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--- library:articles:the_nutrient_uptake_process 2018/04/12 14:16
+++ library:articles:the_nutrient_uptake_process 2018/04/12 14:18 current
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-Nutrients such as phosphorus and potassium are absorbed strongly by soils and are only present in small quantities in the soil solution. These nutrients move to the root by diffusion. As uptake of these nutrients occurs at the root, the concentration in the soil solution in close proximity to the root decreases. This creates a gradient for the nutrient to diffuse through the soil solution from a zone of high concentration to the depleted solution adjacent to the root. Diffusion is responsible for the majority of the P, K and Zn moving to the root for uptake. Table 3 gives the relative importance of each mechanism in positioning nutrients adjacent to plant roots for uptake.
+Nutrients such as phosphorus and potassium are absorbed strongly by soils and are only present in small quantities in the soil solution. These nutrients move to the root by diffusion. As uptake of these nutrients occurs at the root, the concentration in the soil solution in close proximity to the root decreases. This creates a gradient for the nutrient to diffuse through the soil solution from a zone of high concentration to the depleted solution adjacent to the root. Diffusion is responsible for the majority of the P, K and Zn moving to the root for uptake. Table 3 (Havlin et
+al. 2005) gives the relative importance of each mechanism in positioning nutrients adjacent to plant roots for uptake.
 ^ Table 3. Percent of nutrients taken up by a corn crop \\ normally supplied by root interception, mass flow and diffusion ||||
 ^  Nutrient  ^  Root interception  ^  Mass flow  ^  Diffusion  |