Search claims · PlantClaims

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The three foliar fertilizers improved total N, total N P and total N K content.

Taxon: Cymbidium WenshanenseCymbidium wenshanensee0
Treatment: 3 fifferent fertilizere0
Outcome: content of total N,total N P and total N Ke0
Direction: improvede0

Not reportedComparator

Verbatim

e0
“The content of total N,total N P and total N K in Cymbidium Wenshanense was improved when 3 fifferent fertilizer were applied”
✓ located verbatim in the source · abstract, characters 794–919

Title

Effects of 3 Kinds of Foliage Spray on Photosynthesis and Nutrient Elements for Cymbidium Wenshanense

Feng Zhao Southern Horticulture 2013

Other claims from this paper (3)

Intervention effect Cuijun B-2 at 1:500 produced relatively larger net photosynthetic rate, stomatal conductance and transpiration rate.
Intervention effect Cuijun B-2 at 1:500 produced relatively smaller intercellular CO2 concentration.
Intervention effect Cuijun B-2 performed better than Potassium Dihydrogen Phosphate and Biogen.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Nitrate nitrogen produced more total N, total soluble N and nitrate N than ammonium nitrogen.

Taxon: Italian ryegrassLolium multiflorumt0
Treatment: NO 3 − ‐Ne0
Outcome: Total‐N, total soluble‐N and nitrate‐Ne0
Direction: much moree0
Comparator: NH 4 + ‐Ne0

Verbatim

e0
“Total‐N, total soluble‐N and nitrate‐N, were much more, and protein‐N, amide‐N (psrticularly asparagine‐N) and α‐amino‐N much less in grass given NO 3 − ‐N than in grass given NH 4 + ‐N.”
✓ located verbatim in the source · abstract, characters 317–503

t0
“Italian ryegrass”
✓ located verbatim in the source · title, characters 48–64

Title

Nitrogen fractions and soluble carbohydrates in Italian ryegrass II.—Effects of light intensity, form and level of nitrogen

T. Z. Nowakowski; R. K. Cunningham Journal of the Science of Food and Agriculture 1966. doi:10.1002/jsfa.2740170401

Other claims from this paper (11)

Intervention effect Ryegrass grew best under full daylight.
Intervention effect With ammonium nitrogen, yield was greatest at 500 ppm.
Intervention effect With nitrate nitrogen, yield was greatest at 200 ppm.
Intervention effect Nitrate nitrogen produced less protein N, amide N and alpha amino N than ammonium nitrogen.
Intervention effect Nitrogen-form differences grew with increasing applied N.
Intervention effect Shading increased total N, soluble N, soluble organic N and nitrate N.
Intervention effect Increasing applied nitrogen increased total N, soluble N, soluble organic N and nitrate N.
Intervention effect Shading decreased protein N and soluble carbohydrates.
Intervention effect Increasing applied nitrogen decreased protein N and soluble carbohydrates.
Intervention effect Light had its strongest effect on soluble carbohydrates at 100 ppm nitrogen and less effect at higher nitrogen.
Mechanism N-Serve influenced grass composition indirectly by keeping soil N in ammonium form.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Total N credit for 1994 equalled one quarter of total N fixation.

Taxon: legumest0
Outcome: Total N credite0
Value: 1/4e0
Comparator: total N fixatione0

Verbatim

t0
“nitrogen gains from legumes”
✓ located verbatim in the source · title, characters 29–56

e0
“Total N credit for 1994 was calculated to be 62 million kg N which is equal to 1/4 of total N fixation”
✓ located verbatim in the source · abstract, characters 1370–1472

Title

Present and potential future nitrogen gains from legumes in major Soil Zones of the prairies

V. O. Biederbeck; W. A. Rice; Chris van Kessel; et al. 1996

Other claims from this paper (19)

Observation Legume hectarage increased 69% between 1991 and 1994, mainly through more pulse cropping.
Observation Legume hectarage totalled 2.4 million in 1994.
Observation Legume hectarage is expected to reach 5.5 million by 2005.
Observation Forage legumes accounted for 85% of total N fixation in 1994, which occurred mainly in the northern parklands.
Observation The average N fixation rate of legumes was 104 kg/ha.
Observation Total legume N fixation in 1994 was 250 million kg N.
Observation Total legume N fixation in 1994 equalled 24% of all fertilizer N used that year.
Observation Present legume N fixation can be valued at $220 million, compared with recent fertilizer N costs.
Observation Total N credit for 1994 was 62 million kg N.
Observation Legume crops gave an average net N gain of 26 kg N/ha, although the amounts vary widely with legume type.
Observation Colored beans had the lowest N credit estimate, 0 kg N/ha.
Observation Lentils had an N credit estimate of 9.4.
Observation Peas had an N credit estimate of 18.1.
Observation Forage hay legumes had an N credit estimate of 36.4.
Observation Forage seed legumes had the highest N credit estimate, 65.4 kg N/ha.
Recommendation Including forage, grain or green manure legumes in rotations can give substantial energy savings for Prairie cropping systems.
Observation Legume N fixation is projected to total about 550 million kg N by 2005.
Observation Legume residual N credit is projected at about 190 million kg by 2005.
Observation Legume crops are projected to give an average net N gain of 35 kg N/ha by 2005.

Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Leaf N:P did not correlate with soil organic C, total N or total P.

Taxon: plantsViridiplantaet0
Outcome: leaf N: P ratioe0
Comparator: soil organic C, soil total N and soil total Pe0

Not reportedDirection

Verbatim

e0
“leaf N: P ratio was not correlated to soil organic C, soil total N and soil total P”
✓ located verbatim in the source · abstract, characters 1769–1852

t0
“plants”
✓ located verbatim in the source · abstract, characters 2035–2041

Title

[Latitudinal Changes in Plant Stoichiometric and Soil C, N, P Stoichiometry in Loess Plateau].

Ting Li; Qiang Deng; Zhi-you Yuan; et al. PubMed 2015

Other claims from this paper (11)

Association Leaf carbon, C:N and C:P ratios declined with latitude.
Association Leaf nitrogen and phosphorus increased with latitude.
Association Leaf N:P ratio had no significant relationship with latitude.
Association Soil organic carbon and total nitrogen declined with latitude and soil depth.
Association Soil phosphorus first increased and then decreased across latitude.
Association Soil C:N was unchanged with latitude in the upper two soil layers.
Association Soil C:N declined with latitude at 20–40 cm depth.
Association Soil C:P and N:P ratios declined with latitude in all soil layers.
Association Leaf C, C:N and C:P ratios correlated with soil organic C, total N and total P.
Association Leaf N and P correlated with soil organic C and total N.
Observation The plants were judged to be phosphorus limited on the Loess Plateau.

Observationobservedoriginal resultmeasured

Claim · model-written summary

High sulfate-S:total S and nitrate-N:total N ratios signaled stress.

Taxon: Norway sprucePicea abiese1
Outcome: sulfate-S:total S and nitrate-N:total N ratiose0
Direction: highe0

Verbatim

e0
“Other symptoms of stress observed were high sulfate-S:total S and nitrate-N:total N ratios.”
✓ located verbatim in the source · abstract, characters 1033–1124

e1
“Needles from healthy Norway spruce”
✓ located verbatim in the source · abstract, characters 0–34

Title

Foliar mineral composition, fertilization and dieback of Norway spruce in the Belgian Ardennes

H. J. van Praag; F. Weissen Tree Physiology 1986. doi:10.1093/treephys/1.2.169

Other claims from this paper (10)

Intervention effect Fertilization increased needle calcium, manganese, phosphorus and copper.
Intervention effect Fertilization reduced needle sulfur measures, potassium and aluminum.
Observation Calcium, magnesium, copper and boron levels were low at both sites.
Observation Calcium and magnesium may have been deficient at Langesthal.
Observation Langesthal needle sulfur averaged 198 mg 100 g(-1) dry weight and may have been toxic.
Observation Sulfur level was normal at Willerzie.
Observation Older Langesthal needles had N:S ratio below the healthy-growth threshold of eight.
Observation Langesthal manganese was one-fifth Willerzie level yet probably adequate.
Observation Aluminum and iron levels were very high at both sites.
Observation Much aluminum and most iron occurred as a removable surface deposit.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen application increased total N, total soluble N, soluble nonprotein N, and soluble protein N in first-harvest alfalfa.

Taxon: alfalfaMedicago sativae1
Treatment: N appliede0
Outcome: mean concentrations of total N (TN), total soluble N (TSN), soluble nonprotein (SNPN), and soluble protein N (SPN)e0
Direction: increasedme0

Not reportedComparator

Verbatim

e0
“As N applied increased, mean concentrations of total N (TN), total soluble N (TSN), soluble nonprotein (SNPN), and soluble protein N (SPN) increasedm first‐harvest herbage”
✓ located verbatim in the source · abstract, characters 792–963

e1
“alfalfa ( Medicago sativa L.)”
✓ located verbatim in the source · abstract, characters 177–206

Title

Release of Soluble Protein and Nitrogen in Alfalfa. II. Infleunce of Potassium and Nitrogen Fertilizer on Three Cultivars¹

R. P. Walgenbach; G. C. Marten Crop Science 1981. doi:10.2135/cropsci1981.0011183x002100060013x

Other claims from this paper (9)

Intervention effect Soluble protein N rose 10.8% at 300 kg N/ha relative to unfertilized alfalfa.
Intervention effect Soluble protein N rose 13.3% at 700 kg N/ha relative to unfertilized alfalfa.
Intervention effect Increasing potassium reduced total N, total soluble N, and soluble nonprotein N in first-harvest alfalfa.
Intervention effect Potassium fertilization did not change soluble protein N concentration.
Observation Saranac exceeded Ramsey for first-harvest total N, total soluble N, and soluble nonprotein N.
Observation 520 exceeded Ramsey for first-harvest total N, total soluble N, and soluble protein N.
Observation Cultivars did not differ in second-harvest nitrogen fractions.
Intervention effect Neither potassium nor nitrogen fertilization reduced apparent bloat potential as estimated by soluble protein N release.
Intervention effect High nitrogen fertilization slightly increased apparent bloat potential.

