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The average crop-time for fast-growing microgreens, such as many brassicas, is 10–14 days from seeding to harvest. [1] [3] [4] Slower growing microgreens, such as beets, chard, and many herbs, may take 16–25 days to reach harvestable size. Both baby greens and microgreens lack any legal definition.
A 2020 U.S. survey found that typical indoor agriculture crops, per pound of crop yield, consumed between US$0.47 (for leafy greens) and US$1.38 (for microgreens) in inputs (especially seed, growing media, and nutrients) -- though tomatoes were reported at US$0.06 inputs per pound. Labor costs for container farms were reported at US$2.35 per pound.
Eliot Coleman (born 1938) is an American farmer, author, agricultural researcher and educator, and proponent of organic farming.He wrote The New Organic Grower. [1] [2] [3] He served for two years as Executive Director of the International Federation of Organic Agriculture Movements (IFOAM), and was an advisor to the U.S. Department of Agriculture during its 1979–80 study, Report and ...
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Plants placed into nutrient-rich water channels in an NFT system A home-built NFT hydroponic system. Nutrient film technique (NFT) is a hydroponic technique where in a very shallow stream of water containing all the dissolved nutrients required for plant growth is re-circulated past the bare roots of plants in a watertight gully, also known as channels.
Several economic models exist for vegetable farms: A relatively small operation is a market garden while a larger farm may grow large quantities of few vegetables and sell them in bulk to major markets or middlemen, which requires large growing operations. A farm may produce for local customers, which requires a larger distribution effort.
Moreover, aeroponics provides an enclosed and controlled environment, making it an ideal system for growing pathogen-free seed stocks. The enclosed growth chamber, combined with the isolation of plants from each other, serves to prevent initial contamination from external pathogens and limits the spread of any existing pathogens among plants.
Hydroponics offers many advantages, notably a decrease in water usage in agriculture. To grow 1 kilogram (2.2 lb) of tomatoes using intensive farming methods requires 214 liters (47 imp gal; 57 U.S. gal) of water; [9] using hydroponics, 70 liters (15 imp gal; 18 U.S. gal); and; only 20 liters (4.4 imp gal; 5.3 U.S. gal) using aeroponics.