
Association Clover yield with infected rye-grass was lower in spring.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Lime depressed P content in the tomato plant tissue.

Taxon: tomatoesSolanum lycopersicume1
Treatment: limede1
Outcome: P content in the plant tissuee1
Direction: decreaseinferrede1
Setting: greenhouse experimente1

Not reportedComparator

Verbatim

e1
“In a greenhouse experiment, tomatoes grown in muck soil limed and fertilized with phosphate in different amounts showed the depressing influence of lime on yield, P content in the plant tissue, and total P uptake by the plants”
✓ located verbatim in the source · abstract, characters 278–504

Title

Influence of Calcium on Phosphorus Availability in Muck Soil

Henryk Okruszko; G. F. Warren; G. E. Wilcox Soil Science Society of America Journal 1962. doi:10.2136/sssaj1962.03615995002600010019x

Other claims from this paper (5)

Intervention effect Addition of Ca greatly decreased the solubility of native and applied P in six muck soils.
Intervention effect Reducing the amount of Ca in the soil solution increased the solubility of P in a muck soil.
Intervention effect Lime depressed tomato yield in the greenhouse experiment.
Intervention effect Lime depressed total P uptake by tomato plants.
Intervention effect Liming increased the Ca content in tomato plant tissue.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Zinc applied to canes during the dormant season had no effect on vines not receiving superphosphate.

Taxon: sultana vinese0
Treatment: application of zinc to canes during the dormant seasone5
Outcome: effecte5
Direction: no effecte5
Comparator: vines not receiving superphosphatee5

Verbatim

e0
“Zinc foliage sprays increased the yield of dried fruit of sultana vines on two light-textured alkaline soils in the Mildura area”
✓ located verbatim in the source · abstract, characters 0–128

e5
“The application of zinc to canes during the dormant season offset this decrease but had no effect on vines not receiving superphosphate”
✓ located verbatim in the source · abstract, characters 452–587

Title

Yield responses by sultanas to applications of zinc and superphosphate

DMcE Alexander; RC Woodham Australian Journal of Experimental Agriculture and Animal Husbandry 1964. doi:10.1071/ea9640169

Other claims from this paper (6)

Intervention effect Zinc foliage sprays increased dried fruit yield of sultana vines on two alkaline soils in the Mildura area.
Observation Neither sultana vineyard showed zinc deficiency symptoms.
Mechanism Yield increases with zinc application were mainly due to better setting.
Observation The yield increase from zinc occurred in the season of application.
Intervention effect Superphosphate depressed yields in three of seven years after 19 years of heavy annual dressings at one site.
Intervention effect Zinc applied to canes during the dormant season offset the superphosphate-related yield decrease.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Mean hay yield in bushed camps at the Buttermere site was 96 lb.

Taxon: grass speciese1
Outcome: mean hay yieldse2
Value: 96 lbe2
Qualifier: bushed campse2
Setting: Buttermere sitee2

Verbatim

e1
“A highly significant decrease in the three dominant grass species (Stipagrostis uniplumis, Schmidtia bulbosa and Eragrostis lehmanniana) was recorded in camps with a moderate stand of woody plant species at the Buttermere and Seruruble sites”
✓ located verbatim in the source · abstract, characters 306–547

e2
“The mean hay yields recorded (1965/66 season) from bushed and debushed camps at the Buttermere site were 96 lb and 998 lb respectively”
✓ located verbatim in the source · abstract, characters 853–987

Title

The immediate effects of the 1964/66 drought on the vegetation of specific study areas in the Vryburg district

C. H. Donaldson Proceedings of the Annual Congresses of the Grassland Society of Southern Africa 1967. doi:10.1080/00725560.1967.9648547

Other claims from this paper (6)

Observationobservedoriginal resultmeasured

Claim · model-written summary

Mean hay yield in debushed camps at the Buttermere site was 998 lb.

Taxon: grass speciese1
Outcome: mean hay yieldse2
Value: 998 lbe2
Qualifier: debushed campse2
Setting: Buttermere sitee2

Verbatim

e1
“A highly significant decrease in the three dominant grass species (Stipagrostis uniplumis, Schmidtia bulbosa and Eragrostis lehmanniana) was recorded in camps with a moderate stand of woody plant species at the Buttermere and Seruruble sites”
✓ located verbatim in the source · abstract, characters 306–547

e2
“The mean hay yields recorded (1965/66 season) from bushed and debushed camps at the Buttermere site were 96 lb and 998 lb respectively”
✓ located verbatim in the source · abstract, characters 853–987

Title

The immediate effects of the 1964/66 drought on the vegetation of specific study areas in the Vryburg district

C. H. Donaldson Proceedings of the Annual Congresses of the Grassland Society of Southern Africa 1967. doi:10.1080/00725560.1967.9648547

Other claims from this paper (6)

Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Recovery was associated with second tiller emergence, greater net assimilation and nitrogen uptake, and lower nitrogen stress.

