Mid term Prediction on Meteorological Factors for Wheat Powdery Mildew (Blumeria graminis) in Hebei Province Based on Fisher Criterion
SI Li li1, YAO Shu ran2, YAN Feng1
Chinese Journal of Agrometeorology . 2013, (03): 338 -341 .  DOI: 10.3969/j.issn.1000-6362.2013.03.014