TAILIEUCHUNG - Effect of soil texture on drying pattern of soil moisture after saturation

The variability in water retention in soil is primarily attributable to soil texture which is mainly responsible for pore geometry and discontinuity, when compared to soil mineralogy. Under field conditions soil moisture variability is a major constraint for proper soil water management. In the present study, a pot experiment was conducted with an objective of assessing the effect of soil texture on moisture content and its depletion rate. For this purpose, the soils of seven variable textures were pre saturated and allowed to follow a drying period up to 15 days. The absolute moisture content of the soil was measured by direct gravimetric method. Besides, per cent moisture saturation and moisture depletion rate were also computed. The results showed that sandy texture (sandy, loamy sand) had low gravimetric water content (GWC) followed by a moderate GWC in loamy texture (sandy clay loam, clay loam, sandy loam). The highest GWC was recorded in clay texture (clay and sandy clay). The sandy texture exhibited a sharp drop in GWC up to a period of 7 days and thereafter attained a steady state of depletion. The results clearly indicated that fine clayey texture exhibited initially low depletion rate of per cent GWC loss/day and could retain moisture for long period, wherein coarse sandy texture lost moisture at a faster rate with an initial depletion rate of per cent GWC loss/day. The study concluded that there was a significant variability in moisture content and moisture retention pattern among the soils of variable texture. Hence, such in situ variability in drying pattern must be assessed prior to irrigation for efficient water management. | Effect of soil texture on drying pattern of soil moisture after saturation

• Nông nghiệp
• Soil texture
• Gravimetric water content
• Moisture depletion rate
• Drying pattern
• Soil moisture after saturation
• Erosion predictor
• Fractal dimension
• Interrill erodibility
• Characterizing soil fragments
• Bulk density
• Textural class
• Saturated hydraulic conductivity
• Soils in Hirakud command area
• Continuous irrigation
• Continuous irrigation on soil texture
• the sand
• Organisms
• Relief
• Summary
• Parent material
• Hydraulic conductivity
• Soil moisture at field capacity
• Soil moisture at permanent wilting point
• Soil organic carbon
• Semi arid regions
• Sri Ganganagar district
• Physical properties
• Tropical crops
• Physical properties of soil
• Soil texture is classified
• CORINE erosion model
• Soil map
• Geographic information system
• Biological properties
• Water holding capability
• Porosity etc
• Sunflower spinachsunflower crop rotation
• Organic carbon
• CEC and Micronutrients
• Valley districts of manipur
• DTPA extractable micronutrients
• Geospatial analysis
• RS GIS
• Ordinary Kriging
• Sandy loam
• Farmyard manure
• Bio digester liquid manure
• Soil health under aerobic rice
• Aerobic rice
• Field bean cropping sequence
• Red sandy loam in texture
• Annals of Agricultural Sciences
• Agricultural Sciences
• Khoa học nông nghiệp
• Mineral nutrient
• Morpho physiology