Taxon: wheat cropTriticum aestivumt0
Organ / stage: second tillere0
Outcome: recoverye0

Not reportedDirection

Verbatim

e0
“The recovery was associated with the emergence of the second tiller, an increase in net assimilation rate and nitrogen uptake, and a decrease in nitrogen stress.”
✓ located verbatim in the source · abstract, characters 312–473

t0
“wheat crop”
✓ located verbatim in the source · title, characters 98–108

Title

An analysis of the effects of nitrogen deficiency on the growth and yield of a Western Australian wheat crop

NJ Halse; EAN Greenwood; P Lapins; et al. Australian Journal of Agricultural Research 1969. doi:10.1071/ar9690987

Other claims from this paper (15)

Observation Relative growth rate generally declined over time.
Intervention effect Early-season relative growth rate ranked N2 above N1 and N0.
Observation Deficient plants recovered rapidly in August.
Mechanism There was no evidence that greater soil nitrogen mineralization caused recovery.
Observation Nitrogen stress under N0 fell from 48% in July to 14% in September.
Observation Stress under N1 rose from 6 to 23% in July before falling to 5% in September.
Intervention effect N0 delayed flower initiation 14 days compared with N1.
Intervention effect N0 delayed ear emergence 8 days relative to N1.
Intervention effect N0 grain yield was 30% of N2 grain yield.
Intervention effect N1 grain yield was 60% of N2 grain yield.
Mechanism Yield decline was mainly attributable to heads per square metre.
Intervention effect Nitrogen deficiency reduced grains per head.
Intervention effect Nitrogen deficiency reduced weight per grain.
Intervention effect Nitrogen treatments did not affect duration of photosynthetic activity after anthesis.
Intervention effect Harvest index was highest under N0 and similar under N1 and N2.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A cover crop increased red clover growth in the following year.

Taxon: red cloverTrifolium pratensee0
Treatment: use of a cover crope0
Outcome: growth of red clovere0
Direction: increasee0
Qualifier: following yeare0

Not reportedComparator

Verbatim

e0
“The decrease in yield of tall fescue and the increase in growth of red clover, caused by the use of a cover crop, was still evident in the following year”
✓ located verbatim in the source · abstract, characters 97–250

Title

EFFECTS OF METHOD OF ESTABLISHMENT ON TALL FESCUE AND ITALIAN RYEGRASS MIXTURES IN THE FOLLOWING YEAR

A. H. Charles Grass and Forage Science 1967. doi:10.1111/j.1365-2494.1967.tb00534.x

Other claims from this paper (7)

Intervention effect A cover crop reduced tall fescue yield in the following year.
Observation With a cover crop, Italian ryegrass and white clover exceeded tall fescue and white clover in spring grazing and total yield.
Observation Without a cereal cover crop, tall fescue and white clover had the reverse ranking.
Intervention effect Adding red clover generally increased mixture yield.
Intervention effect Nitrogen increased total herbage yield.
Intervention effect Nitrogen reduced white clover growth.
Recommendation The authors recommend considering establishment method when assessing herbage seed mixtures.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Grain yield fell with later sowing by 0.3 to 0.45 kg per are per day.

Taxon: riceOryza sativat0
Treatment: delay in sowing timee0
Outcome: Grain yieldse0
Direction: decreasede0
Value: 0.3 to 0.45 kg. per are per daye0

Not reportedComparator

Verbatim

e0
“Grain yields decreased linearly with the delay in sowing time, showing a decrease of 0.3 to 0.45 kg. per are per day”
✓ located verbatim in the source · abstract, characters 471–587

t0
“Studies on the Short Period Cultivation of Direct Sown Rice Plant : 4. Effect of the sowing time on the plant growth and rice yields”
✓ located verbatim in the source · title, characters 0–132

Title

Studies on the Short Period Cultivation of Direct Sown Rice Plant : 4. Effect of the sowing time on the plant growth and rice yields

Noboru IKENAGA; Rinitsu MORITA; Takeo SAITO Japanese Journal of Crop Science 1966. doi:10.1626/jcs.35.216

Other claims from this paper (15)

Intervention effect Yield loss relative to late May sowing was 0.5 to 0.9 percent.
Intervention effect Delayed sowing reduced dry matter accumulation in panicles.
Intervention effect Delayed sowing impaired full ripeness.
Observation Later sowing reduced the rate of dry matter production during ripening.
Observation Net assimilation rate decreased during ripening with later sowing.
Observation Leaf dry weight decreased during ripening with later sowing.
Association Extremely early varieties had lower ripening leaf dry weight than early varieties.
Association Extremely early varieties had higher net assimilation rate than early varieties.
Observation Dry matter increase rate did not differ significantly between maturity groups.
Association Yield did not differ significantly between maturity groups across sowing dates.
Association Yukara yielded more than Sasahonami.
Association Fujiminori yielded more than Koshijiwase.
Association Sasahonami had poor ripeness.
Association Fujiminori had a high rate of dry matter increase throughout growth.
Association Yield differed little across seeding densities.

“yield decrease”

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