Search claims · PlantClaims

Intervention effectauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Larger fertilizer applications can decrease plant yield in seasons of poor rainfall.

Taxon: cornZea mays subsp. mayse1
Treatment: larger applicationse0
Outcome: plant yielde0
Direction: decreasee0
Qualifier: seasons of poor rainfalle0

Not reportedComparator

Verbatim

e0
“larger applications can even decrease the plant yield in seasons of poor rainfall”
✓ located verbatim in the source · abstract, characters 2217–2298

e1
“corn acreage”
✓ located verbatim in the source · abstract, characters 2044–2056

Title

Food Crisis Nears Critical Stages

Barbara Tufty Science News 1966. doi:10.2307/3949861

Other claims from this paper (3)

Observation Annual corn production doubled from 26 to 52 bushels per acre since 1930.
Observation No progress in more successful new corn hybrids was reported since 1930.
Intervention effect Greater fertilizer applications gave farmers a small return.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Further decrease in plant spacing in broccoli caused an abrupt reduction in yield.

Taxon: broccoliBrassica oleracea var. italicat0
Treatment: Further decrease in the space between plantse4
Outcome: yielde4
Direction: abrupt reductione4

Not reportedComparator

Verbatim

t0
“Plant spacing in broccoli”
✓ located verbatim in the source · title, characters 0–25

e4
“Further decrease in the space between plants results in an abrupt reduction in yield”
✓ located verbatim in the source · abstract, characters 442–526

Title

Plant spacing in broccoli: —Affects yield, head size, earliness

T. S. Aldrich; M Snyder; Thomas M. Little DOAJ (DOAJ: Directory of Open Access Journals) 1961

Other claims from this paper (2)

Association Closer plant spacing in broccoli produced smaller heads.
Intervention effect Total yield of broccoli increased to a maximum when spacing was reduced to 8 or 11 inches.

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Withholding nitrogen after flowering did not decrease green soybean yield.

Taxon: green soybeane1
Treatment: withholding nitrogen after floweringe0
Outcome: yielde0
Direction: no decreasee0

Not reportedComparator

Verbatim

e0
“there was no decrease in yield in treatments withholding nitrogen after flowering”
✓ located verbatim in the source · abstract, characters 471–552

e1
“In green soybean”
✓ located verbatim in the source · abstract, characters 201–217

Title

Effects of nitrogen supplied in various growth stages on the growth and yield of several vegetable crops

M. IWATA; A. UTADA Journal of the Japanese Society for Horticultural Science 1968. doi:10.2503/jjshs.37.57

Other claims from this paper (10)

Intervention effect Withholding nitrogen in the first half delayed green soybean flowering.
Intervention effect Withholding nitrogen in the first half delayed green soybean harvest.
Intervention effect Stopping nitrogen for 2-3 weeks before flowering reduced green soybean pod yield.
Intervention effect Withholding nitrogen during rapid outer leaf growth reduced autumn cabbage head weight.
Intervention effect Withholding nitrogen after early June did not significantly change cabbage head weight versus continuous supply.
Intervention effect Withholding nitrogen in winter did not significantly change cabbage head weight versus continuous supply.
Intervention effect Stopping nitrogen at any growth stage suppressed turnip top growth.
Intervention effect Stopping nitrogen at any growth stage suppressed turnip root yield.
Intervention effect Withholding nitrogen for 2 weeks before harvest improved turnip root yield versus control.
Intervention effect Withholding nitrogen immediately before harvest suppressed cauliflower curd growth.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Heavy fertilization prevented a marked vegetable yield decrease in raw subsoil.

