Relying heavily on subsidies, it developed
an extensive irrigated agriculture based largely on its deep fossil aquifer.
«In order to grow enough corn, we've been pushing to the fringes, into land that needs
extensive irrigating,» says Otto Doering, professor of agricultural economics at Purdue University.
Not exact matches
Among these are shifting from conventional tillage to minimum - till and no - till, the more
extensive use of cover crops, the return of all livestock and poultry manure to the land, expansion of
irrigated area, a return to more mixed crop - livestock farming, and the forestation of marginal farmlands.
Among these are the shift to minimum - till and no - till farming, the more
extensive use of cover crops, the return of all livestock and poultry manure to the land, expansion of
irrigated area, a return to more mixed crop - livestock farming, and the forestation of marginal farmlands.
Even though there is not a long list of native plants for use in
extensive green roofs (unless one plans to frequently
irrigate), there are a few to choose from.
Among these are the shift to minimum - till and no - till farming, the more
extensive use of cover crops, the return of livestock and poultry manure to the land, expansion of
irrigated area, a return to more mixed crop - livestock farming, and the forestation of marginal land.