As commodities trade globally, often using the US dollar as a medium, price movements in the US dollar have important consequences for fertilizer producers. A weaker US dollar is often positive for fertilizer companies. On the other hand, a higher US dollar is often viewed as negative.

http://finance.yahoo.com/news/why-us-dollar-affects-fertilizer-182218614.html
UUP fertilizer taper 等的关系。

http://finance.yahoo.com/news/why-quantitative-easing-us-means-202302239.html
Why quantitative easing in the US means easing around the world

http://finance.yahoo.com/news/why-india-economy-next-test-213702045.html
Why India’s economy will be the next test for fertilizer stocks

http://finance.yahoo.com/news/why-fed-tapering-hurt-fertilizer-222302779.html
Why Fed tapering would hurt fertilizer producer sales