- Vol 107, No 9 (2014)
- Pages: 1431-1439
- Published: 2014-11-10
- https://doi.org/10.18520/cs%2Fv107%2Fi9%2F1431-1439
Open Access
Subscription Access
Pedotransfer Functions: A Tool for Estimating Hydraulic Properties of Two Major Soil Types of India
P. Tiwary
1,
N. G. Patil
1,
T. Bhattacharyya
1,
P. Chandran
1,
S. K. Ray
1,
K. Karthikeyan
1,
D. Sarkar
1,
D. K. Pal
2,
J. Prasad
1,
C. Mandal
1,
D. K. Mandal
1,
G. S. Sidhu
3,
K. M. Nair
4,
A. K. Sahoo
5,
T. H. Das
5,
R. S. Singh
6,
R. Srivastava
1,
T. K. Sen
1,
S. Chatterji
1,
G. P. Obireddy
1,
S. K. Mahapatra
3,
K. S. Anil Kumar
4,
K. Das
5,
A. K. Singh
6,
S. K. Reza
7,
D. Dutta
5,
S. Srinivas
4,
M. V. Venugopalan
8,
K. Velmourougane
8,
A. Srivastava
9,
M. Raychaudhuri
10,
D. K. Kundu
10,
K. G. Mandal
10,
G. Kar
10,
S. L. Durge
1,
G. K. Kamble
1,
M. S. Gaikwad
1,
A. M. Nimkar
1,
S. V. Bobade
1,
S. G. Anantwar
1,
S. Patil
1,
K. M. Gaikwad
1,
V. T. Sahu
1,
H. Bhondwe
1,
S. S. Dohtre
1,
S. Gharami
1,
S. G. Khapekar
1,
A. Koyal
4,
K. Sujatha
4,
B. M. N. Reddy
4,
P. Sreekumar
4,
D. P. Dutta
7,
L. Gogoi
7,
V. N. Parhad
1,
A. S. Halder
5,
R. Basu
5,
R. Singh
6,
B. L. Jat
6,
D. L. Oad
6,
N. R. Ola
6,
K. Wadhai
1,
M. Lokhande
1,
V. T. Dongare
1,
A. Hukare
1,
N. Bansod
1,
A. H. Kolhe
1,
J. Khuspure
1,
H. Kuchankar
1,
D. Balbuddhe
1,
S. Sheikh
1,
B. P. Sunitha
4,
B. Mohanty
3,
D. Hazarika
7,
S. Majumdar
5,
R. S. Garhwal
6,
A. Sahu
8,
S. Mahapatra
10,
S. Puspamitra
10,
A. Kumar
9,
N. Gautam
1,
B. A. Telpande
1,
A. M. Nimje
1,
C. Likhar
1,
S. Thakre
1
Affiliations
1 Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
2 International Crops Research Institute for the Semi-Arid Tropics, Patancheru 502 324, India
3 Regional Centre, National Bureau of Soil Survey and Land Use Planning, New Delhi 110 012, India
4 Regional Centre, National Bureau of Soil Survey and Land Use Planning, Bangalore 560 024, India
5 Regional Centre, National Bureau of Soil Survey and Land Use Planning, Kolkata 700 091, India
6 Regional Centre, National Bureau of Soil Survey and Land Use Planning, Udaipur 313 001, India
7 Regional Centre, National Bureau of Soil Survey and Land Use Planning, Jorhat 785 004, India
8 Central Institute for Cotton Research, Nagpur 440 010, India
9 National Bureau of Agriculturally Important Microorganisms, Mau 275 101, India
10 Directorate of Water Management, Bhubaneswar 751 023, India
1 Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
2 International Crops Research Institute for the Semi-Arid Tropics, Patancheru 502 324, India
3 Regional Centre, National Bureau of Soil Survey and Land Use Planning, New Delhi 110 012, India
4 Regional Centre, National Bureau of Soil Survey and Land Use Planning, Bangalore 560 024, India
5 Regional Centre, National Bureau of Soil Survey and Land Use Planning, Kolkata 700 091, India
6 Regional Centre, National Bureau of Soil Survey and Land Use Planning, Udaipur 313 001, India
7 Regional Centre, National Bureau of Soil Survey and Land Use Planning, Jorhat 785 004, India
8 Central Institute for Cotton Research, Nagpur 440 010, India
9 National Bureau of Agriculturally Important Microorganisms, Mau 275 101, India
10 Directorate of Water Management, Bhubaneswar 751 023, India
In recent years, georeferenced soil information system has gained significance in agricultural land-use planning and monitoring the changes in soil properties/ soil quality induced by land-use changes. The spatiotemporal information on saturated hydraulic conductivity (sHC) and soil water retention-release behaviour is essential for proper crop and land-use planning. The sHC greatly influences the drainage process and soil water retention-release behaviour, ultimately affecting the crop growth and yield. However, sHC and water retention are not measured in a routine soil survey and are generally estimated from easily measurable soil parameters through pedotransfer functions (PTFs). In the present study, PTFs for sHC and water retention were developed separately for the soils of two food-growing zones of India (the Indo-Gangetic Plains (IGP) and the black soil region (BSR)). For the IGP soils, sHC is affected by the increased subsoil bulk density due to intensive cultivation. In BSR, presence of Na+ and Mg++ ions affects the drainage and water retention of the soils. Therefore, these soil parameters were considered while developing the PTFs using stepwise regression technique in SPSS. The validation of PTFs was found to be satisfactory with low RMSE values and high model efficiency.
