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Drip Irrigation
Drip irrigation or trickle irrigation is a type of micro-irrigation system that has the potential to save water and nutrients by allowing water to drip slowly to the roots of plants, either from above the soil surface or buried below the surface. The goal is to place water directly into the rhizosphere, root zone and minimize evaporation. Drip irrigation systems distribute water through a network of valves, pipes, tubing, and emitters. Depending on how well designed, installed, maintained, and operated it is, a drip irrigation system can be more efficient than other types of irrigation systems, such as surface irrigation or sprinkler irrigation. As of 2023, 3% of the world's farmers use drip irrigation. History Ancient China Primitive drip irrigation has been used since ancient times. ''Fan Shengzhi shu'', written in China during the first century BCE, describes the use of buried, unglazed clay pots filled with water, sometimes referred to as Olla#Use in irrigation, Ollas, as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Button Dripper
A button is a fastener that joins two pieces of fabric together by slipping through a loop or by sliding through a buttonhole. In modern clothing and fashion design, buttons are commonly made of plastic but also may be made of metal, wood, or seashell. Buttons can also be used on containers such as wallets and bags. Buttons may be sewn onto garments and similar items exclusively for purposes of fashion, ornamentation. In the applied arts and crafts, craft, a button can be an example of folk art, studio craft, or even a miniature art object, work of art. In archaeology, a button can be a significant Artifact (archaeology), artifact. History Buttons and button-like objects used as ornaments or Seal (emblem), seals rather than fasteners have been discovered in the Indus Valley civilization during its Kot Diji phase (c. 2800–2600 BC). Buttons as apparel have been found at sites of the Catacomb culture, Russia (2500-1950 BC), at the Tomb of the Eagles, Scotland (2200–1800 BC), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Impact Sprinkler
An impact sprinkler (sometimes called an impulse sprinkler) is a type of irrigation sprinkler in which the sprinkler head, driven in a circular motion by the force of the outgoing water, pivots on a bearing on top of its threaded attachment nut. Invented in 1933 by Orton Englehart, it quickly found widespread use. Though it has in many situations been replaced by gear-driven "rotor heads", many varieties of impact sprinkler remain in use. Development The original horizontal action impact drive sprinkler was invented in 1933 and patented in 1935 by Glendora, California citrus grower Orton Englehart. He later sold it to Clem and Mary La Fetra who manufactured and marketed it under the brand name Rain Bird. Design and operation The basic design operates as follows: The sprinkler base is fixed to the water pipe with a threaded attachment nut. The head can pivot on a bearing above the base. The force of the outgoing water flings the sprinkler arm on a circular motion. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sulfuric Acid
Sulfuric acid (American spelling and the preferred IUPAC name) or sulphuric acid (English in the Commonwealth of Nations, Commonwealth spelling), known in antiquity as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen, and hydrogen, with the molecular formula . It is a colorless, odorless, and Viscosity, viscous liquid that is Miscibility, miscible with water. Pure sulfuric acid does not occur naturally due to its Dehydration reaction, strong affinity to water vapor; it is Hygroscopy, hygroscopic and readily absorbs water vapor from the Atmosphere of Earth, air. Concentrated sulfuric acid is a strong oxidant with powerful dehydrating properties, making it highly corrosive towards other materials, from rocks to metals. Phosphorus pentoxide is a notable exception in that it is not dehydrated by sulfuric acid but, to the contrary, dehydrates sulfuric acid to sulfur trioxide. Upon addition of sulfuric acid to water, a considerable amount of heat is releas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chlorine
Chlorine is a chemical element; it has Symbol (chemistry), symbol Cl and atomic number 17. The second-lightest of the halogens, it appears between fluorine and bromine in the periodic table and its properties are mostly intermediate between them. Chlorine is a yellow-green gas at room temperature. It is an extremely reactive element and a strong oxidizing agent, oxidising agent: among the elements, it has the highest electron affinity and the third-highest electronegativity on the revised Electronegativity#Pauling electronegativity, Pauling scale, behind only oxygen and fluorine. Chlorine played an important role in the experiments conducted by medieval Alchemy, alchemists, which commonly involved the heating of chloride Salt (chemistry), salts like ammonium chloride (sal ammoniac) and sodium chloride (common salt), producing various chemical substances containing chlorine such as hydrogen chloride, mercury(II) chloride (corrosive sublimate), and . However, the nature of fre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fertigation
Fertigation is the wikt:injection, injection of fertilizers, used for soil amendments, water amendments and other water-Solubility, soluble products into an irrigation system. Chemigation, the injection of chemicals into an irrigation system, is related to fertigation. The two terms are sometimes used interchangeably however chemigation is generally a more controlled and regulated process due to the nature of the chemicals used. Chemigation often involves insecticides, herbicides, and fungicides, some of which pose health threat to humans, animals, and the environment. Uses Fertigation is practiced extensively in commercial agriculture and horticulture. Fertigation is also increasingly being used for landscaping as dispenser units become more reliable and easier to use. Fertigation is used to add additional nutrients or to correct nutrient deficiencies detected in plant tissue analysis. It is usually practiced on the high-value crops such as vegetables, turf, fruit trees, and orn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Controller (irrigation)
