Navigation Links
Sustainable agriculture at the ESA Annual Meeting
Date:8/4/2009

Advances in ecology increasingly reveal that conventional agricultural practices have detrimental effects on the landscape ecology, creating problems for long-term sustainability of crops. In a series of sessions at the Ecological Society of America's Annual Meeting, ecologists will present their ideas on how our agricultural practices can take lessons from natural environments.

Perennial plants produce more, require less input than annual croplands

The major crops used globally to feed people and livestock wheat, rice, maize and soy are based on an annual system, in which crop plants live one year, are harvested, and are replanted the following year. These systems are notorious, however, for stripping organic nutrients from soils over time.

Perennial systems, on the other hand, contain plants that live longer than one year despite being harvested annually. Many agricultural scientists, including Jerry Glover of The Land Institute, say that perennial crops are the key to creating more sustainable agricultural systems.

"Across agricultural history, we've fundamentally relied on annual grain crops," Glover says. "But at the same time we rely on them, they're degrading the ecosystems they're in, which reduces their productivity."

To compare the long-term sustainability of these two cropping systems, Glover and his colleagues conducted a study on the physical, biological and chemical differences between annual wheat fields and perennial grass fields in Kansas. The fields had each been harvested annually for the past 75 years.

In each test, the researchers found perennial fields to be healthier and more sustainable ecosystems. In the perennial fields, the plants' total root mass was more than seven times that of the annuals, and the roots infiltrated about a foot deeper into the ground. The perennial fields also had higher soil microbe biodiversity and higher levels of dissolved carbon and nitrogen in the
'/>"/>

