Allen V. Barker
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:
Calcium Deficiency in Marigold
Manganese Toxicity in Marigold as Affected by Calcium