Nitrogen and phosphorus inputs of organic and chemical fertilizer applications in 2007 (source from the reference [24]).

Abstract

<p>Nitrogen and phosphorus inputs of organic and chemical fertilizer applications in 2007 (source from the reference <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0093727#pone.0093727-Zhu1" target="_blank">[24]</a>).</p