Since no additional prime agricultural lands are available in the world and use of marginal lands in most cases creates environmental problems, the future demands for food will have to come from increased productivity and improved conservation and utilization of the foods produced.
(no additional prime agricultural lands; are; available; L:in the world) (the foods; produced; ) (the future demands for food; to come; from increased productivity and improved conservation and utilization of the foods)
no additional prime agricultural lands the foods the future demands for food
are produced to come
available L:in the world
from increased productivity and improved conservation and utilization of the foods