Taxon: vegetable cropse0
Treatment: heavily fertilizede0
Outcome: yieldse0
Direction: did not decrease remarkablye0

Not reportedComparator

Verbatim

e0
“the yields of vegetable crops did not decrease remarkably in the raw subsoil when it was heavily fertilized”
✓ located verbatim in the source · abstract, characters 1503–1610

Title

The effect of deep plowing on growth and yield of vegetable crops

H. OHTA; T. KODAMA; K. WATANABE Journal of the Japanese Society for Horticultural Science 1962. doi:10.2503/jjshs.31.315

Other claims from this paper (11)

Intervention effect Deep plowing favored growth and yield of most vegetable crops.
Intervention effect Heavy fertilizer application made deep plowing more effective.
Intervention effect Raw subsoil was unfavorable to cereal and forage crop growth and yield.
Observation Most heavily fertilized vegetable crops were relatively insensitive to subsoil inhibition.
Intervention effect Frost-exposed, heavily fertilized subsoil supported excellent vegetable growth and yield.
Intervention effect Poor subsoil inhibited growth of most vegetables in pots.
Intervention effect Fertile subsoil with heavy fertilizer supported vigorous growth of most vegetables in pots.
Intervention effect Some crops grew better in subsoil than topsoil with the same fertilizer amount.
Association High yielding crops under deep plowing were less affected by poor subsoil nutrition.
Association Sensitivity to aluminum toxicity and nutrient deficiency was suggested to relate to subsoil adaptation.
Mechanism Good soil aeration after deep plowing was linked to root development and active nutrient uptake.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Field N applications tended to decrease cotton yield.

Taxon: cottonGossypium hirsutume1
Treatment: applications of Ne0
Outcome: cotton yieldse0
Direction: decreasee0

Not reportedComparator

Verbatim

e0
“applications of N increased soil and petiole NO 3 but tended to decrease cotton yields.”
✓ located verbatim in the source · abstract, characters 346–433

e1
“cotton petioles”
✓ located verbatim in the source · abstract, characters 113–128

Title

Solution and Granular Nitrogen Fertilizers for Crop Residue Management¹

J. L. Stroehlein; L. B. Fenn; W. H. Fuller Agronomy Journal 1966. doi:10.2134/agronj1966.00021962005800030025x

Other claims from this paper (11)

Intervention effect Solution N with straw mineralized more rapidly than granular N in laboratory soils.
Intervention effect Field N applications increased soil nitrate.
Intervention effect Field N applications increased cotton petiole nitrate.
Intervention effect Granular N generally produced the highest soil nitrate compared with solution N.
Intervention effect Granular and solution N did not differ in cotton petiole nitrate.
Intervention effect Straw alone decreased cotton yield.
Intervention effect Straw alone did not affect soil nitrate.
Intervention effect Straw alone did not affect petiole nitrate.
Intervention effect Straw plus N tended to decrease soil nitrate relative to N alone.
Intervention effect Straw plus N tended to decrease petiole nitrate relative to N alone.
Intervention effect Solid N at 125 pounds per acre gave cotton yield statistically equal to the check.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

By the delaying method the tea yield tends to decrease in the second season.

Taxon: Teat0
Treatment: delaying methode2
Outcome: tendency to decreasee1
Direction: decreasee1
Qualifier: second seasone1

Not reportedComparator

Verbatim

t0
“Extension of Tea Plucking Period by the Plant Growth Regulator”
✓ located verbatim in the source · title, characters 15–77

e1
“but has a tendency to decrease in the second season”
✓ located verbatim in the source · abstract, characters 474–525

e2
“By this delaying method”
✓ located verbatim in the source · abstract, characters 390–413

Title

Studies on the Extension of Tea Plucking Period by the Plant Growth Regulator (Part 2)

Shirô SUGII; Yoshimitsu YANASE; Shizuo TANAKA; et al. Chagyo Kenkyu Hokoku (Tea Research Journal) 1969. doi:10.5979/cha.1969.1

Other claims from this paper (8)

Intervention effect Chemical spraying in the first season did not keep its effectiveness in the second season.
Intervention effect By the delaying method the tea yield may be expected to increase in the first season.
Association The later the plucking time in the third season, the less the growth in the next year.
Association The later the plucking time in the third season, the number of shoots increased somewhat.
Intervention effect The quality of tea was not remarkably affected in this test.
Recommendation It is necessary to spray chemicals again in the second season to retard shoot growth.
Recommendation It is unprofitable to delay tea growth extremely in the third season.
Recommendation It is favourable to apply the delaying method in the plucking program to regulate plucking time.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The relation of yield index to weed density was a curve in which the rate of yield decrease rose progressively with density.

