Agriculture's next revolution -- perennial grain -- within sight
Date: 28.6.2010
Earth-friendly **perennial grain crops**, which grow with less fertilizer, herbicide, fuel, and erosion than grains planted annually, could be available in two decades, according to researchers writing in the current issue of the journal **Science**.
Perennial grains, say the authors, have **longer growing seasons** than annual crops and **deeper roots** that let the plants take greater advantage of precipitation.
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