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“nitrogen use efficiency”

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Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Higher irrigation increased nitrogen use efficiency and assimilatory nitrogen use efficiency.

Taxon: Fraser Firt0
Treatment: Higher irrigation treatmentse0
Outcome: nitrogen use efficiency (NUE) and assimilatory nitrogen use efficiencye0
Direction: increasede0

Not reportedComparator

Verbatim

e0
“Higher irrigation treatments increased nitrogen use efficiency (NUE) and assimilatory nitrogen use efficiency”
✓ located verbatim in the source · abstract, characters 670–779

t0
“Fraser Fir”
✓ located verbatim in the source · title, characters 62–72

Title

Growth, Biomass, and Nitrogen Use Efficiency of Containerized Fraser Fir (Abies fraseri) as Related to Irrigation and Nitrogen Fertilization

Pascal Nzokou; Bert M. Cregg HortScience 2010. doi:10.21273/hortsci.45.6.946

Other claims from this paper (11)

Intervention effect Height growth increased by 12% to 35% with increased irrigation.
Intervention effect Stem diameter growth increased by 4% to 32% with increased irrigation.
Association Irrigation was inversely related to foliar nitrogen content.
Intervention effect Irrigation had no effect on foliar phosphorus, potassium, magnesium and manganese.
Intervention effect Irrigation increased foliar calcium.
Observation Approximately 2.0% to 4.5% of applied nitrogen was lost through leaching.
Mechanism High irrigation increased total biomass through greater root and stem biomass.
Mechanism Higher irrigation may raise nitrogen use efficiency through increased carbon assimilation and net primary productivity.
Intervention effect Irrigation had no clear effect on root weight ratio.
Intervention effect The lowest irrigation gave a higher index of nitrogen availability per unit foliage.
Mechanism Under water stress, nutrient supply to organs may buffer reduced assimilation and nitrogen use efficiency.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Optimized water and nitrogen supply improved nitrogen use efficiency, partial nitrogen production efficiency and water use efficiency.

Taxon: CucumberCucumis sativust0
Treatment: optimized water and nitrogen supplye0
Outcome: nitrogen use efficiency,partial nitrogen production efficiency,and the water use efficiencye0
Direction: improvede0

Not reportedComparator

Verbatim

t0
“Greenhouse Winter-spring Cucumber”
✓ located verbatim in the source · title, characters 100–133

e0
“optimized water and nitrogen supply improved nitrogen use efficiency,partial nitrogen production efficiency,and the water use efficiency”
✓ located verbatim in the source · abstract, characters 1542–1678

Title

Effects of Water and Nitrogen Supply on Dry Matter Accumulation,Nutrient Uptake and Distribution in Greenhouse Winter-spring Cucumber

Huijun Wu Acta Agriculturae Boreali-Sinica 2012

Other claims from this paper (17)

Observation Dry matter accumulation and nutrient uptake of cucumber had similar S-curve characteristics.
Observation The fruiting stage was the critical stage for dry matter accumulation and nutrient uptake.
Intervention effect Root dry matter was not significantly affected by the different water and nitrogen application patterns.
Intervention effect Dry matter of leaves, stems and fruits was affected by water and nitrogen application patterns during the fruiting stage.
Intervention effect Optimized water and nitrogen application rates improved dry matter accumulation and its ratio to total dry matter, especially in fruit.
Intervention effect Optimized water and nitrogen application rates decreased the root to shoot ratio.
Observation Cucumber absorbed 396 to 490 kg/ha N to attain a yield of 150 to 200 t/ha.
Observation Cucumber absorbed 93 to 127 kg/ha P.
Observation Cucumber absorbed 516 to 529 kg/ha K.
Observation Nutrient uptake followed the order K, N, P to attain a cucumber yield of 150 to 200 t/ha.
Observation The N:P:K ratio of nutrient uptake was 1:0.21:1.17 under optimized water and nitrogen application rates.
Intervention effect Nitrogen fertilization improved dry matter and nitrogen uptake of cucumber.
Intervention effect Reduced water supply improved dry matter and nitrogen uptake of cucumber.
Intervention effect Compared with conventional supply, optimized water and nitrogen application improved dry matter accumulation, nitrogen uptake and the ratio of nitrogen in fruit.
Intervention effect The ratios of P and K to N were increased by the optimized treatment.
Intervention effect The uptake of P and K was decreased by the optimized treatment.
Intervention effect Optimized water and nitrogen supply decreased luxury uptake of phosphorus and potassium.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Nitrogen use efficiency and nitrogen uptake efficiency were higher with conventional than reduced tillage.

