Agricultural & Forest Sc.
Los nuevos sistemas de labranza aumentaron el escurrimiento del agua y la compactación del suelo. Es por esto que un grupo de especialistas elaboró un informe que propone estrategias en la programación de los sistemas de producción. El estudio, que fue retomado por instituciones de otros países, incluye consideraciones sobre políticas agropecuarias orientadas al desarrollo de una estructura agraria donde se vincule a los propietarios de los recursos con los productores.
Researchers warn that, due to the impact of agricultural expansion, in just three decades the rising of groundwater in the east of Salta might cause floods, soil salinization and unproductive soils. The problem is already present in San Luis and affects other countries, such as Australia and the United States. The team of scientists seeks alternatives for soil management which, without stopping the current productive tendencies, neutralize the effects of salinization.
Two biodigestors, aimed at advancing in the research and development of technologies for rural families and industrial activities, were installed in the School of Agronomy. The studies carried out are oriented to enable rural families and schools to turn, using the biodigestor, their domestic waste into fuel for different uses and to get biogas for industries from effluents. Some of these technologies are exposed in Technopolis (Tecnópolis).
The genome of two of the most widely used rhizobacteria for the formulation of inoculants to treat extensive and intensive crops was sequenced by a team of researchers. This information might have a great impact on the compression of mechanisms which operate in the interaction plant-rhizobacteria and explain foundations of the success of these microorganisms as the most important active principles of biological products used in agriculture in the last 30 years in Argentina.
In order to improve the performance of crops and solve the environmental problem of intensive cattle productions, a study confirmed the possibility of replacing inorganic fertilization in extensive crops by the manure generated in bovine corrals. The results of the first treatment tests showed a performance 160% higher than control crops.
It is cheap, environment friendly and it has a great behavior in drought conditions and it doesn’t have substitutes in the world market of inoculants. The development consists in a concentrate of bacteria with specificity on the cultivation of sunflower and the first results of its application showed increments in the performance of grains per hectare of up to the 21.50%.
Research proposes the election of environments with higher potential, controlled shepherding and fertilization for the management of the Pampa’s pasturelands. The technique consists in carrying out very intense shepherding at the end of the summer and leaving the lots rest at the beginning of autumn to promote the growth of pasturelands in winter. Then, the cows are taken to that place when calving starts.
The data emerges from the research of a multidisciplinary team. Regarding the exportable remainder, they calculate that it would be of 378,251 tons and the income of currency of 2,712 million dollars for the same year. The study was carried out for the Strategic Participative and Federal Agro alimentary and Agro industrial Plan, by means of which they seek to define the orientation of this sector for the next years.
The exponential growth of the sowing surface and the opening of forage barley exports to new markets are changing the logics of a crop whose historical destination had been the production of beer. The requirements to achieve the maximum performance seem to be less than for wheat. Researchers developed a series of fertilizing experiments in the province which had an important impact on the crops.
Scientists of the Center of Research and Technological Innovation (CENIIT) develop a program of olive crop management by means of biological controllers. In this way, they pretend to reduce the use of insecticides to achieve an ecologic olive grove, with added value in the production. The research is oriented to protect and enrich local olive culture, one of the productive activities characteristics of the province.
Single crop farming generates loss of biodiversity, that is why the insects which adapt better are those which survive and turn into plagues. But plants defend themselves liberating odors which attract the enemies of those insects. These “natural enemies” can help to decrease the use of pesticides. In a website, researchers created a register to identify the ones which are beneficial for this region.
January 28, 2013 - Agricultural & Forest Sc.
Researchers developed a system to use waste which otherwise constitute pollution points. By means of its application, they obtained more abundant harvest and more porous soils thanks to the irrigation of them with dairy effluents. Apart from mitigating pollution, the use of this waste permits lower cost fertilization.
“Omega 3”, “More proteins”, “More calcium” are some of the promises made by packed food companies. Researchers remark that the beneficial properties of some ingredients in food have to be certified by medical and epidemiological studies. Advertising tricks and the convenience of paying attention to nutritional labels.
December 31, 2012 - Agricultural & Forest Sc.
In an economic growth context, different ecologist sectors look for ideas which balance the development and conservation of spaces. The amount of protected areas for the conservation of biodiversity has increased significantly in recent times. The researcher Alberto de Magistris analyzes the situation and remarks the activities aimed at the protection of the flora and fauna.
It is diabrotica virgifera, a worm which eats corn and which in each campaign causes losses of a thousand million dollars in the United States. In the last years the problem also involved soy and spread to Europe with the possibility of reaching Argentina.