Fertilizer could be too much of a good thing for the world's grasslands. According to a study that monitored grasslands at 41 sites on five continents, fertilizer overuse results in wilder swings in productivity that could intensify the harm caused by drought.
Fuente : http://www.eurekalert.org/pub_releases/2014-02/uon...
Fuente : http://www.eurekalert.org/pub_releases/2014-02/uon...