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Baseline Soil and Water Characterization at Guyana Irrigation Research Sites
Authors: Larissa Jarvis1, Dr. O. Homenauth2, Raffaella M. P. de Carvalho1, Dr. Chandra Madramootoo 1Faculty of Agricultural and Environmental Sciences, McGill University 2NAREI, Guyana
CIFSF CARICOM PROJECT - DISSEMINATION WORKSHOP
March 05, 2013, Trinidad and Tobago
Background of research areas
Environmental sampling
# of samples
Laboratorial analysis
Results
Final considerations
Outline
Background – Site location
Drip irrigation projects in Guyana
Region 3 – Parika
Region 6 – Black Bush Polder
10 farmers installed the drip-irrigation system
Total irrigated area: 1.65 ha
0.85 ha in Parika and 0.80 ha in Black Bush Polder – 0.80 ha
Research sites
Soil and Water Resources - Parika
Soil type
Brickery Clay or Mara Clay
Water resources
Boerasirie water conservancy
Soil and Water Resources - BBP
Soil type
Skeldon or Corentyne Clay
Water resources
Canje river
Black Bush Main canal
Soil
Composite samples, 0-15 cm and 15-30 cm depths
Core samples for bulk density
Water
To date: 4 samples/project site
Sampling
Sampling Region # water samples # soil samples Analysis
Black Bush Polder (total of 5 sites)
5 samples – May 14 composite samples
Chemical and Physical analysis
5 samples – June
24 Pressure plate samples
4 Samples - August
28 Bulk density
5 Samples - December
12 Soil moisture
Parika (total of 5 sites)
5 samples – May 15 composite samples
Chemical and Physical analysis
5 samples – June 25 Pressure plate samples
5 Samples - August 26 Bulk density
5 Samples - December 9 Soil moisture
TOTAL 39 153
Soil samples
BD, OM and Soil moisture – NAREI
Particle size, Pressure plate, Pesticides – Dean Madramootoo’s Soil Plant Water Dynamics Lab, McGill University
pH, TN, TP, TS in water extract, Ca, Mg, Na, K, Al, Cu, Mn, Zn - GUYSUCO
Water samples
pH and EC - NAREI
TN, P and TDS - GUYSUCO.
Laboratory analysis
Results
Results Soils - Parika
0
1000
2000
3000
4000
5000
6000
7000
8000
Total N mg/Kg
mg
/Kg
Total N - Parika
Site 1 0-15 Site 1 15-30 Site 2 0-15 Site 2 15-30 Site 3 0-15
Site 3 15-30 Site 4 0-15 Site 4 15-30 Site 5 0-15 Site 5 15-30
0
20
40
60
80
100
Bray P
mg
/kg
P - Parika
Site 1 0-15 Site 1 15-30 Site 2 0-15 Site 2 15-30 Site 3 0-15
Site 3 15-30 Site 4 0-15 Site 4 15-30 Site 5 0-15 Site 5 15-30
0
50
100
150
200
250
300
K mg/Kg
mg
/Kg
K - Parika
Site 1 0-15 Site 1 15-30 Site 2 0-15 Site 2 15-30 Site 3 0-15
Site 3 15-30 Site 4 0-15 Site 4 15-30 Site 5 0-15 Site 5 15-30
0
20
40
60
80
Al mg/Kg
mg
/Kg
Al - Parika
Site 1 0-15 Site 1 15-30 Site 2 0-15 Site 2 15-30 Site 3 0-15
Site 3 15-30 Site 4 0-15 Site 4 15-30 Site 5 0-15 Site 5 15-30
Pesticides: for all parameters analysed, the values were bellow EPA standards – 0,03 μg/g
Results Water - Parika
0
1
2
3
4
5
6
7
pH
pH
pH - Water - Parika
Site 1 Site 2 Site 3 Site 4 Site 5
0
5
10
15
20
25
30
35
Site 1 Site 2 Site 3 Site 4 Site 5
mg
/L
N and P - Water Parika
N P
Results – Soils - BBP
0
1000
2000
3000
4000
5000
6000
7000
8000
Total N
mg
/Kg
Total N - BBP
Site 1 0-15 Site 1 15-30 Site 2 0-15 Site 2 15-30
Site 3 0-15 Site 3 15-30 Site 4 0-15 Site 4 15-30
0.00
20.00
40.00
60.00
80.00
Al mg/Kg
mg
/Kg
Al - BBP
Site 1 0-15 Site 1 15-30 Site 2 0-15 Site 2 15-30 Site 3 0-15
Site 3 15-30 Site 4 0-15 Site 4 15-30 Site 5 0-15 Site 5 15-30
0
20
40
60
80
100
Bray P
mg
/Kg
P - BBP
Site 1 0-15 Site 1 15-30 Site 2 0-15 Site 2 15-30
Site 3 0-15 Site 3 15-30 Site 4 0-15 Site 4 15-30
Pesticides: for all parameters analysed, the values were bellow EPA standards – 0,03 μg/g
Results - Water
0
1
2
3
4
5
6
7
pH
pH
pH – Water - BBP
Site 1 Site 2 Site 3 Site 4
0
5
10
15
20
25
30
35
Site 1 Site 2 Site 3 Site 4
mg
/Kg
N and P - Water - BBP
N P
Soils Parika
Nature of soils (peat soils) Fertilizers/Liming
Black Bush Polder Nature of soils (heavy clay) Fertilizers/liming
Water – excellent quality Both Soil and Water did not present environmental issues
Environmental sampling and monitoring will be contucted in 2013/14.
Final considerations
Thanks for your
attention
References 1. Ayers, R.S. & D.W. Westcot (1985), Water Quality for Agriculture, FAO Irrigation and Drainage
Paper, Food and Agriculture Organization of the United Nations (FAO): Rome, Italy. 1. Environmental Protection Agency (EPA) (2012), USA Environmental Guidelines & Standards, in
Environmental Data Management Software (ESdat), in http://www.esdat.net/Environmental_Standards.aspx accessed in February, 20th 2013.
2. Homenauth, O.(2007), Agricultural Water Management Institutions--‐Guyana, National Agricultural Research and Extension Institute, Mon Repos, Guyana.
3. Jones, J. B. Jr. (2003), Agronomic handbook: management of crops, soils, and their fertility, 630 pp. CRC Press, Taylor & Francis Group, Boca Raton, Florida.
4. Juo, A. S. R., and K. Franzluebbers (2003), Tropical Soils: Properties and Management for Sustainable Agriculture, 281 pp., Oxford University Press, New York, New York.
5. Mott Macdonald (2003), Feasibility Study of Principle Areas-MAIN REPORT, Guyana Drainage and Irrigation Systems Rehabilitation Project, Mott MacDonald, Georgetown, Guyana.
6. Tan, K. H. (2009), Environnemental Soil Science, 3 ed., 557 pp., CRC Press, Taylor & Francis Group, Boca Raton, Florida.
7. Mott Macdonald (2003), Feasibility Study of Principle Areas-MAIN REPORT, Guyana Drainage and Irrigation Systems Rehabilitation Project, Mott MacDonald, Georgetown, Guyana.