Timothy K. Hartz
Timothy K. Hartz
University of California
Dept. of Plant Sciences
One Shields Avenue
Davis,
CA
USA
95616-8683
Email:
tkhartz@ucdavis.edu
Papers:
Humic Substances Provide No Consistent Agronomic Benefit in Representative Field Soils
Reducing the Environmental Water Quality Impact of California Lettuce Production
Nitrogen Requirements for Lettuce Production