SOIL 4213 BIOEN 4213
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SOIL 4213 SOIL 4213 BIOEN 4213 BIOEN 4213 Oklahoma State University Oklahoma State University Grid Sampling, and Grid Sampling, and the the Future of Soil Future of Soil Sampling Sampling
description
SOIL 4213 BIOEN 4213. Grid Sampling, and the Future of Soil Sampling. Oklahoma State University. 490ft 2 43560ft 2. = 0.01. 1 Acre Grid, 16 Acres. xxxx xxxx xxxx xxxx. Forage yieldNDVIMehlichIII P. 70 60 50 40 30 20 10. 70 60 50 40 30 20 10. 70 60 50 40 - PowerPoint PPT Presentation
Transcript of SOIL 4213 BIOEN 4213
SOIL 4213SOIL 4213BIOEN 4213BIOEN 4213
SOIL 4213SOIL 4213BIOEN 4213BIOEN 4213
Oklahoma State UniversityOklahoma State UniversityOklahoma State UniversityOklahoma State University
Grid Sampling, and the Grid Sampling, and the Future of Soil SamplingFuture of Soil Sampling
1 Acre Grid, 16 Acres1 Acre Grid, 16 Acres490ft2
43560ft2
490ft2
43560ft2= 0.01= 0.01
x x x x
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Forage yieldForage yield NDVINDVI MehlichIII PMehlichIII P
Distance, ftDistance, ft Distance, ftDistance, ft Distance, ftDistance, ft
Dis
tan
ce,
ftD
ista
nce
, ft
Dis
tan
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ista
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, ft
Dis
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ista
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, ft
7070
6060
5050
4040
3030
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1010
7070
6060
5050
4040
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2020
1010
7070
6060
5050
4040
3030
2020
1010
1 3 5 1 3 5 77
1 3 5 1 3 5 77
1 3 5 1 3 5 77
ppmppm5656
4949
4242
3535
2828
2121
1414
77
00
0.840.84
0.780.78
0.720.72
0.660.66
0.600.60
0.540.54
0.480.48
0.420.42
0.360.36
0.300.30
lb/aclb/ac84008400
72007200
60006000
48004800
36003600
24002400
12001200
00
Grid: 1 acre, 43560ft2 (1) 1
Yield Monitor: 900 ft2 (0.02) x48
Resolution Study: 490ft2 (0.01) x89
OSU-VRT: 10ft2 (0.0002) x4356
Grid: 1 acre, 43560ft2 (1) 1
Yield Monitor: 900 ft2 (0.02) x48
Resolution Study: 490ft2 (0.01) x89
OSU-VRT: 10ft2 (0.0002) x4356
SOIL SAMPLING….SOIL SAMPLING….RESOLUTION?RESOLUTION?
43560 ft243560 ft2
900 ft2900 ft2
9 ft29 ft2
48.448.4
100100
x 4840 x 4840
Grid Based$1600Grid Based$1600
Map Based$77,440Map Based$77,440
Sensor Based$7,744,000Sensor Based$7,744,000
160 acre field ($10/soil sample)160 acre field ($10/soil sample)
1 Acre1 Acre
Mean surface soil test P and fertilizer P recommendations, bemudagrass pasture, Burneyville, OK Mean surface soil test P and fertilizer P recommendations, bemudagrass pasture, Burneyville, OK
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00 22 44 66 88 1010 1212 1414 1616 1818 2020 2222DISTANCE, mDISTANCE, m
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Mehlich IIIMehlich III
P FertilizerP Fertilizer
Mean surface soil test NH4-N + NO3-N and fertilizer N Mean surface soil test NH4-N + NO3-N and fertilizer N recommendations, bemudagrass pasture, Burneyville, OK recommendations, bemudagrass pasture, Burneyville, OK Mean surface soil test NH4-N + NO3-N and fertilizer N Mean surface soil test NH4-N + NO3-N and fertilizer N recommendations, bemudagrass pasture, Burneyville, OK recommendations, bemudagrass pasture, Burneyville, OK
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0000 2222 4444 6666 8888 10101010 12121212 14141414 16161616 18181818 20202020 22222222
DISTANCE, mDISTANCE, mDISTANCE, mDISTANCE, m
NH
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+ N
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gN
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H4-
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3-N
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/kg
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120120120120
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N F
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aN
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NH4-N + NO3-NNH4-N + NO3-NNH4-N + NO3-NNH4-N + NO3-N
N FertilizerN FertilizerN FertilizerN Fertilizer
‘‘Precision agriculture’ and ‘variable Precision agriculture’ and ‘variable rate’ technologies must operate at the rate’ technologies must operate at the resolution where real differences are resolution where real differences are encountered in the field.encountered in the field.
