Navigation Links
Economical, nonpolluting solutions to greenhouse growing found

ATHENS, GREECE -- A recent study of an ancient growing medium has implications for advancing growth and yield of greenhouse crops grown in soilless conditions.

Greek research scientists Dr. George Gizas and Dr. Dimitrios Savvas recently conducted trials of four grades of pumice to determine the most effective particle size for growing ornamental plants and vegetables in soilless conditions. Pumice, an inert mineral of volcanic origin, has been used for centuries as a growing medium. Readily available in many countries including Italy, Greece, Israel, and Iceland, pumice is relatively inexpensive and can be disposed of without harming the environment.

Gizas and Savvas conducted four trials in heated greenhouses using gypsophila (commonly known as baby's breath), rose, cucumber, and lettuce using different grades of pumice. In each experiment, pumice grades were tested with two growing systemspots or bags. To assess the growth and yield of each treatment, particle size and moisture retention were also determined.

The trials clearly showed that the most balanced and safe type of pumice is 0-8 millimeters, while the best cultivation method involves using pumice in pots higher than 15 centimeters. Gypsophila and cucumber responded with higher yields when grown in pots filled with the two finest pumice grades, while plants grown in bags resulted in poor yields regardless of the grade of pumice used.

Dr. Savvas, Director of the Faculty of Agricultural Technology at the Agricultural University of Athens, noted that greenhouse growers will see benefits from the study quickly. "The industry, specifically the enterprises involved in the production, standardization and distribution of pumice in the market, will benefit within one year by promoting the most suitable type of pumice and providing advanced know-how to interested growers", Savvas stated.


Contact: Michael W. Neff
American Society for Horticultural Science

Page: 1

Related biology news :

1. Solutions that reduce death of marine life reeled in by International Smart Gear Competition
2. Scientists must offer solutions for conserving tropical forests in a rapidly changing world
3. Plant-cell-produced technologies-cutting edge approach to bringing solutions to the market
4. New research indicates a troubled greenhouse is brewing
5. Asleep in the deep: Model helps assess ocean-injection strategy for combating greenhouse effect
6. Food-crop yields in future greenhouse-gas conditions lower than expected
7. Plutonium or greenhouse gases? Weighing the energy options
8. Siberian lakes burp time-bomb greenhouse gas
9. Dirty snow may warm Arctic as much as greenhouse gases
10. Gene therapy promising for growing tooth-supporting bone
11. Best research work in the area of wine growing
Post Your Comments:
(Date:6/2/2016)... YORK , June 2, 2016   The Weather ... is announcing Watson Ads, an industry-first capability in which consumers ... by being able to ask questions via voice or text ... Marketers have long sought ... the consumer, that can be personal, relevant and valuable; and ...
(Date:5/20/2016)... -- VoiceIt is excited to announce its new marketing ... working together, VoiceIt and VoicePass will offer an ... slightly different approaches to voice biometrics, collaboration between ... Both companies ... "This marketing and technology partnership allows VoiceIt ...
(Date:5/3/2016)... 2016  Neurotechnology, a provider of high-precision biometric ... Biometric Identification System (ABIS) , a complete system ... ABIS can process multiple complex biometric transactions with ... fingerprint, face or iris biometrics. It leverages the ... MegaMatcher Accelerator , which have been used ...
Breaking Biology News(10 mins):
(Date:6/23/2016)... ... 23, 2016 , ... Charm Sciences, Inc. is pleased to ... AOAC Research Institute approval 061601. , “This is another AOAC-RI approval of the ... Vice President of Regulatory and Industrial Affairs. “The Peel Plate methods perform comparably ...
(Date:6/23/2016)... ... June 23, 2016 , ... Supplyframe, the Industry Network ... Supplyframe Design Lab . Located in Pasadena, Calif., the Design Lab’s mission is ... projects are designed, built and brought to market. , The Design Lab is ...
(Date:6/23/2016)... BEACH, Calif. , June 23, 2016  Blueprint ... new biological discoveries to the medical community, has closed ... co-founder Matthew Nunez . "We have ... us with the capital we need to meet our ... will essentially provide us the runway to complete validation ...
(Date:6/23/2016)... , ... June 23, 2016 , ... ... quality, regulatory and technical consulting, provides a free webinar on Performing ... July 13, 2016 at 12pm CT at no charge. , Incomplete investigations are ...
Breaking Biology Technology: