Intervention effectmodel-written summary

Fertilizer N decreased soybean yield in two of seven years.

A claim from Crop Rotation Affects Corn, Grain Sorghum, and Soybean Yields and Nitrogen Recovery · 2016

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Fertilizer N decreased soybean yield in two of seven years.

Taxon
soybeanGlycine maxe0
Treatment
Fertilizer N additione0
Outcome
soybean grain yielde0
Direction
decreasede0
Qualifier
2 of 7 yre0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingValue

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Fertilizer N addition decreased soybean grain yield in 2 of 7 yr”

✓ located verbatim in the source · abstract, characters 1196–1260

Title

Crop Rotation Affects Corn, Grain Sorghum, and Soybean Yields and Nitrogen Recovery

Aaron J. Sindelar; Marty R. Schmer; Virginia L. Jin; et al. Agronomy Journal 2016. doi:10.2134/agronj2016.01.0005

Other claims from this paper (7)

Record rev-792a0bf8d2cf2b4680dd549b412536c9964a728065a327752bab593a622e872d · schema claims-v0.9 · position 7 in the model’s answer

nitrogen · yield · Glycine max (soybean)Positive and negative results

416 papers: 318 positive, 98 negative or no effect

97 papers in the same direction as this claim · 318 in the opposite direction

  1. positive
    Late-season N significantly increased soybean yield at six of eight sites by an average 6.9 bu/acre or 11.8 %.

    Effects of Late‐Season Nitrogen Fertilizer on Irrigated Soybean Yield And Composition · 1998

    Opposite directionCited by this paper

  2. positive
    Applying 16 kg N ha-1 as starter N increased soybean yield by 6% on average over three years.

    Starter Nitrogen Fertilizer Impact on Soybean Yield and Quality in the Northern Great Plains · 2006 · compared with no N treatment

    Opposite directionCited by this paper

  3. positive
    Polymer-coated urea increased soybean seed yield by less than 0.06 Mg ha-1 in the combined analysis

    In‐Season Fertilizer Nitrogen Applications for Soybean in Minnesota · 2001

    Opposite directionCited by this paper

  4. positive
    Nitrogen application increased MG III seed mass by 11% across release years.

    Genetic Gain × Management Interactions in Soybean: II. Nitrogen Utilization · 2013

    Opposite directionCited by this paper

  5. no effect
    Applied nitrogen did not significantly affect grain yield; the observed increase was 39 kg ha−1.

    Nitrogen Application to Soybean at Early Reproductive Development · 2005 · compared with no‐N control

    Same directionCited by this paper

  6. no effect
    N did not significantly affect seed yield, maturity or lodging, averaged over cultivars and environments

    Response of Dryland Soybeans to Nitrogen in Full‐Season and Doublecrop Systems · 1992

    Same directionCited by this paper

  7. positive
    Drought-tolerant nitrogen fixation provided the greatest benefit, raising yield in more than 85% of years at nearly all locations.

    Assessment across the United States of the Benefits of Altered Soybean Drought Traits · 2010 · compared with all traits

    Opposite direction

  8. positive
    Root interaction and increasing nitrogen application improved soybean yield and its components

    Effects of root interaction and nitrogen fertilization on the chlorophyll content, root activity, photosynthetic characteristics of intercropped soybean and microbial quantity in the rhizosphere · 2013

    Opposite direction

407 papers more in this group

See all 416 papers →

fertilization · yield · Glycine max (soybean)Positive and negative results

1,192 papers: 1,021 positive, 171 negative or no effect

170 papers in the same direction as this claim · 1,021 in the opposite direction

  1. positive
    N fertilizer had a positive effect on soybean yield and yield components in both years.

    Soybean profitability and yield component response to nitrogen fertilizer in Iowa · 2020

    Opposite directionCites this paper

  2. no effect
    Fertilizer N treatments did not change soybean seed yield at any of the 12 sites

    In‐Season Fertilizer Nitrogen Applications for Soybean in Minnesota · 2001 · compared with unfertilized control plots

    Same directionCited by this paper

  3. positive
    Nutrient treatments influenced LER, RCC and monetary advantage index, highest under N-P-K plus farmyard manure

    Interspecific Interaction and Nutrient Use in Soybean/Sorghum Intercropping System · 2006 · compared with control

    Opposite direction

  4. positive
    Phosphate fertilization increased soybean yield.

    Influence of increasing soil phosphorus levels on interactions between vesicular–arbuscular mycorrhizae and Rhizobium in soybeans · 1980

    Opposite direction

  5. positive
    Straw mulch with nitrogen fertilizer increased soybean grain yield by 75% compared with the control.

    Integrated use of straw mulch with nitrogen fertilizer improves soil functionality and soybean production · 2019 · compared with control treatment

    Opposite direction

  6. positive
    Combined inoculant and phosphorus increased biomass production relative to single inputs.

    Yield and economic benefits of common bean (Phaseolus vulgaris) and soybean (Glycine max) inoculation in northern Tanzania · 2006 · compared with single use of N and P or (brady)rhizobial strains

    Opposite direction

  7. positive
    Nitrogen fertilization increased non-nodulating-isoline seed yield.

    Utilization of 15N Fertilizer by Nodulating and Non‐Nodulating Soybean Isolines1 · 1979

    Opposite direction

  8. positive
    One percent biochar with 150 kg ha−1 fertilizer increased Tiefeng 3 yield by more than 23% over fertilizer alone.

    Effect of biochar on grain yield and leaf photosynthetic physiology of soybean cultivars with different phosphorus efficiencies · 2019 · compared with application of 150 kg ha−1 fertilizer alone

    Opposite direction

1,183 papers more in this group

See all 1,192 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.