viernes, 29 de abril de 2011

Agricultura ecológica

Interesante y esperanzador artículo sobre la agricultura autosostenible y que no daña la tierra. Hay que ver si los grandes intereses económicos no atacan esta información, proveniente nada menos que de las Naciones Unidas.
El artículo explica como con técnicas ecoamigables de protección de suelo y cosechas se puede, no sólo disminuir el uso de químicos (fertilizantes y plaguicidas), sino también duplicar la producción en menos de una década.
plantas que repelen o matan las plagas de insectos, patos para desyerbar arrozales, etc.



Eco-farming can double food output by poor: U.N.
Many farmers in developing nations can double food production within a decade by shifting to ecological agriculture from use of chemical fertilizers and pesticides, a U.N. report showed on Tuesday.

Insect-trapping plants in Kenya and Bangladesh's use of ducks to eat weeds in rice paddies are among examples of steps taken to increase food for a world population that the United Nations says will be 7 billion this year and 9 billion by 2050.

"Agriculture is at a crossroads," according to the study by Olivier de Schutter, the U.N. Special Rapporteur on the right to food, in a drive to depress record food prices and avoid the costly oil-dependent model of industrial farming.

"Agroecology" could also make farms more resilient to the projected impact of climate change including floods, droughts and a rise in sea levels that the report said was already making fresh water near some coasts too salty for use in irrigation.
So far, eco-farming projects in 57 nations had shown average crop yield gains of 80 percent by tapping natural methods for enhancing soil and protecting against pests, it said.

Recent projects in 20 African countries had resulted in a doubling of crop yields within three to 10 years. Those lessons could be widely mimicked elsewhere, it said...leer más