Search claims · PlantClaims

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen application increased water-use efficiency.

Taxon: barleyHordeum vulgaret0
Treatment: nitrogene0
Outcome: efficiency of water usee0
Direction: increasede0

Not reportedComparator

Verbatim

e0
“Application of nitrogen, straw mulch and a foliar coating of kaolin increased the efficiency of water use”
✓ located verbatim in the source · abstract, characters 610–715

t0
“barley (Hordeum vulgare L.)”
✓ located verbatim in the source · title, characters 97–124

Title

Effect of nitrogen rates, mulching and antitranspirants on water use and water use efficiency of barley (Hordeum vulgare L.) varieties grown under dryland conditions

S. K. Agarwal; Rajat De The Journal of Agricultural Science 1979. doi:10.1017/s0021859600062754

Other claims from this paper (8)

Observation Ratna and Vijaya barley had similar water-use efficiency.
Observation Total water use differed little across treatments.
Intervention effect Straw mulch reduced evapotranspiration at tillering and pre-flowering stages.
Intervention effect Kaolin reduced evapotranspiration at tillering and pre-flowering stages.
Intervention effect Straw mulch enabled more water use at grain formation.
Intervention effect Kaolin enabled more water use at grain formation.
Intervention effect Straw mulch increased water-use efficiency.
Intervention effect Foliar kaolin increased water-use efficiency.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen fertilization substantially improved water-use efficiency.

Taxon: FIELD PEASt0
Treatment: Nitrogen fertilizatione0
Outcome: water-use efficiencye0
Direction: substantially improvede0

Not reportedComparator

Verbatim

e0
“Nitrogen fertilization in the growth room experiment markedly increased plant weight, seed yield and protein content, and water-use efficiency was substantially improved.”
✓ located verbatim in the source · abstract, characters 315–485

t0
“FIELD PEAS”
✓ located verbatim in the source · title, characters 57–67

Title

EFFECTS OF NITROGEN AND MOISTURE ON YIELD AND PROTEIN IN FIELD PEAS

L. A. McLEAN; F. W. SOSULSKI; C. G. YOUNGS Canadian Journal of Plant Science 1974. doi:10.4141/cjps74-047

Other claims from this paper (9)

Observationobservedoriginal resultmeasured

Claim · model-written summary

At higher nitrogen rates nitrogen use efficiency declined to 5 to 7 kg DM/kg N.

Taxon: hill pasturese1
Treatment: higher ratese0
Outcome: efficiency of N usee0
Direction: reducede0
Value: 5 to 7 kg DM/kg Ne0

Verbatim

e0
“at higher rates the efficiency of N use was reduced to 5 to 7 kg DM/kg N”
✓ located verbatim in the source · abstract, characters 330–402

e1
“hill pastures”
✓ located verbatim in the source · abstract, characters 16–29

Title

NITROGEN FELTILIZER RESPONSES ON HILI. COUNTRY PASTURES

P.C. Luscombe Proceedings of the New Zealand Grassland Association 1979. doi:10.33584/jnzg.1979.41.1531

Other claims from this paper (5)

Associationauthor interpretationoriginal resultnegativemeasured

Claim · model-written summary

Nitrogen use efficiency appeared reduced under corn monoculture.

Taxon: CORNZea mays subsp. mayst0
Treatment: monoculture conditionse0
Outcome: efficiency of N usee0
Direction: reducede0

Verbatim

e0
“the efficiency of N use appeared to be reduced under monoculture conditions”
✓ located verbatim in the source · abstract, characters 329–404

t0
“CORN”
✓ located verbatim in the source · title, characters 90–94

Title

SOME RELATIONSHIPS BETWEEN SOIL POROSITY, LEAF NUTRIENT COMPOSITION AND YIELD FOR CERTAIN CORN ROTATIONS AT TWO FERTILITY LEVELS ON BROOKSTON CLAY

E. F. BOLTON; V. A. DIRKS; W. I. FINDLAY Canadian Journal of Soil Science 1979. doi:10.4141/cjss79-001

Other claims from this paper (5)

Association Continuous corn culture was associated with soil compaction.
Intervention effect Fertilizer did not alleviate the compaction-related detrimental effect on corn K uptake versus no fertilizer.
Intervention effect Corn rotation with oats or oats and seedling alfalfa was superior to continuous corn.
Intervention effect A four-year rotation with two years of alfalfa enabled maximum fertilizer yield response, adequate nutrition and favorable soil tilth.
Recommendation The authors recommend legume-inclusive rotations for corn production on fine-textured soils.

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors concluded that stomatal behaviour cannot explain water use efficiency differences between nitrogen levels.

