INDIAN GEOGRAPHY

Detailed explanation-1: -Leaching is the loss of water-soluble plant nutrients and substances such as fertilizers and pesticides from the soil due to rain and irrigation to water bodies or lower soil surface. These leached out chemicals are called leachites.

Detailed explanation-2: -In agriculture, leaching is the loss of water-soluble plant nutrients from the soil, due to rain and irrigation.

Detailed explanation-3: -Rainwash, also spelled rain-wash or rain wash or sometimes called hillwash, is a process of erosion in which loose surface material is carried away by rainwater that has reached the surface but has not yet become concentrated into rivulets.

Detailed explanation-4: -Drainage of soil water can lead to the loss of nutrients when those nutrients are dissolved in the soil solution and move beyond the root zone. This movement of nutrients from the root zone to the soil below is called leaching.

Detailed explanation-5: -Soil leaching is the downward movement of dissolved mobile plant nutrients in the soil profile following percolating water such as rain or irrigation water. Leaching occurs when the soil pores become filled with water and water moves downward in the soil.