Nitrogen, Phosphorus and Potassium Uptake Patterns of Fresh-Market Onion Production in Southern California.
Andre S. Biscaro, University of California Cooperative Extension, Ventura, CA, Michael D. Cahn, University of California, Cooperative Extension, Salinas, CA, Richard Mitchell Smith, Purdue University, Jonesboro, AR and Tim K Hartz, Formation Environmental LLC, Sacramento, CA