Intervention effectmodel-written summary

supplemented urea-N increased cane yield by 26 to 57%.

A claim from Effects of Crotalaria and Sesbania aculeata green manures and N fertilizer on soil fertility and the productivity of sugarcane · 2003

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

supplemented urea-N increased cane yield by 26 to 57%.

Taxon
sugarcanet0
Treatment
supplemented urea-Ne0
Outcome
cane yielde0
Direction
increasede0
Value
26 to 57%e0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingQualifier

Verbatim

e0

“The green manures and the supplemented urea-N increased cane yield by 2 to 26% and 26 to 57%, respectively.”

✓ located verbatim in the source · abstract, characters 403–510
t0

“productivity of sugarcane”

✓ located verbatim in the source · title, characters 101–126

Title

Effects of Crotalaria and Sesbania aculeata green manures and N fertilizer on soil fertility and the productivity of sugarcane

S. M. BOKHTIAR; M. A. GAFUR; A. B. M. M. RAHMAN The Journal of Agricultural Science 2003. doi:10.1017/s0021859603003022

Other claims from this paper (3)

Record rev-ebebc76c9ab56a53148957d37a358c797fb1afbae6b528e488da90e9587b5718 · schema claims-v0.9 · position 3 in the model’s answer

nitrogen · yield · Saccharum officinarum (sugarcane)Results differ

137 papers: 118 positive, 19 negative or no effect

117 papers in the same direction as this claim · 15 in the opposite direction · 4 reporting no difference from an alternative

  1. no effect
    Drip-applied nitrogen yielded not significantly different sugarcane yields from sidedress application.

    Sugarcane Responses to Irrigation and Nitrogen in Semiarid South Texas · 2008 · compared with sidedress application

    Opposite direction

  2. negative
    Excess nitrogen lowered sugarcane yield.

    Different Amounts of Nitrogen Fertilizer Applications Alter the Bacterial Diversity and Community Structure in the Rhizosphere Soil of Sugarcane · 2021

    Opposite direction

  3. negative
    Reducing nitrogen from 120 to 80 kg N ha−1 had limited potential to lower yield by about 1%.

    Effect of previous soil management on sugarcane response to nitrogen fertilization · 2018

    Opposite direction

  4. negative
    Nitrogen above the yield optimum lowered sugar yields.

    Growth and yield responses to amending the sugarcane monoculture: interactions between break history and nitrogen fertiliser · 2014

    Opposite direction

  5. negative
    Urea applied on the surface gave significantly lower cane and sucrose yields than ammonium sulphate and sulphur-coated urea on a calcareous soil.

    Comparison of sulphur-coated urea and ammonium sulphate amended with N-Serve as sources of nitrogen for sugarcane · 1975 · compared with AS and SCU

    Opposite direction

  6. no effect
    Urea formulation did not affect sugarcane yield at the same nitrogen application rate.

    Effects of urea formulation on sugarcane yield, nitrogen uptake and nitrous oxide emission in tropical Queensland. · 2014

    Opposite direction

  7. no effect
    Nitrogen doses did not affect sugarcane stalk yield.

    Stalk yield and nitrogen (15N) recovery of irrigated sugarcane during the plant-cane cycle using urea · 2017

    Opposite direction

  8. no effect
    Low nitrogen doses in three or four applications did not reduce sugarcane production.

    NITROGEN MANAGEMENT IN SUGARCANE AND ITS INFLUENCE ON YIELD, PROFITABILITY AND LEACHING LOSSES · 2011

    Opposite direction

128 papers more in this group

See all 137 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.