Taxon: maize and sunflowerHelianthus annuus Zea mayst0
Compound: Ne0
Outcome: differences in water-use efficiencye0
Qualifier: stomatal behaviour cannot explaine0

Verbatim

e0
“stomatal behaviour cannot explain differences in water-use efficiency between plants growing at different levels of N”
✓ located verbatim in the source · abstract, characters 415–532

t0
“maize and sunflower”
✓ located verbatim in the source · title, characters 92–111

Title

The direct and indirect effects of nitrogen shortage on photosynthesis and transpiration in maize and sunflower.

J. Goudriaan; H. van Keulen Netherlands Journal of Agricultural Science 1979. doi:10.18174/njas.v27i3.17055

Other claims from this paper (2)

Mechanismauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Fumigation improved root health and nitrogen use efficiency.

Taxon: sugar beetBeta vulgaris subsp. vulgarist0
Treatment: Fumigatione0
Outcome: health of rootse0

Verbatim

e0
“Fumigation not only improved the health of roots, and so enabled them to use nitrogen more efficiently”
✓ located verbatim in the source · abstract, characters 1125–1227

t0
“sugar beet”
✓ located verbatim in the source · title, characters 73–83

Title

The effects of soil fumigation and nitrogen fertilizers on nematodes and sugar beet in sandy soils

D. A. COOKE; A. P. DRAYCOTT Annals of Applied Biology 1971. doi:10.1111/j.1744-7348.1971.tb04678.x

Other claims from this paper (16)

Intervention effect D-D fumigation raised sugar beet root yield from 25 to 36 t/ha.
Intervention effect Applying 85 kg N/ha increased yield on fumigated plots by 7 t/ha.
Intervention effect Additional nitrogen beyond 85 kg N/ha gave little yield benefit.
Intervention effect Fumigation killed 65 % of Pratylenchus in the top 5 cm.
Intervention effect Fumigation killed 80% of Trichodorus in the top 5 cm.
Intervention effect Fumigation killed 90% of Tylenchorhynchus in the top 5 cm.
Intervention effect Fumigation killed 90% of Pratylenchus at 15–20 cm depth.
Intervention effect Fumigation killed 93% of Trichodorus at 15–20 cm depth.
Intervention effect Fumigation killed 95% of Tylenchorhynchus at 15–20 cm depth.
Association Yield gains from fumigation did not correlate with initial nematode populations.
Association Yield gains from fumigation correlated poorly with May rainfall.
Association Nematode population increases from April to August correlated positively with preceding ten week rainfall.
Association Nematode population increases correlated positively with rainfall in the previous week.
Intervention effect Fumigation increased soil available nitrogen.
Intervention effect Fumigation decreased nitrogen loss by leaching.
Intervention effect Injected anhydrous ammonia did not affect nematode populations.

Observationobservedreview summarypositivebasis n/a

Claim · model-written summary

Nitrogen fertilization achieved about 20 lb dry matter/lb N applied nitrogen-use efficiency.

Treatment: 30 to 50 lb N/acre/yeare0
Outcome: N-use efficiencye0
Value: about 20 lb dry matter/lb N appliede0

Not reportedTaxonDirection

Verbatim

e0
“Applications of 30 to 50 lb N/acre/year have commonly doubled forage production with an N-use efficiency of about 20 lb dry matter/lb N applied, or in grazing situations about 1 lb beef/lb N applied.”
✓ located verbatim in the source · abstract, characters 122–321

Title

Range Fertilization in the Northern Great Plains

J. Ross Wight Journal of Range Management 1976. doi:10.2307/3897270

Other claims from this paper (6)

Intervention effect Nitrogen applications of 30 to 50 lb N/acre/year commonly doubled forage production.
Observation Grazing situations yielded about 1 lb beef/lb N applied.
Intervention effect Range fertilization can increase water-use efficiency and improve forage quality and palatability.
Intervention effect Species composition changes are gradual at nitrogen applications of 50 lb N/acre/year or less.
Recommendation Fertilizer timing and grazing season and intensity can largely control species composition changes.
Intervention effect Drastic species composition changes are usually confined to nitrogen applications greater than 150 lb N/acre/year.

Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

Differences in nitrogen transport and assimilation appear related to plant composition and nitrogen use efficiency.

