<P> In agriculture , leaching refers to the loss of water - soluble plant nutrients from the soil , due to rain and irrigation . Soil structure , crop planting , type and application rates of fertilizers , and other factors are taken into account to avoid excessive nutrient loss . Leaching may also refer to the practice of applying a small amount of excess irrigation where the water has a high salt content to avoid salts from building up in the soil ( salinity control ) . Where this is practiced , drainage must also usually be employed , to carry away the excess water . </P>
<P> In agriculture , leaching refers to the loss of water - soluble plant nutrients from the soil , due to rain and irrigation . Soil structure , crop planting , type and application rates of fertilizers , and other factors are taken into account to avoid excessive nutrient loss . Leaching may also refer to the practice of applying a small amount of excess irrigation where the water has a high salt content to avoid salts from building up in the soil ( salinity control ) . Where this is practiced , drainage must also usually be employed , to carry away the excess water . </P>
what is leaching and why is it a problem
what is leaching and why is it a problem
leaching refers to the loss of water - soluble plant nutrients from the soil , due to rain and irrigation . Soil structure , crop planting , type and application rates of fertilizers , and other factors are taken into account to avoid excessive nutrient loss .
leaching refers to the loss of water - soluble plant nutrients from the soil , due to rain and irrigation . Soil structure , crop planting , type and application rates of fertilizers , and other factors are taken into account to avoid excessive nutrient loss .