Hydroponics

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Hydroponics on a yacht

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Submitted by Elsewhere on 2020-Nov-19 Thu 10:38
2177

Self-sufficiency is a goal of many liveaboard cruisers who sail the world’s oceans, generating their own water and power, writes Erin Carey With limited space and the obvious challenges of salt, wind and motion, many would never entertain the idea of growing their own produce. Yet it can be possible: we spoke to cruisers who…

"More companies are looking for products dedicated to hydroponics"

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Submitted by Elsewhere on 2020-Nov-19 Thu 10:36
2178

With hydroponics and vertical farming gaining popularity around the world, growers are increasingly interested in finding crop varieties with a proven track record in controlled environment system. To meet this, Vilmorin-Mikado has positioned itself as a leader in plant breeding and the provision of…

📄 Method of Silicon Application Affects Quality of Strawberry Daughter Plants during Cutting Propagation in Hydroponic Substrate System

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Submitted by Elsewhere on 2020-Nov-11 Wed 09:00
2118

The beneficial effects that silicon (Si) has on plant growth as well as resistance to biotic and abiotic stresses have been well documented for many crops in recent years. However, few studies focus on the effects of Si on plant growth during the propagation stage of strawberry (Fragaria × ananassa, Duchesne). This study was conducted to investigate the optimal method for Si application during the cutting propagation of strawberry in soilless cultivation. Strawberry mother plants were supplied with Si through foliar spray, runner spray, or root drench before the cutting propagation, then half of the daughter plants in each treatment received continued Si supply through foliar spray or through root drench after the cutting propagation. The results showed that the plant height, petiole length and diameter, leaf length and width, shoot fresh and dry weights, and root fresh and dry weights were significantly increased by Si root drench both before and after the cutting propagation. Moreover, plants absorbed more Si by drench than by spray, and the absorbed Si was only able to be transported from the root to the shoot, and from the mother plant to the daughter plant.

📺 Horizontal farming: "Way more competitive than many people think"

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Submitted by Elsewhere on 2020-Nov-09 Mon 13:28
2082

Recently, a vase of crystal clear water was put on the table when Maren Schoormans and Simon Kleinjan told, on behalf of Viscon, about cultivation on water, or hydroponics. It is a cultivation method which is no longer new, although it receives extra attention now that investors also see opportunities in…

Important Tips for Designing a Hydroponic Production Facility

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Submitted by Elsewhere on 2020-Nov-04 Wed 16:43
2047

Why do you keep saying buffer capacity? For anyone that has called me to discuss the design of their new vertical farm or greenhouse, they have ...

📺 Five tips on hydroponic substrates

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Submitted by Elsewhere on 2020-Nov-02 Mon 13:21
2012

Dr. Paul Fisher from the University of Florida IFAS Extension interviews Shawn Mallen from A.M.A. Horticulture in a new YouTube video where they discuss the different commercial substrates most commonly used in hydroponic production, the importance of air porosity, and compaction of substrates. This video…

Nutrisense: A decision support system to calculate and readjust hydroponic nutrient solutions

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Submitted by Elsewhere on 2020-Nov-02 Mon 13:20
2013

The management of nutrition in soilless cultivations poses serious difficulties to growers, because the calculation of the fertilizers needed to prepare a nutrient solution requires a good background in chemistry and is time consuming. Multiple factors affect the composition of a nutrient solution.…

"I can see hydroponics becoming bigger, from commercial use to homes"

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Submitted by Elsewhere on 2020-Oct-28 Wed 07:43
1960

A University of British Columbia student design team is developing a fully autonomous agricultural robot, driven by their belief that Canada can lead the world in sustainable farming. The UBC AgroBot aims to precisely exterminate weeds and fertilize crops as well as record data from a farmer’s operation.…

Clear visualization of biofilm removal from water lines

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Submitted by Elsewhere on 2020-Oct-23 Fri 13:28
1901

Plant greenhouses use dripping/irrigation lines or hydroponic systems to provide the plants with sufficient water. However, invisible from the outside, a biofilm may build op on the inner lining of these water systems. Such biofilm may significantly reduce the water flow or even physically clog entire…

The Role of Silicon as a Nutrient in Hydroponic Recipes

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Submitted by Elsewhere on 2020-Oct-22 Thu 21:42
1890

By Karla Garcia  Silicon (also known as silica, Si) is found in high quantities in open field production but is absent in hydroponic nutritional recipes. The lack of knowledge about the role of silicon (Si) in horticultural crops became apparent when using soilless / hydroponic systems.  Research has demonstrated that silicon is one of the […]

Publix is helping people connect with their food through hydroponics

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Submitted by Elsewhere on 2020-Oct-09 Fri 13:28
1753

The following information is derived from an interview Agritecture conducted with Curt Epperson, Business Development Director of Produce and Floral at Publix Super Markets.  Publix Super Markets, headquartered in Florida, is the largest employee-owned grocery chain in the United States. Since opening in 1930,…

Lettuce in a hydroponic system: 100% organic nutrients

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Submitted by Elsewhere on 2020-Oct-08 Thu 11:01
1735

Van der Knaap is known for their substrate knowledge, but did you know they also developed a sustainable cultivation system? The liquid nutrient solution rich in organic NO3 that is produced with this system is also extremely suitable for other cultivation systems, such as growing lettuce in a hydroponic…

Soilless blueberries made in Campania

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Submitted by Elsewhere on 2020-Oct-06 Tue 12:39
1687

