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In agriculture, leaching is 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.
In agriculture, a catch crop is a fast-growing crop that is grown between successive plantings of a main crop. [1] It is a specific type of cover crop that is grown between two main crops. [ 2 ] This crop is utilized as a way to reduce nitrogen leaching but it also promotes environmental benefits such as fortifying soil structure, retention of ...
Leaching is the loss or extraction of certain materials from a carrier into a liquid (usually, but not always a solvent), and may refer to: Leaching (agriculture) , the loss of water-soluble plant nutrients from the soil; or applying a small amount of excess irrigation to avoid soil salinity
The levels of nutrients in the soil fluctuate throughout the year as nutrients are removed by plants as they grow and also through leaching. The level of nutrients in the soil increases as we add ...
In pedology, leaching is the removal of soluble materials from one zone in soil to another via water movement in the profile. [1] It is a mechanism of soil formation distinct from the soil forming process of eluviation , which is the loss of mineral and organic colloids .
When the plants use the water, the salts are left behind in the soil and eventually begin to accumulate. This water in excess of plant needs is called the leaching fraction. Salination from irrigation water is also greatly increased by poor drainage and use of saline water for irrigating agricultural crops.
A leaching model is a hydrological model by which the leaching with irrigation water of dissolved substances, notably salt, in the soil is described depending on the hydrological regime and the soil's properties. The model may describe the process (1) in time and (2) as a function of amount of water applied.
Nutrients in the soil are taken up by the plant through its roots, and in particular its root hairs.To be taken up by a plant, a nutrient element must be located near the root surface; however, the supply of nutrients in contact with the root is rapidly depleted within a distance of ca. 2 mm. [14] There are three basic mechanisms whereby nutrient ions dissolved in the soil solution are brought ...
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