Intervention effectmodel-written summary

At nine sites with 40 kg N/ha lower rates, individual analyses found no significant treatment effect on profitability.

A claim from An economic evaluation of controlled release and nitrification inhibiting fertilisers in the Burdekin · 2017

Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Taxon: sugarcanet0
Treatment: rates 40 kg N/ha lowere0
Outcome: farmer profitabilitye1
Comparator: conventional ratee0

Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingDirectionValueQualifier

Verbatim

e0
“For the nine sites that tested rates 40 kg N/ha lower than a conventional rate, analyses of variance were completed for each individual trial site but none identified a significant treatment effect”
✓ located verbatim in the source · abstract, characters 920–1117

e1
“farmer profitability”
✓ located verbatim in the source · abstract, characters 539–559

t0
“sugarcane under certain soil and climatic conditions”
✓ located verbatim in the source · abstract, characters 130–182

Title

An economic evaluation of controlled release and nitrification inhibiting fertilisers in the Burdekin

Mark S. Thompson; J. Dowie; C. Wright; et al. Queensland Department of Agriculture and Fisheries archive of scientific and research publications (Queensland Department of Agriculture and Fisheries) 2017

Other claims from this paper (3)

Intervention effect The 50% controlled-release blend was significantly less profitable than all other treatments except the 25% blend.
Intervention effect At lower rates of 60 kg N/ha, treatment effects appeared at two of three individual sites.
Intervention effect Across the three sites, multi-environment analysis found no significant treatment effect.

Record rev-563045e481cd5ec4fb1d1a57222d9e322ecbf7f96d0d984600f346dad961fe27 · schema claims-v0.9 · position 1 in the model’s answer

nitrogen · yield · Saccharum officinarum (sugarcane)Results differ

137 papers: 118 positive, 19 negative or no effect

18 papers in the same direction as this claim · 118 reporting no difference from an alternative

positive
Ratoon nitrogen fertilizer nearly doubled residue nitrogen recovery by sugarcane, from 17 to 31 %.
Contribution of nitrogen from sugarcane harvest residues and urea for crop nutrition · 2013 · compared with 17
No difference from an alternative
positive
Nitrogen increased sugarcane yield in only three fields.
The Effectiveness of Three Vegetation Indices Obtained from a Canopy Sensor in Identifying Sugarcane Response to Nitrogen · 2014
No difference from an alternative
positive
Sugar yield increased linearly with nitrogen dose.
Technological quality and yield of sugarcane grown under nitrogen doses via subsurface drip fertigation · 2016
No difference from an alternative
positive
Combined farmyard manure and urea minimized cane yield reduction.
Conserving the Organic Matter Content of the Soil to Sustain Sugarcane Yield · 1992
No difference from an alternative
positive
supplemented urea-N increased cane yield by 26 to 57%.
Effects of Crotalaria and Sesbania aculeata green manures and N fertilizer on soil fertility and the productivity of sugarcane · 2003
No difference from an alternative
positive
Planting nitrogen increased plant cane yield at two of three sites.
Residual recovery and yield performance of nitrogen fertilizer applied at sugarcane planting · 2015
No difference from an alternative
positive
Higher nitrogen rates significantly increased sugarcane yield in two of three site years.
Effect of Nitrogen Rates and Application Time on Sugarcane Yield and Quality · 2013
No difference from an alternative
positive
Sugarcane yields increased linearly with nitrogen rate over four cycles.
Long-term N fertilization reduces uptake of N from fertilizer and increases the uptake of N from soil · 2020
No difference from an alternative

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.

Other papers on the same question

nitrogen · yield · Saccharum officinarum (sugarcane)Results differ