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Hydroponics

An ethnography of hydroponic gardening
by

lauren grissom

on 6 December 2012

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Transcript of Hydroponics

Lauren Grissom What the heck is hydroponics?

Hydroponics is the cultivation of plants in nutrient solutions (water containing fertilizers) rather then with soil.

In order for plants to grow, water must be delivered to the plant root system. There are several ways for this to occur. of hydroponics Hydroponic agriculture has been in use for thousands of years Why use a hydroponic system? Disadvantages Advantages The Basic types of Hydroponic Systems Research Objectives:
To explore the material culture involved hydroponic gardening and to describe the pros and cons resulting from this method of subsistence Material Culture in Hydroponic Gardening METHODS Historical account of Hydroponics Semi-Structured Ethnographies of: Micheal and Valarie Sims of Mr. Naturals Garden Jeff and Shelly Kellogg of First Fruits Hydroponics Andrew Villanueva of Simply Hydroponics and Organics "For each problem eliminated another is created"- Dr. Stout Skilled farmer & trained technicians Large Investment Environmental risks Possible spread of disease or pest manifestation "Not for the inexperienced gardener, it's vital that you control your ph system" -Andrew Villanueva "the potential to go high tech is limited only by your imagination and budget -Simply Hydroponics Website "The negaitive at least with NFT type hydroponics is that you have to keep your water at 72*F, which means you have to control the temperatures, also you have to have some sort of generator in case the power goes out, you only have a couple hours before all your plants die" -Andrew Villanuerva elimination of weeds, tillage, irrigation, etc higher yield No reliance on elements Internet Investigation Egyptians, Inca Indian tribes, the Aztecs, and the Babylonians practiced hydroponic gardening. Ancient Civilizations 1860-1861 : "Nutriculture" - Sachs and Knop 1925: Greenhouse industry has interest in "nutriculture" 1930s: W.F. Gericke of University of California Experiments in plant nutrition on a commercial scale & terms 'nutriculture' into 'hydroponics' Hydro ( water) & Ponos ( labor ) = "water working" Less water (nutrient film technique) Water Culture Ebb and Flow (Flood & Drain) Drip (recovery or non-recovery) NFT Aeroponic Wick Micheal and Valarie use modified NFT hydro system less waste less space we use about 90% less water. -Shelly Kellog feed everything the same thing They have lettuce growing in their "Florida room" and peppers & tomatoes growing outside. conclusions: They purchase food grade pbc pipes from plumbing suppliers First Fruits Hydroponics: Uses vertical hydro stackers, which uses drain to waste. ORMI: Organic Materials Review Institute// No organic certification for hydroponics 10,000 strawberry plants & 7,000 vegetable plants "glorified sprinkler system" retracts water from a commercial deep well & mixes nutrients in 200 gallons of water. Plants are fed three times a day. Material list:
Nutrients from general hydroponics
Special pH monitor
Reverse osmosis water system
Purified water Growing Media: our farm we use a 50/50 mix of Vermiculite and Perlite.
Perlite is a naturally occurring volcanic glass that thermally expands upon processing.
Vermiculite is a coarse aggregate material made from expanded mica and it has a high water holding capacity. "so easy to harvest" The perks of hydroponic gardening out ways the negatives. HISTORY Andrew Villanueva is an employee at
Simply Hydroponics and Organics in Largo FL
Retail store which sells hydroponic home kits, fertilizers, and other hydroponic gardening needs Examining the evolution of technology in hydroponics reveals the advancements and adaptations in this form sustainable farming & provides helpful information for improving hydroponics in the future. Soil-less farming gives the ability of growing more crops in less space, faster, & with less waste No use of herbicides or pesticides the "run off" is natural higher level of vitamin and mineral content the "run off" is natural it has much fewer pests environmentally friendly Not "organic"
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