Leaching fraction, soil salinity, and drainage efficiency

Soil and Water Salinity

Definitions and forms of salinity All natural waters contain soluble salts. The concentration of the salts determines whether the water is of high quality (drinkable or usable for irrigation without need for special precautions) or of low quality (brackish or saline). Water in the soil also contains soluble salts (sometimes called free or nonattached salts). The amount of salts in the root zone...

Leaching requirement for soil salinity control: Steady-state versus transient models

Water scarcity and increased frequency of drought conditions, resulting from erratic weather attributable to climatic change or alterations in historical weather patterns, have caused greater scrutiny of irrigated agriculture’s demand on water resources. The traditional guidelines for the calculation of the crop-specific leaching requirement (LR) of irrigated soils have fallen under the microsc...

Drainage and Soil

Interaction of Sugarcane Bagasse Biochars and Salinity on Availability and Fraction of Cadmium in a Clay Loam Calcareous Soil

Pollution of the environment by heavy metals, especially soil pollution with cadmium (Cd), is one of the most important environmental problems. Also, salinization of soils due to a decrease in irrigation water quality reduces plants growth. To investigate the effect of sugarcane bagasse biochars and salinity on Cd available and Cd fractions in a contaminated soil (15 mg kg-1 Cd), an experimenta...

Management and Soil-Quality Effects on Fertilizer-Use Efficiency and Leaching

outcomes to readily measurable parameters, we should be able to better optimize management within different We tested the hypothesis that particulate organic matter (POM) regions and cropping systems. and aggregate dry mean weight diameter (DMWD) are related to This work follows up on previous findings suggesting fertilizer-use efficiency (FUE) and leaching susceptibility. Soil cores measures o...