Search claims · PlantClaims

Observationobservedoriginal resultmeasured

Claim · model-written summary

The relation between early weed mass and yield could not be resolved.

Taxon: RiceOryza sativat0
Outcome: 雑草量と収量との関係e0

Verbatim

t0
“Rice”
✓ located verbatim in the source · title, characters 32–36

e0
“生育初期における雑草量と収量との関係は明らかにし得なかつた”
✓ located verbatim in the source · abstract, characters 526–555

Title

Estimation of Yield Decrease of Rice due to Weeds in Dry Sowing Culture

Takashi OTA; Shozaburo SAIGO; Yutaka HIRANO Journal of Weed Science and Technology 1963. doi:10.3719/weed.1963.86

Other claims from this paper (8)

Association Mature weed mass and brown-rice yield were strongly negatively correlated, with r = −0.95.
Observation The mature weed mass–yield relation was y = −0.008x + 48.74.
Association Weed mass about 20 days after flooding also related to yield, modeled as y = 43.8×10−0.00046x.
Observation Early weed suppression before flooding was effective in the dry-sown rice system.
Observation Weeds reduced rice panicle number most strongly.
Observation Weeds also shortened rice panicles.
Observation Very high weed mass increased lodging.
Observation Very high weed mass worsened grain filling.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

A cover crop reduced tall fescue yield in the following year.

Taxon: tall fescueLolium arundinaceume0
Treatment: use of a cover crope0
Outcome: yield of tall fescuee0
Direction: decreasee0
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 increased red clover growth 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

Alternate drying and submergence decreased rice yield on nitrogen-deficient soils.

Taxon: RiceOryza sativat0
Treatment: alternately dry and submerged conditionse0
Outcome: yielde0
Direction: decreasee0
Comparator: Continuous Submergencet0
Setting: nitrogen‐deficient soilse0

Verbatim

e0
“With nitrogen‐deficient soils, alternately dry and submerged conditions caused an appreciable decrease in growth, yield, and nitrogen uptake.”
✓ located verbatim in the source · abstract, characters 196–337

t0
“Continuous Submergence Versus Alternate Flooding and Drying on Growth, Yield, and Nitrogen uptake of Rice”
✓ located verbatim in the source · title, characters 10–115

Title

Effect of Continuous Submergence Versus Alternate Flooding and Drying on Growth, Yield, and Nitrogen uptake of Rice¹

W. H. Patrick; W. A. Quirk; F. J. Peterson; et al. Agronomy Journal 1967. doi:10.2134/agronj1967.00021962005900050011x

Other claims from this paper (4)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Reduced nitrogen supply decreased spikelet number.

Taxon: RiceOryza sativat0
Treatment: Decreasing the nitrogen supply in the critical periode0
Outcome: number of spikeletse0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“Decreasing the nitrogen supply in the critical period, in which the plant form after heading is predetermined, made the plant proportionally decrease the amount of phosphate, potassium and silica absorbed, resulting in a decrease in the number of spikelets”
✓ located verbatim in the source · abstract, characters 1254–1510

t0
“Lowland Rice”
✓ located verbatim in the source · title, characters 105–117

Title

Analysis of Yield-Determining Process and Its Application to Yield-Prediction and Culture Improvement of Lowland Rice : LXXIV. Studies on the principles for maximizing yield and their demonstration (3).

Seizo MATSUSHIIMA; Genshichi WADA; Akio MATSUZAKI Japanese Journal of Crop Science 1966. doi:10.1626/jcs.34.321

Other claims from this paper (15)

Intervention effect Increasing early tiller production increased panicle numbers and enabled target spikelet density.
Intervention effect Reducing spikelets per panicle and excessive growth improved ripening percentage.
Observation The maximum brown rice yield was 91.9kg per are.
Observation Eight treatments yielded more than 75kg per are.
Association Spikelet density was strongly positively correlated with nitrogen absorbed by spikelet differentiation or heading.
Method / resource The spikelet–nitrogen correlation can estimate nitrogen supply needed for target spikelet numbers.
Intervention effect Reduced nitrogen supply in the critical period proportionally reduced phosphate, potassium and silica absorption.
Intervention effect Reduced nitrogen supply increased carbohydrate amount.
Mechanism Increased carbohydrate favored ripening and prevented lodging.
Recommendation Nitrogen reduction should account for spikelet number, ripening percentage and lodging resistance.
Observation The apparent optimum leaf-area index at heading for maximum postheading dry matter was about 7 to 8.
Association The optimum leaf-area index may vary with plant form and health even under given light intensity.
Observation Preheading straw carbohydrate accumulation contributed less than 20% of final grain yield.
Recommendation The authors recommend sufficient solar radiation for 25 days after heading to increase carbohydrate assimilation.
Recommendation The authors recommend selecting variety and planting date to use the sunniest ripening period.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher nitrogen dosages at the first two top dressings reduced grain yield.

Taxon: riceOryza sativat0
Treatment: Higher dosages of nitrogen applied at the first top-and second top-dressingse0
Outcome: grain yielde0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“Higher dosages of nitrogen applied at the first top-and second top-dressings resulted in the decrease of grain yield, severe occurrence of neck blast disease and lodging”
✓ located verbatim in the source · abstract, characters 1025–1194

t0
“Rice”
✓ located verbatim in the source · title, characters 130–134

Title

Effects of Split Application of Fertilizaer and Planting Density on Yield, Components of Yield, and Other Agronomic Characters of Rice (III)

W. L. Chang; S. C. Yang 中華農業研究 1964. doi:10.29951/jarc.196412.0001

Other claims from this paper (19)

