The 2012 ASHS Annual Conference

Allen V. Barker

Professor
University of Massachusetts
Plant, Soil, and Insect Sciences
Plant & Soil Science Dept
Bowditch Hall Box 30910
Amherst, MA
USA 01003-0910
Email: barker@pssci.umass.edu

Papers:
Nutrient Density in Lettuce Cultivars Grown with Organic or Chemical Fertilization with Elevated Calcium Concentrations Zinc Accumulation in Lettuce Cultivars Grown with Organic or Hoagland Based Nutritional Regimes The Effect of Biochar on Sweet Corn Production and Nitrate Leaching Mineral Nutrient Density of Tomato in Response to Cultivar Selection and Nutritional Regimes