Building Soils for Better Crops, Third Edition

Sources

Overview

Mikkelsen, R., and T.K. Hartz. 2008. Nitrogen sources for organic crop production. Better Crops 92(4): 16–19.

OMAFRA (Ontario Ministry of Agriculture, Food, and Rural Affairs). 1997. Nutrient Management. Best Management Practices Series. Available from the Ontario Federation of Agriculture, Toronto, Ontario, Canada.

Parnes, R. 1990. Fertile Soil: A Grower’s Guide to Organic and Inorganic Fertilizers. Davis, CA: agAccess.

Torstensson, G., H. Aronsson, and L. Bergstrom. 2006. Nutrient use efficiencies and leaching of organic and conventional cropping systems in Sweden. Agronomy Journal 98: 603–615.

van Es, H.M., K.J. Czymmek, and Q.M. Ketterings. 2002. Management effects on N leaching and guidelines for an N leaching index in New York. Journal of Soil and Water Conservation 57(6): 499–504.

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