test
http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1416&context=greatplainsresearch&sei-redir=1&referer=http%3A%2F%2Fwww.google.com%2Fsearch%3Fhl%3Den%26source%3Dhp%26q%3Dwinter%2Bwheat%2Bemergence%2Bgdd%26gbv%3D2%26oq%3Dwinter%2Bwheat%2Bemergence%2Bgdd%26gs_l%3Dheirloom-hp.12...7160.44263.0.47858.26.25.0.1.1.0.341.5643.0j7j15j3.25.0...0.0...1c.1.Yz_jgYvaQKI#search=%22winter%20wheat%20emergence%20gdd%22