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NW Washington | Plants' taking up phosphorus from the soil is a very complicated process that is not easy to understand or manage. Here is a quick grab of some info on the net.
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"Plants primarily absorb phosphorus from the soil through their roots by taking up dissolved inorganic phosphate ions (orthophosphate) from the soil solution, primarily through diffusion, and can also utilize a symbiotic relationship with mycorrhizal fungi to enhance phosphorus uptake, especially in low-phosphorus soils; these fungi extend their hyphae into the soil to access more phosphorus which they then transfer to the plant roots in exchange for carbohydrates.
Key points about phosphorus uptake in plants:
Form of uptake:
Plants absorb phosphorus mainly as inorganic phosphate ions (H2PO4- and HPO42-).
Root absorption:
The primary site of phosphorus uptake is through the root hairs on the plant roots.
Diffusion:
Phosphorus moves towards the root surface through diffusion in the soil solution.
Mycorrhizal fungi:
Many plants form symbiotic relationships with mycorrhizal fungi which significantly increase their ability to absorb phosphorus from the soil.
Soil factors affecting uptake:
Soil pH, texture, and the presence of other minerals like iron and aluminum oxides can influence the availability of phosphorus to plants.
Phosphorus Forms and Functions - Soil Management
Plant roots absorb phosphorus from the soil solution. In comparison to other macronutrients, the phosphorus concentration in the s...
Soil Management
Phosphorus Dynamics: From Soil to Plant - PMC - NCBI
In acidic soils, P can be dominantly adsorbed by Al/Fe oxides and hydroxides, such as gibbsite, hematite, and goethite (Parfitt, 1...
NCBI
Phosphorus Basics | Integrated Crop Management
Phosphorus is supplied to roots primarily by diffusion and root interception. Mass flow/bulk flow is the movement of nutrients to ...
Integrated Crop Management
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Generative AI is experimental.
Soil Management
Phosphorus moves to the root surface through diffusion. However, the presence of mycorrhizal fungi, which develop a symbiotic relationship with plant roots and extend threadlike hyphae into the soil, can enhance the uptake of phosphorus, as well especially in acidic soils that are low in phosphorus.
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Plant phos uptake, thinking outside of the box
