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:11/9/2015)...  Synaptics Inc. (NASDAQ: SYNA ), the leading ... into the automotive market with a comprehensive and dedicated ... consumer electronics human interface innovation. Synaptics, industry-leading touch controllers, ... automotive industry and will be implemented in numerous locations ... , Japan , and ...
(Date:11/2/2015)... , Nov. 2, 2015  SRI International has ... to provide preclinical development services to the National Cancer ... SRI will provide scientific expertise, modern testing and support ... of preclinical pharmacology and toxicology studies to evaluate potential ... --> The PREVENT Cancer Drug Development Program is ...
(Date:10/29/2015)... , Oct. 29, 2015  The J. Craig ... report titled, "DNA Synthesis and Biosecurity: Lessons Learned and ... Department of Health and Human Services guidance for synthetic ... 2010. --> --> ... also has the potential to pose unique biosecurity threats. ...
Breaking Biology News(10 mins):
(Date:11/30/2015)... Md. , Nov. 30, 2015 ... development company committed to the fostering and monetization ... the current and prospective initiatives designed to create ... Chief Executive Officer of Spherix. "Based on published ... future licensees exceeds $50 billion and Spherix will ...
(Date:11/30/2015)... , Nov. 30, 2015  Champions Oncology, Inc. (CSBR), ... services to personalize the development and use of oncology ... Executive Officer, will be presenting at the LD MICRO ... Pacific Standard Time (PST).  The conference, held at the ... Angeles, CA , will feature 200 small/micro-cap companies ...
(Date:11/30/2015)... 30, 2015 TapImmune, Inc. ... of innovative peptide and gene-based immunotherapeutics and vaccines for ... it will be presenting at the 8 th ... at 2.30 PM PT. Dr. John N. Bonfiglio ... be giving the presentation and will join TapImmune management ...
(Date:11/30/2015)... , Nov. 30, 2015  Aytu BioScience, Inc. (OTCQB: ... and related conditions, will present at two upcoming investor ... an interactive real-time virtual conference, to be held December ... Conference, to be held December 2 nd & ... and streamed live via webcast. ...
Breaking Biology Technology: