tailieunhanh - Investigation of hydraulic properties of soils varying in texture, organic carbon and soluble salt contents of arid and semi-arid regions

Hydraulic properties of soils play a significant role in development and adoption of suitable water management practices capable of increasing input use efficiency of soils for maintaining agricultural production of arid and semi arid regions. The study was carried out to investigate the hydraulic properties of soils varying in texture, organic carbon and salt contents. The soil samples were collected from 0-15 and 15-30 cm depths at farmers’ field in different villages spread over nine districts of the Haryana state during 2016-17. The experimental soils were found to belong to six textural classes ., sand, loamy sand, sandy loam, loam, silty loam and sandy clay loam having silt + clay content from 6- 40 %. The organic carbon (OC) content, electrical conductivity, pH, saturated hydraulic conductivity (Ksat), sodium adsorption ratio, moisture at field capacity and permanent wilting point soils were determined using standard methods. The Ksat of the soils was found of to be significantly and exponentially positively correlated with bulk density (R2 = ) and negatively correlated with silt+clay content (R2 = ) at 0-15 and 15-30 cm depths. The Ksat had significant and exponential negative correlation with soil OC at 0-15 cm (R2 = ) and 15-30 cm (R2 =) in the present study. | Investigation of hydraulic properties of soils varying in texture, organic carbon and soluble salt contents of arid and semi-arid regions

• Nông nghiệp
• Hydraulic conductivity
• Soil moisture at field capacity
• Soil moisture at permanent wilting point
• Soil organic carbon
• Semi arid regions
• Nuclear energy
• Gyeongju bentonite
• Thermal conductivity
• Temperature effect
• Fractured Rocks
• Phenomenological Models
• Empirical Models
• Anisotropic Media
• Clay minerals
• Structural stability
• Magnesium ratio
• Soil erosion
• Bulk density
• Textural class
• Saturated hydraulic conductivity
• Soils in Hirakud command area
• Continuous irrigation
• Continuous irrigation on soil texture
• Red and lateritic soil
• Lateritic soil
• Diverse land use systems
• Lateritic highland soils
• Multiple regression equation
• Principal component analysis
• Minimum data set
• Puddled Soils
• Mineral Wastes
• Plant Systems
• Aquaporins Contribution
• Wildfire Severity
• Drain discharge
• Soil database
• K estimation methods
• Van Schilfgaarde equation in DRAINMOD
• Saturated hydraulic
• Cultivated field
• Virgin field
• Soil compaction
• khoa học ứng dụng
• kỷ thuật ứng dụng
• cơ khí chế tạo máy
• cơ học chất lõng
• Finite element
• Layered soil
• Hydraulic conductivity values
• Kirkham Hooghoudt equations
• Incomplete sphere
• Wetted bulb
• Wetting front coordinates
• Surface trickle irrigation system
• Subsurface drainage
• Crop yield
• Crop intensity
• TBP command area
• Thermal hydraulic analysis
• Fuel thermal conductivity
• Er doped assembly
• Erbia fully poisoned PWR
• Erbia credit super high burnup fuel concept
• Establishment methods
• Moisture regimes
• Infiltration rate
• Penetration resistance of soil
• Water table and infiltration
• Soil hydrologic parameters
• Subsurface drainage system
• Geophysical characterization
• Alluvial plain
• Case of Karfiguela
• Electrical tomography
• BMC Plant Biology
• Persea americana Mill
• Phytophthora cinnamomi
• Branch dieback