Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Chicken litter provides organic alternative to synthetic fertilizers

04.03.2011
Litter-based fertilizers show potential for commercial marigold production

Recent movements aimed at managing environmental impacts of agriculture have spurred interest in the development and use of organic and natural fertilizers for commercial applications.

Many organic fertilizers are byproducts of livestock, fish, food, and other processing industries. In Mississippi, where the poultry industry produces more than 730 million broiler chickens each year, and annual chicken litter production is estimated at more than 730,000 tons, there is a naturally abundant supply of chicken litter available for fertilizer.

New research from scientists at Mississippi State University, in collaboration with the USDA-ARS Southern Agricultural Laboratory, investigated the effects of two non-composted broiler chicken litter-based organic fertilizers and one commonly used synthetic controlled-release fertilizer on marigold growth and flowering. The research study, published HortScience, indicated that some broiler litter-based fertilizers have the potential to be used as organic fertilizer sources for container production of marigolds in greenhouses."Despite having lower nutrient concentrations than many synthetic fertilizers, similar broiler litter-based fertilizers have been shown to be effective plant fertilizers. For growers wishing to use these and other natural fertilizers in their production systems, the biggest question is how the fertilizers should be managed", stated Guihong Bi, corresponding author of the study. "How litter-based fertilizer behaves in an actual greenhouse setting remains a significant question."

The researchers conducted two experiments designed to evaluate the growth and flowering responses of greenhouse-grown French marigold (Tagetes patula L. 'Janie Deep Orange') to two non-composted broiler chicken litter-based organic fertilizers, 4 and 3, and one commonly used synthetic controlled-release fertilizer, 14. In both experiments, fertilizer 4 was applied at four rates of 1%, 2%, 4%, and 6% (by volume); 3 was applied at four rates of 1.34%, 2.67%, 5.34%, and 8.0% (by volume); and 14 was applied at rates of 0.99, 1.98, 3.96, and 5.94 kg/m3.

Results from the study indicated that broiler litter-based 4 and 3 have the potential to be used as organic fertilizer sources for container production of marigolds in greenhouses.

"For the organic fertilizer rates used in this study, in general, low to intermediate rates of 4 and 3 produced the highest plant growth index, shoot dry weight, number of flowers per plant, total flower dry weight, and root rating. Plants grown at high rates of 4 and 3 showed symptoms associated with excessive fertilization, including reduced plant growth, decreased root quality, and decreased number and dry weight of flowers." According to the authors, the results are consistent with other studies that have shown excessive organic fertilizer depressed plant growth compared with lower fertility levels

The scientists advised growers to be cautious with the rate of fertilizer applied. "Because different crops may respond differently to these natural fertilizers, it is important for growers to test any new fertilizers before incorporating them into their production practices", they noted.

The complete study and abstract are available on the ASHS HortScience electronic journal web site: http://hortsci.ashspublications.org/cgi/content/abstract/45/9/1373

Founded in 1903, the American Society for Horticultural Science (ASHS) is the largest organization dedicated to advancing all facets of horticultural research, education, and application. More information at ashs.org

Michael W. Neff | EurekAlert!
Further information:
http://www.ashs.org

More articles from Agricultural and Forestry Science:

nachricht Plasma-zapping process could yield trans fat-free soybean oil product
02.12.2016 | Purdue University

nachricht New findings about the deformed wing virus, a major factor in honey bee colony mortality
11.11.2016 | Veterinärmedizinische Universität Wien

All articles from Agricultural and Forestry Science >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Electron highway inside crystal

Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.

Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Researchers identify potentially druggable mutant p53 proteins that promote cancer growth

09.12.2016 | Life Sciences

Scientists produce a new roadmap for guiding development & conservation in the Amazon

09.12.2016 | Ecology, The Environment and Conservation

Satellites, airport visibility readings shed light on troops' exposure to air pollution

09.12.2016 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>