Hydroponics Home. Hydroponic Culture Systems. Aeroponics Water Culture (Hydroponics) Nutrient Film Technique (NFT) Substrate Culture
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1 Hydroponics Home Production of Leafy Green Vegetables for Local Foods Market Chiwon W. Lee Department of Plant Sciences North Dakota State University Fargo, ND Hydroponic Culture Systems Aeroponics Water Culture (Hydroponics) Nutrient Film Technique (NFT) Substrate Culture Lettuce Cultivar Evaluation for Hydroponic Culture on NFT System Lettuce cultivar evaluations in hydroponic culture
2 Performance of Lettuce Cultivars on NFT System of Hydroponic Culture Lettuce Production by NFT System (Larry s Lettuce, Henderson, ND) Lettuce Production by a modified Nutrient Film Technique (NFT) at Hydrosun Hydroponics (Grasston, MN) Iron (Fe++) and Calcium (Ca++) Enrichment Studies Cultures
3 Lettuce Plants Grown Hydroponically in Tub Cultures Butterheadlettuce grown with elevated levels of Fe in hydroponic culture using FeEDDHA. Hydroponic Tub Cultures of Lettuce Advantage of Tub Culture Over NFT System 1. The tub culture method requires less installation and operation costs than the NFT system. 2. Plant growth in tub culture is faster requiring only 20 days from seedling anchor to harvest as compared to 27 days by NFT system. 3. Tub culture allows lettuce production anywhere and in small spaces like basement as long as light is provided. 4. The scheduling and quantity of production can easily be adjusted according to market demand.
4 Lettuce Seedling Production for Hydroponic Culture Visit by 5th Grade Students to Learn Hydroponic Culture Rex RZ Lettuce in Hydroponic Tub Culture
5 Supplies Needed for Hydroponic Tub Cultures Air Supply Through Air-stone Bubbles Inside Tub Aqua-pump, air bubble stones, plastic tubing, kitchen tubs, Styrofoam boards. Mili-Equvalent Per Liter (meq/l) Nutrient H + Ca 2+ Mg 2+ K + NH 4 + Na + NO 3 - SO 4 2- H 2 PO 4 - Cl - HCO 3 - Total Required (26) In water (11.1) Needed (16.6) NH 4 NO Ca(NO 3 ) 2 4H 2 O KNO MgSO 4 7H 2 O Mg (NO 3 ) 2 6H 2 O H 3 PO 4 (70%) HNO 3 (70%) H 2 SO 4 (70%) Nutrient Ion Balancing for Hydroponic Solutions According to Water Analysis Quick Preparation of Nutrient Solution Making 200 ppm N solution using a soluble commercial fertilizer: 200 ppm= 200 mg/liter (100 % fertilizer) 1,000 mg/liter (1g/liter) (20 % fertilizer) 3.8 g/gallon (19 g/5-gallon bucket) Total (32.8) z z Actualtotal ion concentration is 28.6 meq/l( =28.6) after neutralization of bicarbonate and acid (H + + HCO CO 2 + H 2 O).
6 The Color of the 200 ppm N Solution Prepared by Fertilizer LED Lighting for Indoor Culture of Vegetables LED light box (4 feet x 8 feet) LED light box (2 feet x 4 feet) LED Light Box (2 feet x 4 feet) Installed in the Basement LED spot light (10,000 lumen) LED flood light (2,000 lumen) Production of Microgreen and Other Vegetables Under LED Light Box
7 Microgreens Grown Under 24-Hour Lighting with LED Microgreen Vegetables Grown Under 16-hr Day/8-hr Night Adjustment of Light Intensity to 200 µmol m-2 sec-1 for Lettuce Light Intensity Measured at Plant Level
8 Lettuce Grown Under LED Light for 10 Days after Transplanting Hydroponic Lettuce Grown Under LED Spot Light in a Corner of Bedroom for 10 Days Supply of Oxygen to Root System by Air-Stones Lettuce Tub Cultures Grown in Dining Area with LED Spot Light
9 Checking Air Bubbles in Hydroponic Nutrient Solution Four Lettuce Cultivars Grown in Tub Cultures for 10 Days Hydroponic Culture of Orchids Four Cultivars of Lettuce Grown with Hydroponic Tub Cultures
10 Natural Grocers Store, Fargo, ND Prairie Roots Food CO-OP, Fargo, ND Summary Acknowledgements 1. High quality leafy green vegetables like lettuce can be grown home for family consumption as well as sales to locally-grown foods market year round. 2. The tub-culture system may allows an efficient use of small spaces for growing leafy greens as long as sufficient light intensity is provided. 3. Improvement of LED lamps for higher light intensity is needed for growing leafy greens with spot-lighting. 1. Specialty Crop Block Grant administered through North Dakota State Agriculture Department. 2. Northern Plains Sustainable Society Farm Breeding Club. 3. Individual Cooperators: Dr. Tae Seok Ko Dr. John Ke Rachel Borgert Andrew Harmon Benjamin Smail Ethan Ho Casey McCollum
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