Taxon: 水稲e0
Treatment: タイヌビエの発生本数e0
Interactor: タイヌビエe0weed
Outcome: 収量減少速度e1
Direction: 漸増e1

Not reportedComparator

Verbatim

t0
“Rice Plants”
✓ located verbatim in the source · title, characters 25–36

e0
“タイヌビエの発生本数による水稲収量”
✓ located verbatim in the source · abstract, characters 38–55

e1
“収量指数と発生本数との関係は, 発生本数の増加にともなつて, 収量減少速度の漸増する曲線として示される”
✓ located verbatim in the source · abstract, characters 258–309

Title

Studies on the Damage to Rice Plants Due to Weed Competition

Kenji NODA; Keio OZAWA; Kazunori IBARAKI Journal of Weed Science and Technology 1968. doi:10.3719/weed.1968.49

Other claims from this paper (15)

Intervention effect Barnyard grass density had almost no effect on rice plant height.
Intervention effect In plots with many barnyard grass plants, rice elongation tended to be promoted in the middle growth stage.
Intervention effect Barnyard grass markedly affected rice tiller number, with a conspicuous decrease from the middle growth stage.
Intervention effect The tiller reduction affected final panicle number.
Intervention effect The effect on rice yield became more marked as barnyard grass density increased.
Intervention effect The yield loss was greater under heavy than light fertilisation.
Intervention effect The yield loss was greater at sparse than medium and dense planting.
Association Rice yield and total barnyard grass weight were related by logY = a - bX, with Y yield index and X weed weight.
Observation The yield components contributing to yield loss from weed competition ranked panicle number, ripened grain weight, spikelets per panicle, ripening ratio.
Intervention effect In mixed rice and barnyard grass stands the production structure declined quantitatively.
Intervention effect In mixed stands rice LAI decreased.
Intervention effect In mixed stands the quantitative development of assimilating and non-assimilating parts declined.
Intervention effect In mixed stands the N content of the leaf blades decreased in the middle growth stage.
Observation Rice reached its maximum nitrogen uptake early whereas barnyard grass kept absorbing until later.
Observation The authors consider competition between the two plants for nitrogen uptake to be large up to the first half of growth.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The yield increase from one-season cincturing of sultana vines was more than offset by a decrease in the following year.

Taxon: sultanae0
Treatment: vines cinctured in one season onlye3
Outcome: yielde3
Direction: decreasee3
Qualifier: 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 resultpositivemeasured

Claim · model-written summary

Zinc applied to canes during the dormant season offset the superphosphate-related yield decrease.

Taxon: sultana vinese0
Treatment: application of zinc to canes during the dormant seasone5
Outcome: decreasee5
Direction: offsete5

Not reportedComparator

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 had no effect on vines not receiving superphosphate.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

A small but consistent yield decrease occurred when high levels of anhydrous NH3 were applied to air-dry rather than moist soil.

Taxon: cornZea mays subsp. mayse7
Treatment: high levels of anhydrous NH 3e2
Outcome: yielde2
Direction: decreasee2
Qualifier: small but consistente2
Comparator: moist conditione3

Verbatim

e7
“Three greenhouse pot experiments were conducted with corn grown on Mountview loam”
✓ located verbatim in the source · abstract, characters 9–90

e2
“A small but consistent decrease in yield was observed when high levels of anhydrous NH 3 were applied”
✓ located verbatim in the source · abstract, characters 1216–1317

e3
“rather than moist condition”
✓ located verbatim in the source · abstract, characters 1341–1368

Title

Greenhouse Evaluation of the Agronomic Efficiency of Anhydrous Ammonia¹

J. F. Parr; R. I. Papendick Agronomy Journal 1966. doi:10.2134/agronj1966.00021962005800020030x

Other claims from this paper (6)

“yield decrease”

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