"We started in 2016, almost by chance, with the idea of winning a bet, that of being able to grow blueberries in our area. We decided to grow them in pots, in an area of the National Park of Cilento, and we obtained good yields per hectare. We adopted a specific soil (very acidic) and applied all the…

Alleviation of Salt Stress by Plant Growth-Promoting Bacteria in Hydroponic Leaf Lettuce

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Submitted by Elsewhere on 2020-Oct-06 Tue 12:29
1682

Mediterranean areas with intensive agriculture are characterized by high salinity of groundwater. The use of this water in hydroponic cultivations can lead to nutrient solutions with an electrical conductivity that overcomes the tolerance threshold of many vegetable species. Plant growth-promoting rhizobacteria (PGPR) were shown to minimize salt stress on several vegetable crops but the studies on the application of PGPR on leafy vegetables grown in hydroponics are rather limited and have not been used under salt stress conditions. This study aimed to evaluate the use of plant growth-promoting bacteria to increase the salt tolerance of leaf lettuce grown in autumn and spring in a floating system, by adding a bacterial biostimulant (1.5 g L−1 of TNC BactorrS13 a commercial biostimulant containing 1.3 × 108 CFU g−1 of Bacillus spp.) to mineral nutrient solutions (MNS) with two salinity levels (0 and 20 mM NaCl). Leaf lettuce plants showed a significant reduction of growth and yield under salt stress, determined by the reduction of biomass, leaf number, and leaf area. Plants showed to be more tolerant to salinity in autumn than in spring.

GR365N practices and teaches hydroponic farming for the social good

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Submitted by Elsewhere on 2020-Oct-06 Tue 01:20
1683

Give a man a fish and he’ll eat for a day. Teach a man to fish, and he’ll eat for a lifetime.

With that idea in mind, GR365N (pronounced Green 365) was created. The social enterprise aims to teach individuals how to grow fresh food in hydroponic systems allowing them to access fresh food 365 days a year with minimal growing costs.

With COVID affecting food production, team members Dan Atkinson and Colin McVicker believe hydroponic farming this isn’t the future of food production, rather, it is the present. 

The way the system works is simple. Seedlings are placed in vertical posts that contain plastic substrate. The main water tank pumps water through the entire system and trickles down into the posts leading the plants to grow out horizontally on vertical posts using LED lights, no soil and 95 per cent less water than farms. 

Function and Management of Potassium in Hydroponics

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Submitted by Elsewhere on 2020-Sep-30 Wed 15:46
1612

Potassium is recognized as a nutrient required to keep good quality in our plants and fruits. This nutrient has a huge impact on many plant processes due to its function as enzyme activator. Also, potassium has a strong role in stomata opening and closure due to its function as an osmotic regulator.  […]

Cultivating Better Produce With Hydroponics

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Submitted by Elsewhere on 2020-Sep-14 Mon 10:29
1308

Traditional soil-grown crop production has worked well for thousands of years, but there’s one fact that has placed strain on conventional agriculture: The human population is expected to reach 10 billion by 2050. With that comes a demand that already stressed fields can’t necessarily supply.

The function and management of nitrogen in hydroponics

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Submitted by Elsewhere on 2020-Sep-11 Fri 09:48
1302

Nitrogen is one of the most important nutrients in plant development. All vital processes in plants are associated with protein, of which nitrogen is an essential constituent. Therefore, nitrogen management can have a huge impact on crop production. Some of the most important effects of nitrogen in crop…

Is hydroponic farming actually sustainable?

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Submitted by Elsewhere on 2020-Sep-08 Tue 10:13
1258

According to the UN, the world is on the brink of its worst food crisis in 50 years. The global food industry is searching for a more sustainable and accessible system for producing healthy food, particularly fresh fruit and vegetables. Techniques such as hydroponics and vertical farming may provide the…

Hydroponic system promises cost savings for low to mid-tech vegetable growers

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Submitted by Elsewhere on 2020-Aug-28 Fri 09:28
1160

500Foods shared this story from HD.com. Plantlogic is focused on designing solutions for substrate production that will increase the health of plants and enable growers to adequately fertigate their crops. With these goals in mind, Plantlogic presents its newest, innovative product for hydroponic production of vegetables. The "Kratos" is aimed…

Hydroponic farming; a sound investment

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Submitted by Elsewhere on 2020-Jul-07 Tue 13:32
388

Hydroponic farming is a method of growing plants without soil, using mineral nutrient solutions in a water solvent. Hydroponics can rapidly help serve unmet demands for fresh organic vegetables, grown close to their market. To certify soil for organic farming after its been used in conventional farming…

Ground broken on new hydroponic facility to serve marginalized communities

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Submitted by Elsewhere on 2020-Jul-07 Tue 13:29
394

June 30, 2020 was an exciting day for local Connecticut organization, New Opportunities. After years of planning, ground was broken on a new hydroponic farm project called "CT Food4Thought" that is going to bring fresh, nutritious, pesticide free food to local food banks, shelters, soup kitchens, and…

A hydroponic greenhouse at 2km altitude

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Submitted by Elsewhere on 2020-Jul-06 Mon 09:33
378

The ancient county of Huize, located in the northeast of Yunnan, China, has an altitude of 2120 m, an average annual temperature of 12.7 °C, strong sunshine, and a large temperature difference between day and night, which is very suitable for the production of leafy vegetables. Here, there is a…