Taxon: ChickpeaCicer arietinumt0
Treatment: CTe0
Outcome: nitrogen use efficiency (NUE) and nitrogen uptake efficiency (NUpE)e0
Direction: highere0
Comparator: RTe0

Verbatim

e0
“nitrogen use efficiency (NUE) and nitrogen uptake efficiency (NUpE) were higher CT than RT”
✓ located verbatim in the source · abstract, characters 716–806

t0
“Chickpea”
✓ located verbatim in the source · title, characters 39–47

Title

Comparisons Nitrogen Use Efficiency in Chickpea under Different Tillage Systems and Soil Residual Nitrogen

Nihal KAYAN; İmren KUTLU; Nazife AYTER; et al. ÇOMÜ Ziraat Fakültesi Dergisi 2020. doi:10.33202/comuagri.662269

Other claims from this paper (4)

Intervention effect Chickpea plant protein ratio, plant nitrogen ratio and nitrogen utilization efficiency were higher with reduced than conventional tillage.
Intervention effect Increasing nitrogen doses did not affect chickpea plant protein or nitrogen ratios.
Intervention effect Nitrogen use and uptake efficiency decreased as nitrogen dose increased.
Intervention effect Nitrogen utilization efficiency increased with increasing nitrogen dose.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Banded nitrogen increased nitrogen-use efficiency.

Taxon: tobaccoNicotiana tabacumt0
Outcome: efficiency of N usee0
Direction: increasede0

Not reportedTreatmentComparator

Verbatim

e0
“offers increased efficiency of N use”
✓ located verbatim in the source · abstract, characters 385–421

t0
“Tobacco Production”
✓ located verbatim in the source · title, characters 68–86

Title

Growth, Yield, and Efficiency of Potassium Fertilizer Use in Burley Tobacco Production

J. L. Sims; William O. Thom; Kenneth L. Wells; et al. UKnowledge (University of Kentucky) 1994

Other claims from this paper (4)

Intervention effect Banded nitrogen after transplanting alleviated manganese toxicity.
Intervention effect Banded nitrogen after transplanting alleviated other nutrient imbalances.
Intervention effect Banded nitrogen improved early tobacco growth and yield.
Association Posttransplant nitrogen fertilizer was less likely to leach in excess rain.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Postponing nitrogen fertilization improved nitrogen-use efficiency.

Taxon: late ricet0
Treatment: postponing nitrogen fertilizatione0
Outcome: nitrogen-use efficiencye0
Direction: improvee0

Not reportedComparator

Verbatim

e0
“postponing nitrogen fertilization could appropriately improve the nitrogen-use efficiency”
✓ located verbatim in the source · abstract, characters 676–765

t0
“late rice”
✓ located after whitespace/quote normalisation · title, characters 55–64

Title

Effects of Nitrogen Management on Yield and Quality of Late Rice and Nitrogen-use Efficiency

Xiangming Zhang T'u Jang T'ung Pao 2008

Other claims from this paper (13)

Intervention effect Postponed nitrogen fertilization maintained suitable NH4+-N concentration.
Intervention effect Postponed fertilization promoted late rice growth, yield, dry matter and nitrogen accumulation.
Observation Rice yield was maximal with 53.8% of nitrogen as basal fertilizer.
Association Milling quality improved as the panicle fertilizer ratio increased.
Association Appearance quality worsened as the panicle fertilizer ratio increased.
Association Cooking quality worsened as the panicle fertilizer ratio increased.
Observation At 40.3% basal nitrogen, late rice nitrogen uptake was maximal.
Observation At 40.3% basal nitrogen, nitrogen-use efficiency was maximal.
Association Soil nitrogen dependency had a parabolic relationship with basal fertilizer ratio.
Observation Soil nitrogen dependency was lowest at a 40.0% basal fertilizer ratio.
Association Nitrogen harvest index increased as basal fertilizer application decreased.
Association Nitrogen requirement per 100 kg grain increased as basal fertilizer application decreased.
Recommendation The authors recommend 40%-50% basal, 20%-30% tiller and 20%-30% panicle fertilizer.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Nitrogen fertilization significantly decreased spinach nitrogen use efficiency.