‘‘Precision agriculture’ and ‘variable Precision agriculture’ and ‘variable rate’ technologies must operate at the rate’ technologies must operate at the resolution where real differences are resolution where real differences are encountered in the field.encountered in the field.
OSU Team VRTOSU Team VRT
Soil Sampling Soil Sampling as a Basis for as a Basis for Fertilizer Application, NDSU, Dave FranzenFertilizer Application, NDSU, Dave Franzen
Systematic Evaluation of Precision Farming Soil Sampling Systematic Evaluation of Precision Farming Soil Sampling RequirementsRequirements, USDA-ARS, South Dakota, USDA-ARS, South Dakota
Soil Sampling Strategies for Site Specific Management, Soil Sampling Strategies for Site Specific Management, Manitoba, CANADA (go to definition of Grid Soil Sampling)Manitoba, CANADA (go to definition of Grid Soil Sampling)
University of Georgia (NESPAL)University of Georgia (NESPAL)
TEMPORAL VARIABILITY (South Carolina)TEMPORAL VARIABILITY (South Carolina)
GRID SOIL SAMPLING (SOIL DOCTOR) last graph = GRID SOIL SAMPLING (SOIL DOCTOR) last graph = every 6 square feetevery 6 square feet
http://www.cropquest.comhttp://www.cropquest.com
Management Zones (PIONEER), Tom DoergeManagement Zones (PIONEER), Tom Doerge
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Class Presentations (turn in title by February 23)Class Presentations (turn in title by February 23)
Netscape Navigator (hyperlinks are dead)Netscape Navigator (hyperlinks are dead)
Make – up lecture…….Make – up lecture…….
005 Computer Lab, Will Answer questions 2:30-3:20005 Computer Lab, Will Answer questions 2:30-3:20
Spatial VariabilitySpatial Variability
National Geographic 1996Southern Russia
National Geographic 1996Southern Russia
OklahomaOklahoma
OklahomaOklahoma
OklahomaOklahoma
EnglandEngland
00 55 1010 1515 2020 2525 3030 3535 404000
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4545½ FRFR11 CC11FRFR11 VRVR11
½ FRFR22CC22 FRFR22VRVR22
Bermudagrass,Bermudagrass,Burneyville, OKBurneyville, OKPrefertilizationPrefertilization
May 28 May 28
Bermudagrass,Bermudagrass,Burneyville, OKBurneyville, OKPrefertilizationPrefertilization
May 28 May 28
Distance, mDistance, mDistance, mDistance, m
Dis
tanc
e, m
Dis
tanc
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Dis
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e, m
Dis
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4545½ FRFR11½ FRFR11 CC11CC11FRFR11FRFR11 VRVR11VRVR11 ½ FRFR22
½ FRFR22CC22CC22 FRFR22FRFR22VRVR22VRVR22
Bermudagrass,Bermudagrass,Burneyville, OKBurneyville, OK
First harvest First harvest following fertilizationfollowing fertilization
June 27June 27
Bermudagrass,Bermudagrass,Burneyville, OKBurneyville, OK
First harvest First harvest following fertilizationfollowing fertilization
June 27June 27
Distance, mDistance, mDistance, mDistance, m
Dis
tanc
e, m
Dis
tanc
e, m
Dis
tanc
e, m
Dis
tanc
e, m
120’120’120’120’
130’130’130’130’
1.331.33
PNSIPNSI
1.121.12
1.331.33
PNSIPNSI
1.121.12
0N,0P0N,0P0N,0P0N,0P 100N, 120P100N, 120P100N, 120P100N, 120P
Hasil SembiringOSU Soil FertilityHasil SembiringOSU Soil Fertility
Variable N Rate:Variable N Rate: 36.3 lb N/ac36.3 lb N/acFixed N Rate:Fixed N Rate: 80.0 lb N/ac80.0 lb N/ac
43.7 lb N/ac43.7 lb N/ac
Variable N Rate:Variable N Rate: 36.3 lb N/ac36.3 lb N/acFixed N Rate:Fixed N Rate: 80.0 lb N/ac80.0 lb N/ac
43.7 lb N/ac43.7 lb N/ac
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2525 5050 7575 100 100 125 125 150 150 175 175 200 200 225 225 250 250 2525 5050 7575 100 100 125 125 150 150 175 175 200 200 225 225 250 250
Distance, ftDistance, ftDistance, ftDistance, ft
44141424243434444454546464
44141424243434444454546464
N Fertilization Rate, lb/acN Fertilization Rate, lb/ac
Organic MatterRange:1.6-3.5Organic MatterRange:1.6-3.5
Resolution of Soil Fertility VariablesResolution of Soil Fertility Variables
