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Plant nutrition is the study of the chemical elements and compounds necessary for plant growth and reproduction, plant metabolism and their external supply. In its absence the plant is unable to complete a normal life cycle, or that the element is part of some essential plant constituent or metabolite .
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 ...
Selenium, which is an essential element for animals and prokaryotes and is a beneficial element for many plants, is the least-common of all the elements essential to life. [ 3 ] [ 63 ] Selenium acts as the catalytic center of several antioxidant enzymes, such as glutathione peroxidase , [ 11 ] and plays a wide variety of other biological roles .
All of these nutrients are equally important for the growth of the plant and lack of one nutrient can result in poor growth of the plant as well as becoming more vulnerable to diseases or can lead to death. [10] These nutrients along with CO 2 and energy from the sun aids in the development of the plant. [11]
The process of photosynthesis provides the main input of free energy into the biosphere, and is one of four main ways in which radiation is important for plant life. [ 115 ] The radiation climate within plant communities is extremely variable, in both time and space.
They do not need soil to grow, absorbing moisture and nutrients through little scale-like structures, called trichomes, on their surfaces. They grow on branches, tree trunks, and rocks.
Nutrients in larger quantities than the body needs may have harmful effects. [1] Edible plants also contain thousands of compounds generally called phytochemicals which have unknown effects on disease or health including a diverse class with non-nutrient status called polyphenols which remain poorly understood as of 2024.
Essential nutrients like fiber, protein, magnesium, calcium and omega-3 fatty acids play a crucial role in a variety of health concerns that arise during this life stage, including maintaining ...