Sentences with phrase «plateauing grain yields»
Producing enough grain to make it to the next harvest has tested farmers ever since agriculture began, but the challenge is deepening as new trends — falling water tables, plateauing grain yields, and rising temperatures — make it difficult to expand production fast enough.
http://www.earthpolicy.org/ Not exact matches
In addition to some of the most severe soil erosion in human history, we are also facing newer trends such as the depletion of aquifers, the plateauing of grain yields in the more agriculturally advanced countries, and rising temperature.