Rice-Upland Crop Rotation Experiment (RUCRE)

Local identifier
Rice-Maize Experiment
Years operational
1993—
Objective
Determine the effect of crop diversification from lowland flooded rice to an upland crop on soil properties and measures of soil quality including soil organic matter, mineralization and carbon balances.
Description
The experiment is planted with both maize and rice during dry seasons, but is planted solely with rice during wet seasons.
Data Access Statement
Available to collaborators only
Data Access Notes
Data will be made available in Dataverse (in progress)
Data license
CC BY-NC
Data policy
Yes (not online)
Organization
International Rice Research Institute
research organisation
Person
Dr. Olivyn Angeles
experiment manager
International Rice Research Institute
Sustainable Impact Platform/Soil Water Environment

Site: IRRI Experiment Station

Local code
Block B2
Location
Los Banos
Laguna
Philippines
Geographic location
14.167231, 121.255344
+−
© OpenStreetMap contributors
Visits permitted?
No

Design period: (1993—)

Design Type
Split split plot
Number of plots
2
Number of subplots
6
Number of replicates
4
Number of harvests per year
2
Crops
CropYears grown
rice
maize
Crop Rotations
Rice-Rice  1993—
  • 1
    rice
    wet season (June - October)
    rice
    dry season (January - April
Rice-Maize  1993—
  • 1
    rice
    wet season (June - October)
    maize
    dry season (January - April
Factors
Factor name
Factor levels
nitrogen fertilizer exposure
Three levels: zero N, moderate, high
N1 (0N Control)
1993—
Applied to crop: All crops
From 2012, dry season crops received SSNM, wet season crops had no inputs.
N2 (Low N)
1993—2005
N3 (High N)
1993—2011
Applied to crop: All crops
N2 (SSNM)
2006—
Applied to crop: All crops
Site specific nutrient management replaced N2 (Low N). From 2012 conventional tillage in dry season.
N3 (SSNM)
2012—
Applied to crop: All crops
Site specific nutrient management replaced N2 (Low N). From 2012 no tillage in dry season.
crop residue management process
Two levels: without residue, with residue
straw left
1993—
Applied to crop: All crops
Incorporated after 2-3 weeks
straw removed
1993—
Applied to crop: All crops
tillage process
conventional tillage
2012—
Applied to crop: All crops
Applied on N1 and N2 plots in dry season
no-till
2012—
Applied to crop: All crops
Applied on N3 plots in dry season
Measurement
VariableMaterialUnitsFrequencyScaleComment
Grain yieldAll cropskg/haseason end

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