JUJUY, Argentina (Reuters) - at an arid, lunar-like view at the sunny highlands of northern Argentina, South America's largest solar farm is rising, powered by funding and technique from China. Local officials said they had sought aid at home, the United States and Europe without success. latent lenders and partners, they said, were spooked by the project's size and the fiscal woes of Jujuy province, one of the poorest at the country.