An irrigation controller is a device to operate automatic irrigation systems such as lawn sprinklers and drip irrigation systems. Most controllers have a means of setting the frequency of irrigation, the start time, and the duration of watering. Some controllers have additional features such as multiple programs to allow different watering frequencies for different types of plants, rain delay settings, input terminals for sensors such as rain and freeze sensors, soil moisture sensors, weather data, remote operation, etc. There are two basic types of controllers, electric and hydraulic. Most automatic irrigation valves are diaphragm valves in which the water above the diaphragm must be discharged for the valve to open. In a hydraulic system, the controller and valves are connected via small plastic tubes approximately 4 mm (¼ in) in diameter. The controller opens the tube connected to the valve, allowing that valve to open. Most newer systems employ electromechanical o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pressure Regulator
A pressure regulator is a valve that controls the pressure of a fluid to a desired value, using negative feedback from the controlled pressure. Regulators are used for gases and liquids, and can be an integral device with a pressure setting, a restrictor and a sensor all in the one body, or consist of a separate pressure sensor, controller and flow valve. Two types are found: The pressure reduction regulator and the back-pressure regulator. *A pressure reducing regulator is a control valve that reduces the input pressure of a fluid to a desired value at its output. It is a normally-open valve and is installed upstream of pressure sensitive equipment. *A back-pressure regulator, back-pressure valve, pressure sustaining valve or pressure sustaining regulator is a control valve that maintains the set pressure at its inlet side by opening to allow flow when the inlet pressure exceeds the set value. It differs from an over-pressure relief valve in that the over-pressure valve is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Backflow Prevention Device
A backflow prevention device is used to protect potable water supplies from contamination or pollution due to backflow. In water distribution systems, water is normally maintained at a significant pressure to enable water to flow from the tap, shower, or other fixture. Water pressure may fail or be reduced when a water main bursts, pipes freeze, or there is unexpectedly high demand on the water system (for example, when several fire hydrants are opened). Reduced pressure in the pipe may allow contaminated water from the soil, from storage, or from other sources to be drawn up into the system. Terminology Backflow means the undesirable reversal of flow of a liquid, gas, or suspended solid into the potable water supply; a backflow preventer is designed to keep this from happening. Points at which a potable water system connects with a non-potable water system are called cross connections. Such connections occur naturally in appliances such as clothes washers and dishwashers, bu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Venturi Injector
Venturi may refer to: *Venturi (surname) Technology *Venturi tube *Ejector venturi scrubber, a wet scrubber *Venturi effect, a fluid or air flow effect *Venturi mask, a medical device *Venturi meter, a device for measuring the flow rate of fluids in a pipe *Venturi pump, a pump using the venturi effect *Venturi scrubber, gas stream scrubber *Venturi Transport Protocol, transport layer protocol Companies *Venturi (company), an electric car manufacturer Motorsport *Venturi Grand Prix, a team competing in the FIA Formula E World Championship *For the team that competed as Venturi in the 1992 Formula One season, see Larrousse *See also: Venturini Motorsports, an American stock car team Places *Venturi, the Provençal Occitan name for Montagne Sainte-Victoire People * Robert Venturi Robert Charles Venturi Jr. (June 25, 1925 – September 18, 2018) was an American architect, founding principal of the firm Venturi, Scott Brown and Associates. Together with his wife and partne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Water Filter
A water filter removes impurities by lowering contamination of water using a fine physical barrier, a chemical process, or a biological process. Filters cleanse water to different extents, for purposes such as: providing agricultural irrigation, accessible drinking water, public and private aquariums, and the safe use of ponds and swimming pools. Methods of filtration Filters use sieve, sieving, adsorption, ion exchanges, biofilms and other processes to remove unwanted substances from water. Unlike a sieve or Screen filter, screen, a filter can potentially remove particles much smaller than the holes through which its water passes, such as nitrates or germs like ''Cryptosporidium.'' Among the methods of filtration, notable examples are Sedimentation (water treatment), sedimentation, used to separate hard and suspended solids from water and activated charcoal treatment, where, typically, boiled water is poured through a piece of cloth to trap undesired residuals. Additionally, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drip Emitter
Drip, The Drip, or DRIP may refer to: * Drop (liquid) Biology and medicine * Intravenous therapy * Vitamin D receptor interacting protein (DRIP) * Mesomycetozoea, a class of eukaryotes (also known as ''DRIP clade'') * Murphy drip, in proctoclysis * Post-nasal drip, excessive mucus produced by the sinuses Language * ''Drip'', a dated, mild pejorative for 'an uninteresting person' * ''Drip'', a Gen Z slang term for 'one's fashion/style' Law * Data Retention and Investigatory Powers Act 2014, a piece of UK legislation * Declaration on the Rights of Indigenous Peoples Music * "Drip" (Cardi B song), featuring Migos * "Drip" (Brooke Candy song), featuring Erika Jayne * The Drips, an American punk band * "Drips", a song by Eminem and Obie Trice from the album ''The Eminem Show'' * "Drip", the debut single by South Korean girl group Hinapia * "Drip", a 2019 song by Mike Posner from the album ''A Real Good Kid'' * ''Drip'' (album), the first studio album of South Korean gir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dianthus Caryophyllus Colori Joy (p) 2005-12-04
''Dianthus'' ( ) is a genus of about 340 species of flowering plants in the family Caryophyllaceae, native mainly to Europe and Asia, with a few species in north Africa and in southern Africa, and one species (''D. repens'') in arctic North America. Common names include carnation (''D. caryophyllus''), pink (''D. plumarius'' and related species) and sweet william (''D. barbatus''). Description The species are mostly herbaceous perennials, a few are annual or biennial, and some are low subshrubs with woody basal stems. The leaves are opposite, simple, mostly linear and often strongly glaucous grey green to blue green. The flowers have five petals, typically with a frilled or pinked margin, and are (in almost all species) pale to dark pink. One species, ''D.'' ''knappii'', has yellow flowers with a purple centre. Some species, particularly the perennial pinks, are noted for their strong spicy fragrance. Taxonomy Species Selected species include: Hybrids include ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
