Home Made Hydroponics System

A question about hydroponics!?

What is the purpose of hydroponics? Succsessful Is this objective? Which is the story of hydroponics? Please try to put the question first and the second in a paragraph, and the last in another. If you can not thats fine. Please, I really respond n !!!!!!!!!!!!!!!!!!!!!:) need to know now I'm not trying to copy and paste someone else's response, Mr. Tatle story LOL! I have to write by hand LOL. I can find anywhere else, I've done the rest themselves, REALLY BAD WHEN IT'S COME TO YAHOO ANSWERS HOMEWORK HELP TH! Why which has a section called Homework Help ????? Simply I can not imagine that! LOL

Hydroponics, growing plants without soil, has developed from the results of experiments conducted to determine what substances make plants grow and the composition of plants. These jobs in the plant components dates from the 1600s. However, plants grown in a soilless culture long before this. Hydroponics is at least as old as the pyramids. An early form has been done for centuries in Kashmir. The process of hydroponics in our oceans goes back around the time when the earth was created. Hydroponic growth preceded by increasing soil. But as a farming tool, many believe began in the ancient city of Babylon with its famous hanging gardens, which are shown as one of the seven wonders of the ancient world, and was probably one of the first successful attempts to grow plants hydroponically. Writers have suggested that many gardening of the Hanging Gardens of Babylon were in fact a complex hydroponic system in which fresh water rich in oxygen and nutrients are pumped regularly. The first approach scientist to discover the components plant was recorded in 1600 when Belgian Jan Van Helmont showed in his classical experiment that plants obtain substances from water. Planted a session of willow than 5 pounds in a tube containing 200 pounds of dry soil was covered to protect it from dust. After five years of regular watering with rainwater he found the willow stems increased weight of 160 pounds, whereas soil loss less than 2 ounces. His conclusion that plants obtain substances for growth water is correct. However, he did not realize that they also require carbon dioxide and oxygen in the air. The modern theory of chemistry, made great advances during the seventeenth and eighteenth centuries, subsequently revolutionized scientific investigation. The plants when they are analyzed consisted only of elements derived water, soil and air. In 1792, the brilliant English scientist Joseph Priestley discovered that plants in a chamber with a high level of "fixed air" (dioxide carbon) gradually absorbs carbon dioxide and emit oxygen. Jean Ingen-Housz, some two years later, Priestley does the work of one step further demonstrating that the plants in a chamber filled with carbon dioxide could replace the gas with oxygen within several hours, when the camera is placed in the light the sun. Because sunlight alone had no effect in a container of carbon dioxide, the fact is that the plant was responsible for this remarkable transformation. Ingen-Housz been established that this process works faster in bright light conditions, and only the green parts of a plant were involved. In 1804, Nicolas De Saussure proposed and published the results of his investigations that plants are composed of minerals and chemical elements obtained from water, soil and air. In 1842 a list nine elements believed essential for the growth of plants has been completed. These propositions were later verified by Jean Baptiste Boussingault (1851), a scientist French began as a mineralogist employed by a mining company, turned to agricultural chemistry in the 1850s. In their experiments with substrates inert growing. By feeding plants with water solutions of various combinations of soil elements in pure sand, quartz and charcoal (an inert medium not soil), the which added the known chemical composition solutions. He concluded that water was essential for plant growth in the supply of hydrogen and dried plant material consisting of more carbon hydrogen and oxygen came from the air. He also stated that plants contain nitrogen and other elements minerals, and obtain all of its needs for nutrients from the soil of the elements he used, was then able to identify the mineral elements and what proportions were necessary to optimize plant growth, which was a breakthrough. Interest in practical application of this "Nutriculture" did not develop until approximately 1925, when the greenhouse industry expressed interest in use. Greenhouse soils had to be replaced frequently to overcome problems of soil structure, fertility and pests. As a result, researchers realized the potential land use Nutriculture to replace conventional culture methods. In the late 1920s and early 1930, Dr. William F. Gericke of the University of California extended its laboratory experiments and work on plant nutrition to practical crops growing outside for large-commercial scale. In doing so, these systems Nutriculture qualified "hydroponics." The word is derived from two Greek words, hydro, which means ponos the meaning water and labor - literally "water working." His work is considered the basis for all forms of hydroponic cultivation, but was mainly limited the culture of water without the use of any means of rooting. Hydroponics is now defined as the science of growing plants without using soil, but by the use of an inert medium, as gravel, sand, peat, vermiculite, perlite or sawdust, to which is added a nutrient solution containing all the essential elements needed for plant growth and normal development. Since many hydroponic methods employ some type of medium containing organic matter such as peat or sawdust, which is often called "culture without soil, while the water culture alone would be really hydroponics. Today, hydroponics is the term used to describe the various forms in which plants can be raised without soil. These methods, also known as general gardening without soil, including growing plants in containers filled with water and any of a number of ways without land - including gravel, sand, vermiculite, clay and other more exotic means, such as crushed rocks or bricks, brick fragments concrete, and even Styrofoam. Dr. the application of hydroponics Gericke soon proved by the food supply for troops stationed in the islands arable in the Pacific in the 1940s. Recent surveys have indicated that more than one million units of household soilless culture that operate in the United States for the production food alone. Russia, France, Canada, South Africa, Holland, Japan, Australia and Germany are among other countries where hydroponics is receiving the attention it deserves.

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