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“nitrogen use efficiency”

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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 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.

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Nitrogen use efficiency declined significantly as nitrogen rate increased.

Treatment: increasing N levelse0
Outcome: Nitrogen use efficiency (NUE)e0
Direction: decreasede0

Not reportedTaxonComparator

Verbatim

e0
“Nitrogen use efficiency (NUE) significantly decreased with increasing N levels.”
✓ located verbatim in the source · abstract, characters 816–895

Title

GROWTH OF THREE WHEAT CULTIVARS AND NITROGEN USE EFFICIENCY AS AFFECTED BY NITROGEN FERTILIZER LEVELS AND SEEDING RATES

M El-Sayed; Gheith; E El-Metwally; et al. Zagazig Journal of Agricultural Research 2016. doi:10.21608/zjar.2016.65537

Other claims from this paper (6)

Intervention effect Higher nitrogen rates increased wheat growth traits through 125 kg N/fad.
Intervention effect Net assimilation rate rose significantly with nitrogen rate.
Intervention effect Seeding at 300 or 400 grains/m2 gave the highest values for the affected growth traits.
Intervention effect Seeding rate did not affect net assimilation rate or nitrogen use efficiency.
Observation Cultivars differed in growth traits, but did not differ in nitrogen use efficiency.
Recommendation The authors recommend Gemmiza-9 or Giza-168 at 300 or 400 grains/m2 with 125 kg N/fad.

Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Irrigation depth and nitrogen dose interacted significantly for watermelon nitrogen-use efficiency.

Taxon: WATERMELONCitrullus lanatust0
Treatment: the factorse0
Outcome: efficiency of nitrogen usee0

Not reportedDirection

Verbatim

e0
“however, there was a significant interaction of the factors for the efficiency of nitrogen use.”
✓ located verbatim in the source · abstract, characters 764–859

t0
“WATERMELON”
✓ located verbatim in the source · title, characters 0–10

Title

WATERMELON YIELD AND EFFICIENCY OF USE OF WATER AND NITROGEN

LAÉRCIO DA SILVA PEREIRA; EVERALDO MOREIRA DA SILVA; JOSÉ ORLANDO PIAUILINO FERREIRA; et al. Revista Caatinga 2019. doi:10.1590/1983-21252019v32n321rc

Other claims from this paper (4)

Intervention effect Nitrogen dose did not affect watermelon fruit yield or water-use efficiency.
Intervention effect Watermelon yield peaked at 39,549.45 kg ha-1 with 233.48 mm of water.
Intervention effect Water-use efficiency was maximal at a water depth of 110.42 mm.
Intervention effect Nitrogen use was most efficient with 232.21 mm water and 50 kg ha-1 nitrogen.

Associationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nitrogen rates and transplanting densities significantly affected nitrogen use efficiency.

Taxon: riceOryza sativat0
Treatment: Nitrogen rates and transplanting densitiese0
Outcome: nitrogen use efficiencye0

Not reportedDirection

Verbatim

e0
“Nitrogen rates and transplanting densities significantly affected nitrogen use efficiency”
✓ located verbatim in the source · abstract, characters 1227–1316

t0
“Rice”
✓ located verbatim in the source · title, characters 10–14

Title

Enhancing Rice Yield and Nitrogen Utilization Efficiency through Optimal Planting Density and Reduced Nitrogen Rates

Haijun Zhu; Tian Wen; Manwen Sun; et al. Agronomy 2023. doi:10.3390/agronomy13051387

Other claims from this paper (10)

Intervention effect N2B3 produced the highest mean yield, 9.30 t ha−1 over two years, 3.7~49.6% above other treatments.
Intervention effect N2B3 was associated with higher dry matter accumulation of 1538.22 g m−2.
Intervention effect N2B3 was associated with higher effective panicle number of 435.2 × 104 ha−1.
Mechanism The reported yield increase was attributed partly to increased nitrate reductase activity at booting.
Mechanism The reported yield increase was attributed partly to glutamine synthase at heading.
Mechanism The reported yield increase was linked to maintained higher SPAD value and leaf area index.
Association The nitrogen fertilizer contribution to yield decreased as nitrogen rate increased.
Intervention effect N2B3 improved nitrogen use efficiency.
Intervention effect N2B3 stabilized rice yield with reduced nitrogen fertilizer application.
Recommendation The authors suggest N2B3 for enhancing yield through nitrogen use efficiency under low nitrogen supplementation.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Nitrogen significantly increased irrigation efficiency and soil water use efficiency of corn.

Taxon: cornZea mays subsp. mayse0
Treatment: nitrogen fertilizere0
Outcome: crop irrigation efficiency and soil water use efficiencye0
Direction: increasede0

Not reportedComparator

Verbatim

e0
“applied nitrogen fertilizer significantly increased crop irrigation efficiency and soil water use efficiency of corn”
✓ located verbatim in the source · abstract, characters 580–696

Title

Impact of Nitrogen Fertilization on Yield and Water Use Efficiency of Strip Intercropping Crops

Yang Jun-lin Gansu Agricultural Science and Technology 2010

Other claims from this paper (3)

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Increasing wheat residue significantly increased grain nitrogen percentage, nitrogen uptake efficiency, and nitrogen use efficiency.

