11th Security Fee. Special valid on selected round-trip flights departing JFK to Rome for travel up to 4/30/2009. Travel must be completed by 5/1/09. Offer not valid 12/16/08-12/24/08; maximum stay of 90 days. Rome Revisited package prices are per person based on double occupancy....
With the rapid development of cities and the expanding population, food security has increasingly become an issue of widespread concern. As an important aspect of land-use and land-cover mapping, crop mapping also plays an important role in watershed modeling, as well as crop modeling [1,2,3...
Because the United States is a major producer and exporter of wheat to the world market, accurate and timely forecasting of wheat yield in the United States (U.S.) is fundamental to national crop management as well as global food security. Previous studies mainly have focused on developing ...