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Greenhouse Soil Hydroponic Culture Options
   
Soil Culture
The easiest way to get started in greenhouse vegetable production is to use the existing soil on site, but soils must be well drained. Soils can be improved by applying ample quantities of well-rotted livestock manure, compost, or composted livestock manure. Apply all manures before fumigation. Soils should be fumigated or sterilized with steam at least two weeks before planting. If the soil is steamed, maintain a temperature of 180°F for at least four hours. Avoid deep tillage after sterilization to prevent reintroduction of weed seed and disease organisms from below the sterilization or fumigation zone.
A soil test should be taken before planting to determine the amount of fertilizer to apply for each crop. All phosphorous and potassium fertilizers should be applied before planting and incorporated directly into the soil. Nitrogen fertilizers should be applied in split applications, part before planting and the rest as needed during the growing season. Nitrogen fertilizers can be applied as sidedressings or through a drip irrigation system. Secondary and minor fertilizer elements should be applied as needed.
Hydroponic Culture
Hydroponic culture of greenhouse vegetables involves the production of crops in sand, gravel, or artificial soil-less mixes in bags, tubes, tubs, tanks, or troughs designed to allow the circulation of nutrient media needed for crop growth. Unlike conventional soil culture, hydroponic culture of greenhouse vegetables is less forgiving and requires intense management. Although present automation systems can minimize fertilization and irrigation labor inputs, continuous monitoring of the system is important. Growers must be highly knowledgeable about plant growth, nutrient balances, cultural media characteristics, and plant physiology. Nevertheless, hydroponics allows the culture of greenhouse vegetables in areas where soils are not suitable for vegetable production.
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Rise of a 'ganjapreneur'Contra Costa TimesiGrow Hydroponics owner and founder Dhar Mann shows one of the hydroponic plant growing systems at his warehouse store in Oakland, Calif., on Friday, Aug. ... |
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Rise of a 'ganjapreneur'Daily Review OnlineweGrow Hydroponics owner and founder Dhar Mann shows one of the hydroponic plant growing systems at his warehouse store in Oakland, Calif., on Friday, Aug. ...and more » |
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Potency of pot rising thanks to hydroponicsGary Post TribuneThe country has seen an increase in hydroponic marijuana over the last decade, but it really hasn't hit Northwest Indiana. There was an increase in Michigan ... |
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