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 Alkaline soil, sensible sensor
03.08.2017 | American Society of Agronomy

nachricht New 3-D model predicts best planting practices for farmers
26.06.2017 | Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign

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: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

Im Focus: Scientists improve forecast of increasing hazard on Ecuadorian volcano

Researchers from the University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science, the Italian Space Agency (ASI), and the Instituto Geofisico--Escuela Politecnica Nacional (IGEPN) of Ecuador, showed an increasing volcanic danger on Cotopaxi in Ecuador using a powerful technique known as Interferometric Synthetic Aperture Radar (InSAR).

The Andes region in which Cotopaxi volcano is located is known to contain some of the world's most serious volcanic hazard. A mid- to large-size eruption has...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

New thruster design increases efficiency for future spaceflight

16.08.2017 | Physics and Astronomy

Transporting spin: A graphene and boron nitride heterostructure creates large spin signals

16.08.2017 | Materials Sciences

A new method for the 3-D printing of living tissues

16.08.2017 | Interdisciplinary Research

VideoLinks
B2B-VideoLinks
More VideoLinks >>>