Charles A. Shapiro

1. Soil organic carbon: The value to soil properties
   2013/08/23 by Humberto Blanco-Canqui, Humberto Blanco‐Canqui, Charles A. Shapiro +5 · 1 citation
   Agricultural and Biological Sciences · Environmental Science · #Peatlands and Wetlands Ecology #Soil Carbon and Nitrogen Dynamics #Soil and Water Nutrient Dynamics
2. Nitrogen application influences the critical period for weed control in corn
   2003/05/01 by Sean P. Evans, Stevan Z. Knezevic, Stevan Z. Knežević +3 · 1 citation
   Agricultural and Biological Sciences · #Agronomic Practices and Intercropping Systems #Crop Yield and Soil Fertility #Weed Control and Herbicide Applications