EurekaMag.com logo
+ Site Statistics
References:
53,214,146
Abstracts:
29,074,682
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

A solid-matrix, liquid hybrid hydroponic system for establishing small-seeded crop species


HortTechnology 9(4): 668-671
A solid-matrix, liquid hybrid hydroponic system for establishing small-seeded crop species
A solid-matrix-over-liquid (hybrid) growth system was developed for direct sowing of small-seeded crop species into hydroponic culture and compared for performance with a standard solid-matrix, capillary-wick hydroponic system. Seeds were sown directly onto a 3-cm (1.2-inch) deep soilless seed bed occupying 0.147 m(2) (1.582 ft(2)) within a tray. The planted seed bed was moistened by wicking up nutrient solution through polyester wicking material from a 7.0-L (6.6-qt) reservoir just below the matrix seed bed. The hybrid system successfully grew dense [435 plants/m(2) (40.4 plants/ft(2)], uniform canopies of dwarf Brassica napus L. in a controlled-environment growth room. Seed yield using the hybrid system was twice that achieved with the matrix-based system. Both systems eliminated the labor needed to transplant many small seedlings from a separate nurse bed into a standard bulk liquid hydroponic system. Root-zone pH extremes caused by ion uptake and exchange between roots and unrinsed soilless media were avoided for the hybrid system by the short dwell time of roots in the thin matrix before they grew through the matrix and an intervening headspace into the bulk solution below, where pH was easily managed. Once roots grew into the bulk solution, its level was lowered, thereby cutting off further capillary wicking action and drying out the upper medium. Beyond early seedling establishment, water and nutrients were provided to the crop stand only by the bulk nutrient solution. This hybrid hydroponic system serves as a prototype for larger-scale soilless growth systems that could be developed for production of small-seeded crops in greenhouses or controlled environments.

(PDF 0-2 workdays service: $29.90)

Accession: 003348065



Related references

Do small-seeded species have higher survival through seed predation than large-seeded species?. Ecology 84(12): 3148-3161, 2003

Stabilization of pH in solid-matrix hydroponic systems. Hortscience 28(10): 981-984, 1993

Large-seeded species are less dependent on light for germination than small-seeded ones. Seed Science Research 10(1): 99-104, 2000

A hybrid anaerobic solid-liquid system for food waste digestion. Water Science and Technology 52(1-2): 223-228, 2005

The discrete multi-hybrid system for the simulation of solid-liquid flows. Plos One 10(5): E0124678-E0124678, 2016

Enhancement of food waste digestion in the hybrid anaerobic solid-liquid system. Water Science and Technology 57(9): 1369-1373, 2008

Biological characteristics of development of the root system in promising small-seeded species of lupin. Dokl. sel'skohoz. Akad. Timirjazev. (Rep. Timirjazev Agric. Acad.). 102, 143-48, 1965

Digestion of frozen/thawed food waste in the hybrid anaerobic solid-liquid system. Waste Management 28(9): 1654-1659, 2007

The use of hybrid anaerobic solid-liquid (HASL) system for the treatment of lipid-containing food waste. Journal of Chemical Technology and Biotechnology 80(4): 455-461, 2005

Digestion of pre-treated food waste in a hybrid anaerobic solid-liquid (HASL) system. Journal of Chemical Technology and Biotechnology 81(3): 345-351, 2006