BT1 Long-term Sugarcane Trial

This experiment has been added by the GLTEN Curators using existing published sources.
Local identifier
BT1
Years operational
1939—
Objective
To study residue management and fertiliser applications
Description
The BT1 trial is the world's oldest long-term sugarcane trial
Data Access Statement
Don't know
Data license
Don't know
Data policy
Don't know
Organization
South Africa Sugar Cane Research Institute
research organisation
People

Site: BT1 site

Type
research station field
Location
Blackburn
Durban
South Africa
Geographic location
-29.703174, 31.044104
© OpenStreetMap contributors
Elevation
99 Metres
Slope
15° (SW facing)
Visits permitted?
No
Soil type
vertisol
Soil properties
VariableDepthValue (range)UnitsRef yearEstimated?Baseline?
soil pH (4.2 – 5.7)
Climate properties
VariableTime periodValue (range)Units
precipitation950 millimeter
air temperature20.4 degree Celsius

Design period: (1939—)

Description
The trial was initially harvested at 24 months of age up to 1966, after which harvesting was changed to between 15 and 20 months. Since 1987 the trial has been harvested annually in spring.
Design description
The complete trial is composed of 32 plots divided in 4 columns and 8 rows. Plots measure 18 x 9.6m.
Number of plots
32
Number of replicates
4
Crops
CropYears grown
sugarcane
maize
Factors
Factor name
Factor levels
crop residue management process
burning and tops retained
Burned at harvest with unburned tops scattered evenly over the soil surface.
burning and tops removed
Burned at harvest with unburned tops removed.
trashing and residues retained
Unburned at harvest with the residue retained on the soil surface to provide a mulch cover.
NPK fertilizer exposure
With fertilizer
Without fertilizer
maize intercropping
With and without maize intercropping used between 1939 and 1948.
Measurements
VariableMaterialUnitsFrequencyScaleComment
yield traitsugarcane
soil propertiesSoil

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