Plant nutrition

thumb|upright=1.5|Schematic of photosynthesis in plants. The carbohydrates produced are stored in or used by the plant. upright=1.5|thumb|right|Composite image showing the global distribution of photosynthesis, including both oceanic phytoplankton and terrestrial [[vegetation. Dark red and blue-green indicate regions of high photosynthetic activity in the ocean and on land, respectively.]]

thumb|300px|Overview of cycle between autotrophs and heterotrophs. [[Photosynthesis is the main means by which plants, algae and many bacteria produce organic compounds and oxygen from carbon dioxide and water (green arrow).]]

portable container used to water plants by hand

measure of the acidity or alkalinity in soils

physiologic study of the chemical elements and compounds necessary for the metabolism and normal life of plants

property of a soil defined by the exact grain size distribution of its finer-grained anorganic matter

surface on which an organism lives

thumb|upright|Fertigation using white poly bag thumb|upright|Fertilizer mixed with water connected to a drip irrigation system Fertigation is the injection of fertilizers, used for soil amendments, water amendments and other water-soluble products into an irrigation system.

The Rhizobiaceae is a family of Pseudomonadota comprising multiple subgroups that enhance and hinder plant development. Some bacteria found in the family are used for plant nutrition and collectively make up the rhizobia. Other bacteria such as Agrobacterium tumefaciens and Rhizobium rhizogenes severely alter the development of plants in their ability to induce crown galls or hairy roots, respectively. The family has been of an interest to scientists for centuries in their ability to associate with plants and modify plant development. The Rhizobiaceae are, like all Pseudomonadota, Gram-negativ

A mycotroph is a plant that gets all or part of its carbon, water, or nutrient supply through symbiotic association with fungi. A holomycotroph gets all its nutrition solely from a mycorrhizal symbiosis. The term can refer to plants that engage in either of two distinct symbioses with fungi: Many mycotrophs have a mutualistic association with fungi in any of several forms of mycorrhiza. The majority of plant species are mycotrophic in this sense. Examples include Burmanniaceae. Some mycotrophs are parasitic upon fungi in an association known as myco-heterotrophy.

Humins are carbon-based macromolecular substances, that can be found in soil chemistry or as a by-product from saccharide-based biorefinery processes.

thumb|Dry akadama thumb|Wet akadama is a naturally occurring, granular clay-like mineral used as soil for bonsai trees and other container-grown plants. It is surface-mined, immediately sifted and bagged, and supplied in various grades; the deeper-mined grade are somewhat harder and more useful in horticulture than the softer, shallow-mined grades. Akadama may also act as one component of growing medium when combined with other elements such as sand, composted bark, peat, or crushed lava. The color darkens when moist which can help the grower determine when to water a tree.

root structures that aid phosphorus uptake

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