Search results
Results from the WOW.Com Content Network
In Greek, "sideritis" (Gr: σιδηρίτις) can be literally translated as "he who is made of iron". [6] The plant was known to ancient Greeks, specifically Pedanius Dioscorides and Theophrastus. [7] Although Dioscorides describes three species, only one (probably S. scordioides) is thought to belong to Sideritis. In ancient times "sideritis ...
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 ...
The primary force that creates the capillary action movement of water upwards in plants is the adhesion between the water and the surface of the xylem conduits. [14] [15] Capillary action provides the force that establishes an equilibrium configuration, balancing gravity. When transpiration removes water at the top, the flow is needed to return ...
Cast iron plants don’t typically bloom indoors, but when grown outdoors they can produce small purple flowers at the soil level. Slow growers, cast iron plants top out at two to three feet high ...
Watercress is 95% water and has low contents of carbohydrates, protein, fat, and dietary fiber. A 100-gram serving of raw watercress provides 46 kilojoules (11 kilocalories), is particularly rich in vitamin K (238% of the Daily Value , DV), and contains significant amounts of vitamin A , vitamin C , riboflavin , vitamin B 6 , calcium , and ...
The draw of water upwards may be entirely passive and can be assisted by the movement of water into the roots via osmosis. Consequently, transpiration requires the plant to expend very little energy on water movement. Transpiration assists the plant in absorbing nutrients from the soil as soluble salts. Transpiration plays an important role in ...
Top-fed deep water culture is a technique involving delivering highly oxygenated nutrient solution direct to the root zone of plants. While deep water culture involves the plant roots hanging down into a reservoir of nutrient solution, in top-fed deep water culture the solution is pumped from the reservoir up to the roots (top feeding).