hydroponics history

hydroponics history
Any questions about hydroponics!?

What is the purpose of hydroponics? Is it succsessful this goal? What is the story of hydroponics? Please try to save the first and second question in one paragraph and the last in another. If you can not not thats fine. Please answer I really need to know !!!!!!!!!!!!!!!!!!!!!:) now No I'm not looking not to copy / paste the answer from someone else, Mr. tale tatlı LOL! :) I have to write by hand LOL. I can not find anywhere else I've already done the JCE left is evil when YOU COME TH Yahoo Answers for homework HELP! Why do they have a section called Homework Help ????? I can not understand it! LOL

Hydroponics, growing plants without soil, developed from results of experiments to determine what substances are plant growth and composition of plants. These compounds work on the plant dates from the 1600s. However, the Plants were grown in a soilless culture far earlier than that. Hydroponics is at least as old as the pyramids. A primitive form has been carried on in Kashmir for centuries. The process of hydroponics growing in our oceans goes back to about the time when the earth was created. Hydroponic growing increasing soil prior. But as a farming tool, many believe it began in the ancient city of Babylon, with its famous hanging gardens, which is ranked as one of the Seven Wonders of the Ancient World, and was probably one of the first successful attempts grow plants hydroponically. Many gardening writers have suggested that the Hanging Gardens of Babylon were in fact an elaborate hydroponic system, in which fresh water rich in oxygen and nutrients was regularly pumped. The scientific approach earlier recorded to discover plant constituents was in 1600 when Belgian Jan van Helmont showed in his classical experiment that plants obtain substances in water. He planted a 5-pound willow shoot in a tube containing 200 pounds of dried mud that was covered to keep dust. After 5 years of regular watering with rainwater, he found the willow shoot increased in weight from 160 pounds, while the soil lost less than 2 ounces. His conclusion that plants obtain substances for growth Water was correct. However, he failed to realize that they also need carbon dioxide and oxygen from the air. The modern theory of chemistry, has made great progress during the seventeenth and eighteenth centuries, subsequently revolutionized scientific search. Plants when analyzed consisted only of elements derived from water, soil and air. In 1792, the brilliant English scientist Joseph Priestley discovered that plants placed in a room with a high level of "fixed air" (carbon dioxide) will gradually absorb carbon dioxide and release oxygen. Jean Ingen-Housz, two years later, Priestley's work one step further, showing that plants placed in a chamber filled with carbon dioxide could replace gas with oxygen in a few hours if the room has been placed in full sun. Because sunlight alone had no effect on container carbon dioxide, it is certain that the plant was responsible for this remarkable transformation. Ingen-Housz established then that the process worked more quickly in conditions of bright light, and only the green parts of plants 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 of nine elements considered essential to plant growth has been established. These proposals were subsequently verified by Jean Baptiste Boussingault (1851), a French scientist who began as a mineralogist employed by a mining company, turned to agricultural chemistry in the early 1850s. In his experiences with the media increasingly inert. By feeding plants with water solutions of different combinations of soil elements growing in pure sand, quartz and charcoal (an inert medium not soil), to which were added solutions of known chemical composition. He concluded that water was essential for plant growth in the supply of hydrogen and the substance dry plant consisting of hydrogen and carbon and oxygen that entered the air. He also said that plants contain nitrogen and other mineral elements and derive their entire nutrient requirements of soil from the elements he uses, he was then able to identify the mineral elements and what proportions were necessary to optimize growth plants, which constituted a major breakthrough. interest in their practical application of this "Nutriculture" did not grow up about 1925, when industry greenhouse expressed its interest in its use. Soil greenhouse had to be replaced frequently to overcome the problems of soil structure, fertility and pests. Consequently, researchers have realized the potential use of land for Nutriculture replace traditional methods of cultivation. In the 1920s and early 1930s, Dr. William F. Gericke of the University of California extended his experiments laboratory and work on plant nutrition for crops growing practice outdoors for commercial applications to large scale. This doing, he calls these systems Nutriculture "hydroponics". The word was derived from two Greek words, hydro, which means water and ponos meaning labor – literally "water-working". His work is regarded as the basis for all forms of hydroponics, although it has been mainly limited to water culture without the use of any rooting medium. Hydroponics is now defined as the science of plants without using soil, but by using an inert support, such as gravel, sand, peat, vermiculite, perlite or sawdust, to which is added a nutrient solution containing all essential elements required for plant growth and development normal. Since many hydroponic methods employ some type of medium that contains organic matter like peat or sawdust, it is often called the "culture Above ground, while water alone would be true hydroponics. Today, hydroponics is the term used to describe the various ways in which Plants can be raised without soil. These methods, also known generally as soilless gardening, include raising plants in containers filled with water and one of a number of non-soil mediums – including gravel, sand, vermiculite, clay and other more exotic, such as rocks or crushed bricks, pieces of concrete blocks, and even Styrofoam. Dr. Gericke application of hydroponics quickly proved itself by providing food for troops stationed on non-arable islands in the Pacific in the early 1940s. Recent surveys have shown that there are over 1,000,000 units of soilless farming households operating in the United States for food production alone. Russia, France, Canada, South Africa, Holland, Japan, Australia and Germany are among other countries where hydroponics is receiving the attention it deserves.

growing hydroponic weed growing marajuana plants history of medical marijuana

Share and Enjoy:
  • Print this article!
  • Digg
  • Sphinn
  • del.icio.us
  • Facebook
  • Mixx
  • Google Bookmarks
  • LinkedIn
  • MySpace
  • Propeller
  • RSS
  • StumbleUpon
  • Technorati
  • Twitter
  • Yahoo! Buzz

You must be logged in to post a comment.