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Documents Fang Et Al 2010 Water Resources and Water Use Efficiency in the North China Plain Current Status...

y ng ence of S na Agricultural Water Management 97 (2010) 1102–1116 Contents lists available at ScienceDirect Agricultural Wate .e l 1. Introduction The North China Plain…

Documents Effects of Soil Management on Soil Organisms Mary Barbercheck Dept. of Entomology Penn State...

Slide 1 Effects of Soil Management on Soil Organisms Mary Barbercheck Dept. of Entomology Penn State University Slide 2 In 1 teaspoon of agricultural soil there are… …