豫西地区不同类型农田化肥增产效益及增产潜力研究

毛军需,徐晓锋,石兆勇,苗艳芳

Impacts of Soil Fertility to Fertilize’s Yields Increasing Benefits and Potentiality in Yuxi area of Henan Province

中国农业科学 . 2007, (7): 1439 -1446 . DOI: 10.3864/j.issn.0578-1752.au-2007-00213