Half century crop-specific manure management history in the contiguous United States: manure nitrogen and phosphorus application rate, timing, and method

Cao, Peiyu

Half century crop-specific manure management history in the contiguous United States: manure nitrogen and phosphorus application rate, timing, and method

Peiyu Cao¹, Bo Yi¹, Yan Zhang^2,3 and Chaoqun Lu⁴, (1)Iowa State University, Department of Ecology, Evolution, and Organismal Biology, AMES, United States, (2)Northwest A&F University, State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Yangling, China, (3)Northwest A&F University, College of Natural Resources and Environment, Yangling, China, (4)Iowa State University, Department of Ecology, Evolution, and Organismal Biology, Ames, IA, United States