Keywords
Model Efficiency, Pedotransfer Functions, Regression Analysis, Saturated Hydraulic Conductivity, Water Retention.
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Abstract Views: 263
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- Pedotransfer Functions: A Tool for Estimating Hydraulic Properties of Two Major Soil Types of India
Abstract Views: 263 |
PDF Views: 119
In recent years, georeferenced soil information system has gained significance in agricultural land-use planning and monitoring the changes in soil properties/ soil quality induced by land-use changes. The spatiotemporal information on saturated hydraulic conductivity (sHC) and soil water retention-release behaviour is essential for proper crop and land-use planning. The sHC greatly influences the drainage process and soil water retention-release behaviour, ultimately affecting the crop growth and yield. However, sHC and water retention are not measured in a routine soil survey and are generally estimated from easily measurable soil parameters through pedotransfer functions (PTFs). In the present study, PTFs for sHC and water retention were developed separately for the soils of two food-growing zones of India (the Indo-Gangetic Plains (IGP) and the black soil region (BSR)). For the IGP soils, sHC is affected by the increased subsoil bulk density due to intensive cultivation. In BSR, presence of Na+ and Mg++ ions affects the drainage and water retention of the soils. Therefore, these soil parameters were considered while developing the PTFs using stepwise regression technique in SPSS. The validation of PTFs was found to be satisfactory with low RMSE values and high model efficiency.
DOI: https://doi.org/10.18520/cs%2Fv107%2Fi9%2F1431-1439
Authors
P. Tiwary
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
N. G. Patil
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
T. Bhattacharyya
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
P. Chandran
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
S. K. Ray
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
K. Karthikeyan
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
D. Sarkar
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
D. K. Pal
International Crops Research Institute for the Semi-Arid Tropics, Patancheru 502 324, India
International Crops Research Institute for the Semi-Arid Tropics, Patancheru 502 324, India
J. Prasad
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
C. Mandal
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
D. K. Mandal
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
G. S. Sidhu
Regional Centre, National Bureau of Soil Survey and Land Use Planning, New Delhi 110 012, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, New Delhi 110 012, India
K. M. Nair
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Bangalore 560 024, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Bangalore 560 024, India
A. K. Sahoo
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Kolkata 700 091, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Kolkata 700 091, India
T. H. Das
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Kolkata 700 091, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Kolkata 700 091, India
R. S. Singh
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Udaipur 313 001, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Udaipur 313 001, India
R. Srivastava
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
T. K. Sen
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
S. Chatterji
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
G. P. Obireddy
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
S. K. Mahapatra
Regional Centre, National Bureau of Soil Survey and Land Use Planning, New Delhi 110 012, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, New Delhi 110 012, India
K. S. Anil Kumar
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Bangalore 560 024, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Bangalore 560 024, India
K. Das
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Kolkata 700 091, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Kolkata 700 091, India
A. K. Singh
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Udaipur 313 001, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Udaipur 313 001, India
S. K. Reza
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Jorhat 785 004, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Jorhat 785 004, India
D. Dutta
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Kolkata 700 091, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Kolkata 700 091, India
S. Srinivas
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Bangalore 560 024, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Bangalore 560 024, India
M. V. Venugopalan
Central Institute for Cotton Research, Nagpur 440 010, India
Central Institute for Cotton Research, Nagpur 440 010, India
K. Velmourougane
Central Institute for Cotton Research, Nagpur 440 010, India
Central Institute for Cotton Research, Nagpur 440 010, India
A. Srivastava
National Bureau of Agriculturally Important Microorganisms, Mau 275 101, India
National Bureau of Agriculturally Important Microorganisms, Mau 275 101, India
M. Raychaudhuri
Directorate of Water Management, Bhubaneswar 751 023, India
Directorate of Water Management, Bhubaneswar 751 023, India
D. K. Kundu
Directorate of Water Management, Bhubaneswar 751 023, India
Directorate of Water Management, Bhubaneswar 751 023, India
K. G. Mandal
Directorate of Water Management, Bhubaneswar 751 023, India
Directorate of Water Management, Bhubaneswar 751 023, India
G. Kar
Directorate of Water Management, Bhubaneswar 751 023, India
Directorate of Water Management, Bhubaneswar 751 023, India
S. L. Durge
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
G. K. Kamble
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
M. S. Gaikwad
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
A. M. Nimkar
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
S. V. Bobade
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
S. G. Anantwar
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
S. Patil
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
K. M. Gaikwad