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

N fertilizer increased total N at most 40%.

Taxon: Douglas FirPseudotsuga menziesiit0
Outcome: total Ne0
Direction: increasede0
Value: 40%e0

Not reportedTreatmentComparator

Verbatim

e0
“total N was increased at most 40%”
✓ located verbatim in the source · abstract, characters 491–524

t0
“Douglas Fir”
✓ located verbatim in the source · title, characters 30–41

Title

Total and Soluble Nitrogen in Douglas Fir in Relation to Plant Nitrogen Status

R. Van Den Driessche; J. E. Webber Canadian Journal of Forest Research 1975. doi:10.1139/x75-084

Other claims from this paper (8)

Intervention effect N fertilizer increased soluble N up to 19 times control values.
Intervention effect Total N in one-year foliage, current twigs and roots differed across N treatments.
Intervention effect Guanidino compounds in one-year twigs differed across N treatments.
Association Six N measurements explained 60% of variance in plant size.
Intervention effect Soluble N compounds were higher at 21 °C than 10 °C.
Intervention effect Total N concentration was not higher at 21 °C than 10 °C.
Intervention effect Moisture stress increased soluble N compounds, particularly proline.
Observation Provenances differed in soluble N compound and total N concentrations.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Applying 75% NO3- -N+25% NH4+ -N significantly increased fruit NH4+ -N, total amino acid and total N contents of cherry tomato compared with 100% NO3- -N.

Taxon: cherry tomatoSolanum lycopersicum var. cerasiformet0
Treatment: 75% NO3- -N+25% NH4+ -Ne1
Outcome: fruit NH4+ -N, total amino acid, and total N contentse1
Direction: increasede1
Comparator: 100% NO3- -Ne1

Verbatim

t0
“cherry tomato nitrogen metabolism”
✓ located verbatim in the source · title, characters 48–81

e1
“Applying 75% NO3- -N+25% NH4+ -N slightly increased the single fruit mass, and increased the fruit NH4+ -N, total amino acid, and total N contents and N accumulation significantly, compared with applying 100% NO3- -N”
✓ located verbatim in the source · abstract, characters 278–494

Title

[Effects of applying different nitrogen form on cherry tomato nitrogen metabolism during fruit development].

Qing-yu Li; Xin-juan Xu; Hai-long Gu; et al. PubMed 2010

Other claims from this paper (8)

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Applied N increased early total N and nitrate N concentrations in corn or tall fescue.

Taxon: Crope0
Treatment: applied Ne0
Outcome: total N and NO3‐Ne0
Direction: increasede0

Not reportedComparator

Verbatim

e0
“Crop concentrations of total N and NO3‐N during early growth increased consistently with amount of applied N.”
✓ located verbatim in the source · abstract, characters 311–420

Title

Crop yield—nitrate‐n and total n and k concentration relationships: Corn and fescuegrass

G. L. Terman; S. E. Allen Communications in Soil Science and Plant Analysis 1978. doi:10.1080/00103627809366856

Other claims from this paper (5)

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Shading increased total N, soluble N, soluble organic N and nitrate N.

Taxon: Italian ryegrassLolium multiflorumt0
Treatment: Shadinge0
Outcome: total‐N, total soluble‐N, soluble organic‐N and nitrate‐Ne0
Direction: increasede0

Not reportedComparator

Verbatim

e0
“Shading, or increasing the amount of N increased total‐N, total soluble‐N, soluble organic‐N and nitrate‐N, and decreased protein‐N and soluble carbohydrates.”
✓ located verbatim in the source · abstract, characters 570–728

t0
“Italian ryegrass”
✓ located verbatim in the source · title, characters 48–64

Title

Nitrogen fractions and soluble carbohydrates in Italian ryegrass II.—Effects of light intensity, form and level of nitrogen

T. Z. Nowakowski; R. K. Cunningham Journal of the Science of Food and Agriculture 1966. doi:10.1002/jsfa.2740170401

Other claims from this paper (11)

Intervention effect Ryegrass grew best under full daylight.
Intervention effect With ammonium nitrogen, yield was greatest at 500 ppm.
Intervention effect With nitrate nitrogen, yield was greatest at 200 ppm.
Intervention effect Nitrate nitrogen produced more total N, total soluble N and nitrate N than ammonium nitrogen.
Intervention effect Nitrate nitrogen produced less protein N, amide N and alpha amino N than ammonium nitrogen.
Intervention effect Nitrogen-form differences grew with increasing applied N.
Intervention effect Increasing applied nitrogen increased total N, soluble N, soluble organic N and nitrate N.
Intervention effect Shading decreased protein N and soluble carbohydrates.
Intervention effect Increasing applied nitrogen decreased protein N and soluble carbohydrates.
Intervention effect Light had its strongest effect on soluble carbohydrates at 100 ppm nitrogen and less effect at higher nitrogen.
Mechanism N-Serve influenced grass composition indirectly by keeping soil N in ammonium form.

“total N”

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