Taxon: SpinachSpinacia oleraceat0
Treatment: Nitrogen fertilizatione0
Outcome: nitrogen use efficiencye0
Direction: decreasede0

Not reportedComparator

Verbatim

e0
“Nitrogen fertilization significantly decreased nitrogen use efficiency.”
✓ located verbatim in the source · abstract, characters 807–878

t0
“Spinach”
✓ located verbatim in the source · title, characters 0–7

Title

Spinach-irrigating and fertilizing for optimum quality, quantity, and economy

Jinxiu Zhang; Yubo Yue; Zhimin Sha; et al. Acta Agriculturae Scandinavica Section B - Soil & Plant Science 2014. doi:10.1080/09064710.2014.936489

Other claims from this paper (7)

Intervention effect Spinach yield was highest at 16.5% soil water content with 170 kg ha−1 nitrogen fertilizer.
Intervention effect Spinach yield was lowest at 12.5% soil water content with no nitrogen fertilizer.
Association Spinach nitrate content depended strongly on irrigation and nitrogen fertilization levels.
Association Spinach oxalate content depended strongly on irrigation and nitrogen fertilization levels.
Intervention effect Increasing nitrogen fertilizer use improved spinach water use efficiency.
Intervention effect Increasing nitrogen fertilizer use improved profit from spinach production.
Recommendation The authors recommend 85 kg ha−1 nitrogen fertilizer and 16.5% soil water content for field spinach to optimize quality and earnings.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Drought reduced photosynthetic nitrogen use efficiency, nitrogen utilization efficiency and biomass nitrogen use efficiency.

Taxon: sugarcanet0
Treatment: drought stresse0
Outcome: photosynthetic NUE, nitrogen utilization efficiency and biomass NUEe0
Direction: reducede0

Not reportedComparator

Verbatim

e0
“drought stress reduced the photosynthetic rate, growth parameters including plant height, leaf area; partial and total dry weights; and nitrogen use efficiency (NUE) traits including photosynthetic NUE, nitrogen utilization efficiency and biomass NUE”
✓ located verbatim in the source · abstract, characters 292–542

t0
“sugarcane varieties”
✓ located verbatim in the source · title, characters 64–83

Title

Nitrogen use efficiency and drought tolerant ability of various sugarcane varieties under drought stress at early growth stage

Dinh Thai Hoang; Takaragawa Hiroo; Kawamitsu Yoshinobu Plant Production Science 2018. doi:10.1080/1343943x.2018.1540277

Other claims from this paper (7)

Intervention effect Drought reduced photosynthetic rate in sugarcane varieties.
Intervention effect Drought reduced plant height and leaf area in sugarcane varieties.
Intervention effect Drought reduced partial and total dry weights in sugarcane varieties.
Observation Sugarcane varieties differed significantly in growth parameters, dry weights and NUE traits.
Observation Sugarcane varieties differed significantly in drought tolerant index.
Association NUE traits were positively correlated with drought tolerant index.
Recommendation Aboveground and stalk dry-weight drought tolerant indices were proposed for evaluating drought tolerance in sugarcane varieties.

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Biochar-loaded nitrogen reduced nitrogen recovery use efficiency.

Taxon: Paddyt0
Treatment: Biochar Loadingt0
Outcome: nitrogen recovery use efficiencye0
Direction: reducede0

Not reportedComparator

Verbatim

e0
“reduced nitrogen recovery use efficiency”
✓ located verbatim in the source · abstract, characters 634–674

t0
“Biochar Loading on Paddy Growth”
✓ located verbatim in the source · title, characters 34–65

Title

[Effects of Returning Nitrogen by Biochar Loading on Paddy Growth, Root Morphology, and Nitrogen Use Efficiency].

Ying-Liang Yu; Yue-Man Wang; Peng-Fu Hou; et al. PubMed 2018. doi:10.13227/j.hjkx.201804034

Other claims from this paper (10)

Intervention effect Biochar-loaded nitrogen decreased aboveground paddy biomass by 16% versus nitrogen solution.
Intervention effect Biochar-loaded nitrogen decreased aboveground paddy nitrogen uptake by 14% versus nitrogen solution.
Intervention effect Biochar-loaded nitrogen increased paddy root-shoot biomass ratios by 25%-27%.
Intervention effect The two nitrogen application methods affected paddy adventitious root length and volume.
Association Paddy underground biomass correlated positively with soil ammonium content.
Association Paddy underground nitrogen uptake correlated positively with soil ammonium content.
Association Aboveground paddy nitrogen uptake correlated negatively with root tips.
Intervention effect Plant uptake nitrogen use efficiency did not differ significantly between chemical and biochar-loaded nitrogen.
Intervention effect Biochar promoted soil mineral nitrogen content for plant uptake.
Recommendation The authors recommend biochar as a carrier to return nitrogen from waterbodies to fields.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Irrigation increased nitrogen uptake efficiency and nitrogen use efficiency.

Taxon: sweet potatoIpomoea batatast0
Treatment: Irrigatione0
Outcome: nitrogen uptake efficiency and nitrogen use efficiencye0
Direction: increasede0

Not reportedComparator

Verbatim

e0
“Irrigation increased nitrogen uptake efficiency and nitrogen use efficiency. In the treatment”
✓ located verbatim in the source · abstract, characters 2206–2299

t0
“sweet potato”
✓ located verbatim in the source · title, characters 66–78

Title

Optimizing nitrogen and irrigation application for drip irrigated sweet potato with plastic film mulching in eastern China

Youliang Zhang; Yongqi Tang; Zhaohui Wang; et al. Agricultural Water Management 2024. doi:10.1016/j.agwat.2024.108997

Other claims from this paper (9)

Intervention effect The 180 kg hm −2 nitrogen treatment had lower soil water content than the 90 and 270 kg hm −2 treatments.
Intervention effect Increasing nitrogen application increased soil nitrogen content and residue at 0–40 cm.
Intervention effect The 180 kg hm −2 treatment had significantly lower soil nitrate-N residue than the 270 kg hm −2 treatment.
Intervention effect Sweet potato growth, tuber dry matter, large and medium tuber number and weight, and yield rose and then fell as nitrogen rates increased.
Intervention effect At 60 % soil wetting, tuber yield was higher with 180 kg hm −2 nitrogen than with 90 or 270 kg hm −2.
Intervention effect Moderate nitrogen improved tuber crude protein, starch, and soluble sugar content.
Intervention effect Under 60 % soil wetting, nitrogen use efficiency and uptake rose and then fell as nitrogen rates increased.
Intervention effect At 180 kg hm −2 nitrogen, 30 % and 60 % soil wetting had higher nitrogen use efficiency than no irrigation.
Recommendation The authors identify 180 kg/hm 2 nitrogen with 60 % soil wetting as suitable for local sweet potato cultivation.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Increasing nitrogen application significantly decreased nitrogen use efficiency.

Taxon: maize hybridst0
Treatment: increased N applicatione0
Outcome: N use efficiencye0
Direction: decreasede0

Not reportedComparator

Verbatim

e0
“With increased N application, N uptake efficiency and N use efficiency decreased significantly”
✓ located verbatim in the source · abstract, characters 492–586

t0
“maize hybrids”
✓ located verbatim in the source · title, characters 54–67

Title

Genotype differences on nitrogen use efficiency among maize hybrids

Jianan Liu; Guohua Mi; Fanjun Chen; et al. Plant Nutrition and Fertilizing Science 2002

Other claims from this paper (9)

Observation Grain yield variation among maize hybrids was 62% and 57% under two nitrogen levels.
Observation Total shoot nitrogen accumulation varied by 55% and 48% under two nitrogen levels.
Observation Nongda 108 had the highest grain yield and shoot nitrogen accumulation.
Observation Zhongdan 120 had the lowest grain yield and shoot nitrogen accumulation.
Observation Zhong dan 2 had the lowest grain yield and shoot nitrogen accumulation.
Intervention effect Increasing nitrogen application significantly decreased nitrogen uptake efficiency.
Intervention effect Nitrogen utilization efficiency stayed almost the same with increased nitrogen application.
Observation Genotypic variation in nitrogen use efficiency decreased significantly.
Association Genotypic variation in nitrogen use efficiency depended mainly on uptake efficiency at both nitrogen levels.

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“nitrogen use efficiency”

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