Contact: Christine Buckley
christine@esa.org
202-833-8773
Ecological Society of America
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Conference on sustainable transportation is Oct. 29-31
2. FIJI Water announces sustainable growth initiative with commitment to help mitigate climate change
3. Observing sustainable tourism in Antarctica
4. New grants will support research in the sustainable built environment
5. Biotechnology key to developing sustainable industries says international panel
6. Abandoned farmlands are key to sustainable bioenergy
7. Algae from the ocean a sustainable energy source of the future
8. New report: Greatest value of forests is sustainable water supply
9. Can biofuels be sustainable?
10. Universities develop a more sustainable future
11. Experiment demonstrates 110 years of sustainable agriculture
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... OAK RIDGE, Tenn., July 11, 2014--Researchers at the ... received eight R&D 100 awards, presented by R&D ... innovations. , "These awards recognize the tremendous ... Energy Ernest Moniz. "Research and development at the ... its energy challenges and pursue the scientific and ...
(Date:7/11/2014)... for Bone and Mineral Research awarded Michael F. Holick, ... with the 2014 Louis V. Avioli Award. Holick, a ... internationally known for revolutionizing the understanding of vitamin D ... award honors a member of the American Society for ... bone and mineral basic research. It is named for ...
(Date:7/11/2014)... Stem Cell scientists have set a "mouse TRAP" to ... by a recent study published in the Journal ... uses a technique called TRAP to extract cellular and ... Invented by scientists at the Rockefeller Institute for Medical ... to the protein-making machinery, or ribosomes, of the cell ...
Breaking Biology News(10 mins):ORNL wins eight R&D 100s 2ORNL wins eight R&D 100s 3ORNL wins eight R&D 100s 4BUSM's Michael F. Holick receives American Society for Bone and Mineral Research award 2
... leading provider of,embedded speech solutions today announced the ... AG, according to SVOX CEO Volker Jantzen.,SVOX has ... developed,over 25 years, including the SpeechAdvance(TM) speech recognition ... majority of the Professional,Speech Processing Group,s employees will ...
... MAYWOOD, Ill. -- Most people know that too much sodium ... suggests that people trying to lower their blood pressure should ... effect to sodium. Researchers found that the ratio of ... cardiovascular disease than sodium or potassium alone. "There ...
... officials from the U.S. National Science Foundation and the ... today marked the occasion of the research vessel JOIDES ... and transit to Honolulu, after a complete transformation to ... The JOIDES Resolution is the U.S. research ...
Cached Biology News:SVOX Acquires Speech Processing Unit of Siemens AG, Expands Into Speech Recognition and Speech Dialog 2Cutting salt isn't the only way to reduce blood pressure 2Ocean research officials hail completion of modernization for US scientific ocean drilling vessel 2
(Date:7/10/2014)... , July 10, 2014 /PRNewswire-iReach/ -- Tute ... interpretation, today announced an agreement with Lineagen, ... for Lineagen,s NextStep Dx PLUS.  Lineagen, ... and neurological disorders, currently offers FirstStep Dx ... testing service used by healthcare providers as ...
(Date:7/10/2014)... the fight against terrorism with the creation of a ... the use of light and special glass fibres. , ... Chemical , the researchers describe a novel optical fibre ... as 6.3 ppm (parts per million). It requires an ... explosives detection has involved looking for metals that encase ...
(Date:7/10/2014)... Columbia researchers have observed the fractional quantum Hall effect ... of matter can be tuned by an electric field. ... occur when electrons confined to thin sheets are exposed ... collective behavior where thousands of individual electrons behave as ... this effect is well established, many details of this ...
(Date:7/10/2014)... researchers at the University of Illinois at Urbana-Champaign ... the interplay of spin and heat at the ... spintronic devices for data storage and information processing. ... as spin-angular momentum. In a typical charge current, ... spin current," explained David Cahill, a professor of ...
Breaking Biology Technology:Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 2Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 3Tute Genomics Platform Selected to Provide Clinical Interpretation for Lineagen's NextStepDx PLUS Next-Generation Sequencing-Based Diagnostic Test 4Detecting trace amounts of explosives with light 2Columbia researchers observe tunable quantum behavior in bilayer graphene 2Columbia researchers observe tunable quantum behavior in bilayer graphene 3University of Illinois study advances limits for ultrafast nano-devices 2
... in the late 1970s with the first IPOs taking place in ... than 25 years old. , ,An interesting article in Genetic ... that most industry cycles run about 50 years until they mature. ... 50-year cycle. A new industry of significance usually produces an industrial ...
... In a long-planned departure from its traditional focus, high-end ... the U.S. Army for development of two different products. ... that it has secured $2.2 million in federal contracts ... with the Armys Research, Development and Engineering Command (CERDEC) ...
... Mike Strand has always kept his eye out ... Delta Technology and Cray Research, Strand took a stride forward ... company based out of his home dealing with barcode software. ... had expanded into a worldwide enterprise bringing in close to ...
Cached Biology Technology:Biotech industry reaches midpoint in 50-year maturation cycle 2Biotech industry reaches midpoint in 50-year maturation cycle 3Biotech industry reaches midpoint in 50-year maturation cycle 4Biotech industry reaches midpoint in 50-year maturation cycle 5SLE of Eau Claire lands $2.2 million in federal contracts 2SLE of Eau Claire lands $2.2 million in federal contracts 3Online Kiosks founder Mike Strand uses contest to screen new business plan 2Online Kiosks founder Mike Strand uses contest to screen new business plan 3
... workstation is the simplest, easiest-to-use system ever ... liquid handling capabilities,into their labs, or groups ... routine applications on a separate instrument. Plate-handling ... even when you have thousands of ...
... has generated hybridomas against a large ... initiation, you are provided with personalized ... cell lines developed by Covance remain ... typical hybridoma development project has four ...
... cDNA normalization is essential for ... using high-throughput approaches, such as EST ... Most normalization methods are not well ... cDNA. The Evrogen TRIMMER kit, though, ...
... ENGENISTM (Entire Gene/cDNA or Isolated Sequence) siRNA ... quantitative approach for evaluation of a potential ... an efficient target for RNA interference (RNAi). ... not perfect, leaving the probability of selected ...
Biology Products: