SRUC Woodlands Old Rotation

This experiment has been added by the GLTEN Curators using existing published sources.
Objective
A crop rotation trial started in 1922 at SRUC's Craibstone Campus near Aberdeen, Scotland demonstrating the influence of long term (almost 100 years) fertiliser treatments on different crops using nutrient replacement scenarios of N, P and K.
Description
Based around different N, P & K fertilizer regimes in various replacement scenarios, with a six-crop rotation with every crop grown every year. From 2021 soils archived & also moved to a new location nearby at Rowett Institute, Aberdeen Cropping Experimental (ACE) platform, the Phoenix Experiment.
Data Access Statement
Don't know
Data license
Don't know
Data policy
Don't know
Organization
People
Christine Watson
Robin Walker
SRUC Craibstone

Site: Woodlands Old Rotation

Type
research station field
Location
Craibstone
Aberdeenshire
Scotland
Geographic location
57.181393, -2.206985
© OpenStreetMap contributors
Visits permitted?
No
Management
Crops receive herbicide, fungicide and the soil is limed to pH 6 on a regular basis. Inputs to crops are typical of region. Farmyard manure to all plots applied to potatoes.
Soil description
Sandy loam, Countesswells Association, Dess Series
Soil properties
VariableDepthValue (range)UnitsRef yearEstimated?Baseline?
soil pH 6
soil organic carbon 8 Percent

Design period: Low NPK rate (1922—1990)

Design Type
Split-plot
Description
six-course rotation, roots were potatoes, swedes, turnips
Number of plots
36
Number of replicates
2
Crops
CropYears grown
grass
white clover
spring oats
potatoes
spring barley
Factors
Factor name
Factor levels
nitrogen fertilizer exposure
N 26  (26 kgN/ha)
phosphate fertilizer exposure
P39 roots  (39 kgP/ha)
rate applied to root crops
P20  (20 kgP/ha)
rate applied to cereals and hay
potassium fertilizer exposure
K62  (62 kgK/ha)
rate applied to root crops
K32
rate applied to cereals and hay
Factor combinations
1. Control
zero NPK
2. NPK (TSP)
P as triple superphosphate
3. NPK (RP)
P as rock phosphate
4. NK
5. PK (TSP)
P as triple superphosphate
6. NP (TSP)
P as triple superphosphate
Measurement
VariableMaterialUnitsFrequencyScaleComment
yield componentsNot specified

Design period: High NPK rate (1991—2021)

Design Type
Split-plot
Description
six-course rotation, roots now potatoes
Number of plots
36
Number of replicates
2
Crops
CropYears grown
grass
white clover
spring oats
potatoes
spring barley
Factors
Factor name
Factor levels
nitrogen fertilizer exposure
N80  (80 kgN/ha)
phosphate fertilizer exposure
P66  (66 kgP/ha)
rate applied to roots
P26  (26 kgP/ha)
rate applied to cereals and hay
potassium fertilizer exposure
K83  (83 kgK/ha)
rate applied to roots
K58  (58 kgK/ha)
rate applied to cereals and hay
Factor combinations
1. Control
2. NPK (TSP)
P as triple superphosphate
3. NPK (RP)
P as rock phosphate
4. NK
5. PK (TSP)
P as triple superphosphate
6. NP (TSP)
P as triple superphosphate
Measurement
VariableMaterialUnitsFrequencyScaleComment
yield componentsNot specified

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