Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Alpeorujo’s compost improves the properties of low-rainfall saline land

08.12.2008
Swiss chard and cabbage crops are the most recommendable in this land, for their tolerance to salinity.

Spanish researchers have proved that the combined use of the compost of the waste obtained from olive grinding (alpeorujo) and manure improve agricultural land properties with a high salt content.

The improvement is especially interesting for those soils irrigated with poor quality water in low-rainfall areas, such as the Mediterranean coast.

Researchers of the Centre of Pedology and Applied Biology of Segura (CSIC, Murcia – Spain) have confirmed that the use of compost of alpeorujo, the waste obtained from grinded olives, and manure, improve the properties of agricultural land with a high salt content. This fact is a consequence of the poor quality of irrigation water in low-rainfall areas, like those of the Mediterranean ecosystems.

The work has revealed that the use of organic matter in saline soils prevents the entry of sodium in the soil change complex, at the same time that the organic emendations “improve the ionic balance of the plants, boosting their development and production”, as CSIC researcher María del Pilar Bernal Calderón has informed Oleociencia (www.oleociencia.es). To this respect, the study has showed the double benefit of the application of organic compost: On the one hand, enriching and recovering land and, on the other hand, re-establishing the ionic balance, which gives rise to an improvement of plants’ mineral nutrition.

Likewise, Bernal has emphasized the importance of the selection of the vegetable species grown in land with a high saline content. In the study, the species which show a better tolerance to salinity, such as Swiss chard and cabbage, “respond clearly to the treatment with organic matter and, therefore, their cultivation is more recommendable than other species less tolerant to salts, such as tomato”, he asserts.

Applied research work

The research work, titled “Bioremediation with detox plants of saline and metal-polluted soils”, has been led by CSIC scientists María del Pilar Bernal and David J. Walter.

The research work has an immediate practical application as it has established the benefits of the use of organic matter in agricultural land with salinity problems, providing scientific reasons for soil and plants improvement.

On the other hand, this research has set the standard for the conservation of the natural resources through sustainable organic waste recycling and the recovery of polluted soils. These soils are usually located in low-rainfall areas, a fact that, combined with high evapotranspiration rates due to the high temperatures, gives rise to an important water shortage.

The results of Bernal and Walter’s research works have been published by scientific journals such as the Journal of Environmental Quality, Environmental Pollution, Ecosistemas, Ecotoxicology and Envionmental Safety, Chemosphere o Water & Pollution.

Antonio Marín Ruiz | alfa
Further information:
http://www.oleociencia.es

More articles from Agricultural and Forestry Science:

nachricht Climate change, population growth may lead to open ocean aquaculture
05.10.2017 | Oregon State University

nachricht New machine evaluates soybean at harvest for quality
04.10.2017 | University of Illinois College of Agricultural, Consumer and Environmental Sciences

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: Neutron star merger directly observed for the first time

University of Maryland researchers contribute to historic detection of gravitational waves and light created by event

On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...

Im Focus: Breaking: the first light from two neutron stars merging

Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.

Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....

Im Focus: Smart sensors for efficient processes

Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).

When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...

Im Focus: Cold molecules on collision course

Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.

How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...

Im Focus: Shrinking the proton again!

Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.

It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ASEAN Member States discuss the future role of renewable energy

17.10.2017 | Event News

World Health Summit 2017: International experts set the course for the future of Global Health

10.10.2017 | Event News

Climate Engineering Conference 2017 Opens in Berlin

10.10.2017 | Event News

 
Latest News

Terahertz spectroscopy goes nano

20.10.2017 | Information Technology

Strange but true: Turning a material upside down can sometimes make it softer

20.10.2017 | Materials Sciences

NRL clarifies valley polarization for electronic and optoelectronic technologies

20.10.2017 | Interdisciplinary Research

VideoLinks
B2B-VideoLinks
More VideoLinks >>>