Taxon: WHEATTriticum aestivumt0
Treatment: increasing wheat residue levele0
Outcome: Grain nitrogen percentage,nitrogen uptake efficiency and nitrogen use efficiencye0
Direction: increasede0

Not reportedComparator

Verbatim

e0
“Grain nitrogen percentage,nitrogen uptake efficiency and nitrogen use efficiency significantly increased with increasing wheat residue level.”
✓ located verbatim in the source · abstract, characters 1055–1196

t0
“IN WHEAT”
✓ located verbatim in the source · title, characters 108–116

Title

THE EFFECT OF TILLAGE AND WHEAT RESIDUE MANAGEMENT ON NITROGEN UPTAKE EFFICIENCY AND NITROGEN HARVEST INDEX IN WHEAT

Elnaz EBRAHIMIAN; Alireza KOOCHEKI; Mehdi NASSIRI MAHALLATI; et al. Turkish Journal Of Field Crops 2016. doi:10.17557/tjfc.90410

Other claims from this paper (5)

Intervention effect Disk tillage gave the lowest grain nitrogen percentage, 2.58%.
Intervention effect Chisel plough plus disk gave the highest grain nitrogen percentage, 2.77%.
Intervention effect Chisel plough plus disk maximized nitrogen uptake efficiency and nitrogen use efficiency.
Intervention effect Applying 75% wheat residue increased nitrogen uptake efficiency by 61.2% versus control.
Recommendation The authors recommend wheat residue with reduced tillage to improve nitrogen use, especially in arid and semi-arid regions.

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Organic nitrogen form significantly affected melon nitrogen use efficiency.

Treatment: form of organic nitrogene0
Outcome: nitrogen use efficiencye0

Not reportedTaxonComparatorDirection

Verbatim

e0
“the form of organic nitrogen applied to the crop has a significant impact on biomass, yield and nitrogen use efficiency”
✓ located verbatim in the source · abstract, characters 1062–1181

Title

Nitrogen use efficiency in organic melon production under greenhouse conditions in South West of Morocco

Kaoutar Aouass; Lahcen Kenny; Jamal Krim 2020

Other claims from this paper (6)

Intervention effect Organic nitrogen form significantly affected melon biomass.
Intervention effect Organic nitrogen form significantly affected melon yield.
Intervention effect Organic fertilizer produced about 32 T/Ha melon yield, compared with 29 T/Ha under mineral fertilizer.
Observation Organic treatments differed significantly in melon yield.
Observation Organic treatments differed significantly in melon agronomic efficiency.
Observation Organic treatments differed significantly in melon physiological efficiency.

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

McN2 significantly improved agronomic nitrogen use efficiency.

Taxon: riceOryza sativat0
Treatment: McN2e0
Outcome: agronomic nitrogen use efficiencye0
Direction: improvede0
Comparator: MoN3e0

Verbatim

e0
“compared with MoN3, McN2 significantly improved nitrogen dry matter production efficiency, apparent nitrogen recovery efficiency, physiological nitrogen use efficiency, agronomic nitrogen use efficiency”
✓ located verbatim in the source · abstract, characters 1724–1926

t0
“rice”
✓ located verbatim in the source · title, characters 146–150

Title

Effects of reduced nitrogen application combined with organic fertilizer on yield formation and nitrogen utilization in mechanically transplanted rice

Ning Liu; Ping Fan; Cheng Wang; et al. ACTA AGRONOMICA SINICA 2025. doi:10.3724/sp.j.1006.2026.52013

Other claims from this paper (13)

Intervention effect Organic fertilizer increased photosynthetic leaf area index and potential.
Intervention effect Organic fertilizer slowed chlorophyll degradation.
Intervention effect Organic fertilizer delayed leaf senescence.
Intervention effect Organic fertilizer enhanced photosynthetic performance.
Intervention effect Moderate nitrogen reduction with organic fertilizer increased effective panicles, grains per panicle and thousand-grain weight.
Intervention effect McN2 increased two-year mean yield by 6.04% versus chemical fertilizer alone.
Observation Dry matter accumulation at maturity ranked N2 above N3, N1 and N0.
Observation Nitrogen accumulation at maturity ranked N2 above N3, N1 and N0.
Intervention effect McN2 significantly improved nitrogen dry matter production efficiency.
Intervention effect McN2 significantly improved apparent nitrogen recovery efficiency.
Intervention effect McN2 significantly improved physiological nitrogen use efficiency.
Intervention effect McN2 significantly improved partial factor productivity of nitrogen.
Mechanism Authors infer fertilizer with 25% less nitrogen improves grain allocation and nitrogen transport.

Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Nitrogen use efficiency varied significantly by nutrient management practice.

Taxon: varietye0
Treatment: nutrient management practicese0
Outcome: nitrogen use efficiencye0

Not reportedDirection

Verbatim

e0
“the nitrogen use efficiency of each variety varied significantly with nutrient management practices”
✓ located verbatim in the source · abstract, characters 417–516

Title

Productivity and nitrogen use efficiency of rice under conventional and organic nutrition

Elizabeth Jose; Soni KB; Swapna Alex; et al. Environment Conservation Journal 2023. doi:10.36953/ecj.23132599

Other claims from this paper (8)

Intervention effect Conventional management produced higher rice growth parameters and grain yield per hill.
Intervention effect Conventional management produced higher physiological and biochemical parameters in rice.
Observation Jaiva had the least nitrogen use efficiency variation across management practices, 23.8%.
Observation Jaiva grain weight per panicle was 4.57 g under conventional management.
Observation Ezhome 2 grain weight per panicle was 5.86 g under conventional management.
Observation Jaiva grain weight per panicle was 4.24 g under organic management.
Observation Ezhome 2 grain weight per panicle was 4.54 g under organic management.
Association Tillering-stage soil nitrogen content correlated positively with nitrogen use efficiency under organic management.

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