Spatial Variability of Infiltration Rate in Inceptisol and Entisol Soils of Sahyadri Foothills of Western India
M. K. Krishnapriya *
Department of Soil Science and Agricultural Chemistry, College of Agriculture, Pune-411005, Maharashtra, India.
G. D. Patil
Department of Soil Science and Agricultural Chemistry, College of Agriculture, Kolhapur, 416004, Maharashtra, India.
N. Leno
Department of Soil Science and Agricultural Chemistry, College of Agriculture, Kerala Agricultural University, Trivandrum, Vellayani, 695522, Kerala, India.
G. K. Yadav
Department of Soil Science and Agricultural Chemistry, College of Agriculture, Pune-411005, Maharashtra, India.
*Author to whom correspondence should be addressed.
Abstract
Aim: To characterize the spatial variability of infiltration in both Inceptisol and Entisol soils of irrigated farms of College of Agriculture, Pune.
Study Design: Ten GPS based locations each from Inceptisol and Entisol were selected randomly and infiltration rates were computed using double ring infiltrometer.
Place and Duration of Study: The research was conducted at irrigated farms of College of Agriculture, Pune, between January 2019- May 2019.
Methods: Soil samples collected from these spots were analysed in lab for its physical and chemical properties and thus to arrives a correlation between infiltration rates and soil physico-chemical properties.
Results: Porosity (r =0.44*), per cent silt (0.58 **), per cent sand (0.57**) and hydraulic conductivity (0.53**) showed positive correlation with the cumulative infiltration rate, while the bulk density (r = -0.44*) and electrical conductivity (-0.84**) gave a negative correlation with the cumulative infiltration rate. Infiltration rates of soil varies with the spatial variability.
Keywords: Inceptisol, entisol, double ring infiltrometer, soil physico-chemical properties