Field Methodology Explained Lucia 170608

2009 Field Methods Explained

2009 Background information
Los Santos region is characterized by its intensive coffee production strategy
High use of synthetic fertilizers, herbicides
Low diversity shade tree cover
High yield varieties
Beside this, the region has a highly unsuitable landscape for sustainable farming

Tarrazu coffee characteristics Fig. 1: Comparison of the green coffee production (kg/ha) of different Latin American countries. Fig. 2: Trends of coffee yields in Costa Rica. Yield was estimated using the average of the 5 coffee growing regions in Costa Rica

2009
In 15 Sampling sites erosion was found to be (Mata & Ramírez, 2000)
None: 2
little: 1
Moderate: 5
Severe: 6

Effects of management in coffee production R 2 = 0.43; p = 0.03

Effects of management in coffee production: fertilizers

Effects of management in coffee production: fertilizers (2) R 2 = 0.64; p = 0.001

Effects of management in coffee production: fertilizers (3)

Shade tree Ground cover Coffee Health/vigor Productivity Quality Farmer investment Biodiversity and abundance Erosion and water run off Soil Landscape composition, features, altitude (GIS) Micro-climate Fertilizer and liming

Managing Ecosystems (1) Farm (sub) Watershed Landscape

2009 What are we looking at:
Relationship between landscape characteristics, ecosystems, and coffee production
Relationship between site characteristics and coffee production
Effect of farming practices on coffee production

HF/HH LF/HH LF/LH HF/LH Organic Intensification 2009

Spatial Analysis through GIS

Farmer log keeping Log book keeping

“ Sampling plots”
Plot studied 2007-2009
Control
Treatment
Field Work!

2009 The transect
Data of coffee production by plants
Soil nutrient and soil organic matter
samples
Arthropod diversity
Ground cover structure

2009 10m 10m

2009 Orthotropic axle Prunned axles The coffee plant
In 10 plants per transect:
Measure diameter at 10 cm from
the ground
Count the number of orthotropic
axle
Count number of orthotropic axles prunned
Count the number of berries on 5 branches

2009 coffee beans nodes branches leaves

2009 Orthotropic axle Soils
Drill using the soil auger 15 spots 20cm away from the base of a coffee plant
Combine this samples in a bag to create a compound sample

2009 Ground cover
2m from the center of transect, following the four cardinal directions (NESW), locate the metal frame of 1x1m
Write down the percentage of area under the following ground covers: live, mulch, and not cover
(bare soil)

2009 Thank you!

Field Methodology Explained Lucia 170608

by Matthew Farber on Aug 17, 2009

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