Intervention effect Split fertilization raised grain yield relative to conventional application.
Intervention effect Split fertilization increased panicle number.
Intervention effect Split fertilization increased grain number.
Intervention effect Split phosphoric fertilizer had no evident response in grain yield or other measured traits.
Intervention effect Four nitrogen splits at 3: 3: 3: 1 gave the highest grain yield.
Intervention effect Higher nitrogen dosages at the first two top dressings increased neck blast disease.
Intervention effect Higher nitrogen dosages at the first two top dressings increased lodging.
Intervention effect The potassium split ratio 6:4 gave better grain yield than 6.7: 3.3.
Intervention effect Higher planting density raised yield relative to lower density.
Intervention effect Higher planting density increased panicles per unit area.
Intervention effect Split fertilization reduced tillering and culm length early in growth.
Intervention effect Split fertilization gave greater tillering and culm length at maturity.
Intervention effect Split fertilization produced heavier and longer panicles.
Intervention effect High planting density reduced tillers, plant height, panicle weight and panicle length.
Intervention effect Split fertilization increased neck blast disease occurrence.
Intervention effect Neck blast disease reduced grain weight.
Intervention effect Split fertilization increased internode length, particularly the third and fifth internodes.
Intervention effect Planting density did not affect rice blast occurrence.
Intervention effect High planting density tended to increase lodging.

Observationobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Diseased lucerne has significantly decreased dry-weight yield in the second harvest year, often requiring ploughing-in before the third harvest.

Taxon: lucerneMedicago sativae0
Outcome: dry‐weight yielde0
Direction: decreasee0
Qualifier: during the second harvest yeare0

Verbatim

e0
“a significant decrease of dry‐weight yield of diseased lucerne occurs during the second harvest year: this often necessitates the ploughing‐in of badly wilted crops before they reach their third harvest.”
✓ located verbatim in the source · abstract, characters 1647–1850

Title

Wilt of lucerne caused by species of Verticillium

J. B. HEALE; IVOR ISAAC Annals of Applied Biology 1963. doi:10.1111/j.1744-7348.1963.tb03768.x

Other claims from this paper (19)

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Wind at least six days before heading reduced yield through a lower kernel number.

Taxon: rice plantOryza sativat0
Treatment: stages 6 days or more early before the headinge0
Outcome: yielde0
Direction: reducinge0
Qualifier: decrease in the kernel numberse0

Not reportedComparator

Verbatim

e0
“that at stages 6 days or more early before the heading resulted only reducing yield related to the decrease in the kernel numbers”
✓ located verbatim in the source · abstract, characters 1358–1487

t0
“Studies on Wind Damage of Rice Plant”
✓ located verbatim in the source · title, characters 0–36

e1
“reducing the number of kernels”
✓ located verbatim in the source · abstract, characters 614–644

Title

Studies on Wind Damage of Rice Plant

Y. TSUBOI; N. HITAKA Journal of Agricultural Meteorology 1962. doi:10.2480/agrmet.17.139

Other claims from this paper (4)

Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

Cincturing vines in one season only increased yield of sultana vines in that season.

Taxon: sultanae0
Treatment: vines cinctured in one season onlye3
Outcome: yielde3
Direction: increasee3
Qualifier: more than offset by a decrease in the following yeare3

Not reportedComparator

Verbatim

e0
“sultana vines in which single or double cut cincturing every year for seven years”
✓ located verbatim in the source · abstract, characters 30–111

e3
“An increase in yield on vines cinctured in one season only was more than offset by a decrease in the following year”
✓ located verbatim in the source · abstract, characters 533–648

Title

A cincturing experiment on the sultana.

AJ Antcliff Australian Journal of Experimental Agriculture and Animal Husbandry 1961. doi:10.1071/ea9610130

Other claims from this paper (5)

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Adding orchardgrass to a forage mixture caused a comparable decrease in the legume component.

Taxon: Forage mixturese0
Treatment: orchardgrass was added to a mixturee2
Outcome: the legumee2
Direction: comparable decreasee2
Setting: three locations in Illinoise0

Not reportedComparator

Verbatim

e0
“Forage mixtures consisting of one to three legumes and of one to three grasses were established in four experiments at three locations in Illinois”
✓ located verbatim in the source · abstract, characters 9–155

e2
“When orchardgrass was added to a mixture the grass component was increased but there was a comparable decrease in the legume so the total yield remained about the same”
✓ located verbatim in the source · abstract, characters 655–822

Title

One Hundred Forage Seeding Mixture¹

J. A. Jackobs Agronomy Journal 1967. doi:10.2134/agronj1967.00021962005900050016x

Other claims from this paper (5)

Intervention effect Adding alfalfa to a forage mixture increased total forage yield.
Intervention effect Adding orchardgrass to a forage mixture increased the grass component.
Intervention effect Adding orchardgrass to a forage mixture left total yield about the same.
Observation Alfalfa and orchardgrass had the greatest influence on the performance of the mixtures.
Observation The amount of alfalfa and orchardgrass seed needed to achieve most of their effects was surprisingly low.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Correlations between cocoa yields in successive periods do not decrease as trees age.

Taxon: cocoa treesTheobroma cacaoe1
Material: Amelo- nadoe1
Organ / stage: increasing age of the treese0
Outcome: correlations between yields in successive periodse0
Direction: do note0

Verbatim

e0
“with increasing age of the trees, correlations of yield with trunk girth tend to decrease, but correlations between yields in successive periods do not.”
✓ located verbatim in the source · abstract, characters 154–306

e1
“Amelo- nado cocoa trees derived from seed”
✓ located verbatim in the source · abstract, characters 65–106

Title

The Use of Trunk Girth as a Calibrating Variate for Field Experiments on Cocoa Trees

J. F. Longworth; G. H. Freeman Journal of Horticultural Science 1963. doi:10.1080/00221589.1963.11514060

Other claims from this paper (4)

“yield decrease”

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