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
V. T. Sahu
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
H. Bhondwe
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
S. S. Dohtre
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
S. Gharami
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
S. G. Khapekar
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
A. Koyal
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Bangalore 560 024, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Bangalore 560 024, India
K. Sujatha
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Bangalore 560 024, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Bangalore 560 024, India
B. M. N. Reddy
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Bangalore 560 024, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Bangalore 560 024, India
P. Sreekumar
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Bangalore 560 024, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Bangalore 560 024, India
D. P. Dutta
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Jorhat 785 004, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Jorhat 785 004, India
L. Gogoi
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Jorhat 785 004, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Jorhat 785 004, India
V. N. Parhad
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
A. S. Halder
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Kolkata 700 091, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Kolkata 700 091, India
R. Basu
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Kolkata 700 091, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Kolkata 700 091, India
R. Singh
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Udaipur 313 001, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Udaipur 313 001, India
B. L. Jat
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Udaipur 313 001, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Udaipur 313 001, India
D. L. Oad
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Udaipur 313 001, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Udaipur 313 001, India
N. R. Ola
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Udaipur 313 001, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Udaipur 313 001, India
K. Wadhai
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
M. Lokhande
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
V. T. Dongare
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
A. Hukare
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
N. Bansod
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
A. H. Kolhe
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
J. Khuspure
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
H. Kuchankar
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
D. Balbuddhe
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
S. Sheikh
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
B. P. Sunitha
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Bangalore 560 024, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Bangalore 560 024, India
B. Mohanty
Regional Centre, National Bureau of Soil Survey and Land Use Planning, New Delhi 110 012, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, New Delhi 110 012, India
D. Hazarika
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Jorhat 785 004, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Jorhat 785 004, India
S. Majumdar
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Kolkata 700 091, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Kolkata 700 091, India
R. S. Garhwal
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Udaipur 313 001, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Udaipur 313 001, India
A. Sahu
Central Institute for Cotton Research, Nagpur 440 010, India
Central Institute for Cotton Research, Nagpur 440 010, India
S. Mahapatra
Directorate of Water Management, Bhubaneswar 751 023, India
Directorate of Water Management, Bhubaneswar 751 023, India
S. Puspamitra
Directorate of Water Management, Bhubaneswar 751 023, India
Directorate of Water Management, Bhubaneswar 751 023, India
A. Kumar
National Bureau of Agriculturally Important Microorganisms, Mau 275 101, India
National Bureau of Agriculturally Important Microorganisms, Mau 275 101, India
N. Gautam
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
B. A. Telpande
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
A. M. Nimje
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
C. Likhar
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
S. Thakre
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Regional Centre, National Bureau of Soil Survey and Land Use Planning, Nagpur 440 033, India
Abstract
In recent years, georeferenced soil information system has gained significance in agricultural land-use planning and monitoring the changes in soil properties/ soil quality induced by land-use changes. The spatiotemporal information on saturated hydraulic conductivity (sHC) and soil water retention-release behaviour is essential for proper crop and land-use planning. The sHC greatly influences the drainage process and soil water retention-release behaviour, ultimately affecting the crop growth and yield. However, sHC and water retention are not measured in a routine soil survey and are generally estimated from easily measurable soil parameters through pedotransfer functions (PTFs). In the present study, PTFs for sHC and water retention were developed separately for the soils of two food-growing zones of India (the Indo-Gangetic Plains (IGP) and the black soil region (BSR)). For the IGP soils, sHC is affected by the increased subsoil bulk density due to intensive cultivation. In BSR, presence of Na+ and Mg++ ions affects the drainage and water retention of the soils. Therefore, these soil parameters were considered while developing the PTFs using stepwise regression technique in SPSS. The validation of PTFs was found to be satisfactory with low RMSE values and high model efficiency.
Keywords
Model Efficiency, Pedotransfer Functions, Regression Analysis, Saturated Hydraulic Conductivity, Water Retention.
DOI: https://doi.org/10.18520/cs%2Fv107%2Fi9%2F1431-1439