Assertion: kg p | /r/ObjectUse | used in china
Facets:
Source sentences:
text: According to a 2009 study by renowned soil scientist Pedro Sanchez, the average Kenyan farmer uses just 8 kg of phosphorus and 7 kg of nitrogen per hectare, far less than the 14 kg P and 93 kg N used in the US and the staggering 92 kg P and 588 kg N used in China.