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[1] [2] [3] Crop desiccants (not to be confused with a chemical desiccants) include herbicides and defoliants, used to accelerate the natural drying of plant tissues. [4] Desiccation of crops through the use of herbicides is practiced worldwide on a variety of food and non-food crops .
A honey bee collecting nectar from an apricot flower.. The nectar resource in a given area depends on the kinds of flowering plants present and their blooming periods. Which kinds grow in an area depends on soil texture, soil pH, soil drainage, daily maximum and minimum temperatures, precipitation, extreme minimum winter temperature, and growing degre
The material is placed on a shelf, and a drying agent or desiccant, such as dry silica gel or anhydrous sodium hydroxide, is placed below the shelf. Often some sort of humidity indicator is included in the desiccator to show, by color changes, the level of humidity. These indicators are in the form of indicator plugs or indicator cards.
One measure of desiccant efficiency is the ratio (or percentage) of water storable in the desiccant relative to the mass of desiccant. Another measure is the residual relative humidity of the air or other fluid being dried. For drying gases, a desiccant's performance can be precisely described by the dew point of the dried product. [1]
Hygroscopy is essential for many plant and animal species' attainment of hydration, nutrition, reproduction and/or seed dispersal. Biological evolution created hygroscopic solutions for water harvesting, filament tensile strength, bonding and passive motion – natural solutions being considered in future biomimetics. [1] [2]
For storage, the plant needs to be dried by hanging it up in little bundles. [23] Once dry, the leaves need to be removed in order to store them in sealed jars and once the seeds brown, they can be preserved with a desiccant in a similar airtight manner. [18] The plant only lives for a single summer which makes it an annual plant. [18] [24]
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