Taxon: CucumberCucumis sativust0
Outcome: plant composition and efficiency of N usagee0
Qualifier: differences in N transport and assimilatione0

Verbatim

e0
“differences in N transport and assimilation appear to bear considerably on plant composition and efficiency of N usage”
✓ located verbatim in the source · abstract, characters 926–1044

t0
“Cucumber”
✓ located verbatim in the source · title, characters 72–80

Title

A Physiological Basis for Different Patterns of Nitrate Accumulation in Cucumber and Pea1

Frederick C. Olday; Allen V. Barker; Donald N. Maynard Journal of the American Society for Horticultural Science 1976. doi:10.21273/jashs.101.3.219

Other claims from this paper (12)

Observation Cucumber accumulated more than pea.
Observation Only 2% of cucumber reductase activity was in roots.
Observation Nearly 92% of cucumber reductase activity was in blades.
Observation Pea reductase activity was more evenly distributed.
Observation Pea blades contained 67% of reductase activity.
Observation Pea roots contained 18% of reductase activity.
Observation Cucumber root bleeding sap contained 80% nitrate nitrogen.
Observation Pea root sap contained 30% nitrate nitrogen.
Observation The remaining 70% of pea root sap nitrogen consisted of amino acids and amides.
Observation Asparagine or aspartic acid was the major reduced nitrogen carrier in pea.
Observation Glutamine was the major reduced nitrogen carrier in cucumber.
Mechanism Differences in root reduction appear to explain nitrate accumulation differences.

Associationobservedoriginal resultmeasured

Claim · model-written summary

Emergent species had higher nitrogen content and nonsignificantly higher nitrogen use efficiency than underlayer species.

Taxon: A. excelsaLiquidambar excelsae0
Outcome: nitrogen contente0
Direction: highere0
Comparator: underlayer speciese0

Verbatim

e0
“The emergent species (A. excelsa and Q. lineata)have higher nitrogen content than the underlayer species (G. rostrata and E. lineata).”
✓ located verbatim in the source · abstract, characters 1310–1444

e1
“Although not significant, emergen species have higher NUE than underlayer species”
✓ located verbatim in the source · abstract, characters 1582–1663

Title

Nitrogen–use efficiency in different vegetation type at Cikaniki Research Station, Halimun-Salak Mountain National Park, West Java

SUHARNO SUHARNO; IMAM MAWARDI; SETIABUDI SETIABUDI; et al. Biodiversitas Journal of Biological Diversity 1970. doi:10.13057/biodiv/d080409

Other claims from this paper (19)

Observation The surveyed vegetation contained 61 trees from 24 species.
Observation Altingia excelsa had the highest reported importance value.
Observation Castanopsis javanica had an importance value of 39,698.
Observation Platea latifolia had an importance value of 27,684.
Observation Garcinia rostrata had an importance value of 21,151.
Observation Schima walichii had an importance value of 16,049.
Observation Eugenia lineata had a lower importance value of 13,967.
Observation Melanochyla caesa had a lower importance value of 12,241.
Observation Quercus lineata had a lower importance value of 10,766.
Observation platea excelsa had a lower importance value of 10,766.
Observation Other trees had importance values below 10.
Observation Quercus lineata had the highest reported specific leaf area, 0,01153.
Observation G. rostrata specific leaf area was 0,00821.
Observation A. excelsa specific leaf area was 0,00579.
Observation E. lineata specific leaf area was reported as 0,00984 g/cm2.
Observation A. excelsa had the highest stomatal count, 85,10/mm2.
Observation E. lineata had a stomatal count of 74,40/mm2.
Observation Q. lineata had a stomatal count of 53,70/mm2.
Observation G. rostrata had a stomatal count of 18,4 /mm2.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Straw mulch increased water-use efficiency.

Taxon: barleyHordeum vulgaret0
Treatment: straw mulche0
Outcome: efficiency of water usee0
Direction: increasede0

Not reportedComparator

Verbatim

e0
“Application of nitrogen, straw mulch and a foliar coating of kaolin increased the efficiency of water use”
✓ located verbatim in the source · abstract, characters 610–715

t0
“barley (Hordeum vulgare L.)”
✓ located verbatim in the source · title, characters 97–124

Title

Effect of nitrogen rates, mulching and antitranspirants on water use and water use efficiency of barley (Hordeum vulgare L.) varieties grown under dryland conditions

S. K. Agarwal; Rajat De The Journal of Agricultural Science 1979. doi:10.1017/s0021859600062754

Other claims from this paper (8)

Observation Ratna and Vijaya barley had similar water-use efficiency.
Observation Total water use differed little across treatments.
Intervention effect Straw mulch reduced evapotranspiration at tillering and pre-flowering stages.
Intervention effect Kaolin reduced evapotranspiration at tillering and pre-flowering stages.
Intervention effect Straw mulch enabled more water use at grain formation.
Intervention effect Kaolin enabled more water use at grain formation.
Intervention effect Nitrogen application increased water-use efficiency.
Intervention effect Foliar kaolin increased water-use efficiency.

“nitrogen use efficiency”

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