Published Articles

By Fred Hulme, Ph.D., Published in GPN Magazine, August 2014
How can using controlled-release fertilizers help growers provide healthier, more beautiful plants for end users?
By Fred Hulme, Ph.D., Published in Greenhouse Grower, July 2008
Poinsettia season will soon be upon us, so it is worthwhile to review the nutritional needs of poinsettias and the corresponding fertilizer practices that will maximize crop quality. From a nutritional standpoint, poinsettias can be a rather finicky crop that challenges even the best growers.
By Fred Hulme, Ph.D., Published in Greenhouse Product News, June 2012
Ornamental growers have long struggled with managing growing media pH. Maintaining correct growing media pH is critical for many crops especially if production time is greater than six to eight weeks.
By Fred Hulme, Ph.D., Published on, January 2012
By employing best nutrient management practices, growers can use fertilizers as efficiently and effectively as possible to achieve both high-quality growth and profitable return on investment with minimal environmental impact.
By Fred Hulme, Ph.D., Published in Greenhouse Product News, October 2011
The cost and supply of fertilizers designed for greenhouse use are intertwined with a number of variables, including global markets, transportation logistics, energy costs and more.
By Fred Hulme, Ph.D., Published in Greenhouse Management, January 2011
Greenhouse growers are working harder than ever to remain profitable. This quest for profitability has caused many growers to scrutinize their production systems, looking for ways to save money on materials and labor. Recent university and grower trials have shown that a change in fertilizer practices may offer growers a real chance to cut costs, product high quality crops and be more environmentally friendly.
Questions about using Osmocote® in covered production areas with answers by Dr. Fred Hulme.
Questions about selecting the right CRF for your greenhouse with answers by Dr. Fred Hulme.
By Dr. Mary K. Hausbeck, Michigan State University
Pathogen resistance is a real threat to the most successful of disease management programs.
By Fred Hulme, Ph. D., Published on, June 2011
When excess nutrients leach from nursery and greenhouse fertilizers into the environment, the results can be costly on many levels. Aside from negative environmental impact, bad publicity (and even legal liability for your growing operation), excess leaching can lead to inconsistent crop quality and reduced profitability.
By Fred Hulme, Ph.D., Published in GMPro, December 2006
The greenhouse industry has some folklore regarding plant nutrition and fertilization that is often quoted and rarely challenged. The origin of these myths may be from archaic information that is no longer valid or from misinterpretation of data. As crops, growing systems and management techniques change, fertilizer practices must be modified.
By Fred Hulme, Ph.D., Published in GPN, August 2008
Despite a longtime resistance to greenhouse use, controlled-release fertilizers are perfect for these protected environments, where growers can monitor and change temperature better than outdoors.
By Fred Hulme, Ph.D., Published in Livescapes - Landscape Management, Jan/Feb, 2008
By following these suggestions for fertilizers and rates, you can provide your clients with mixed containers that provide consistent beauty to their landscapes throughout the growing season.
By Fred Hulme, Ph.D., Published in GrowerTalks, November 2009
During these tough economic times, many growers are trying to sustain their businesses by rethinking growing practices and lowering production costs. So, what's a reasonable strategy for reducing your fertilizer costs?
By Fred Hulme, Chris Buchheit, Scotts-Sierra Horticultural Products/ICL
The Fusion Value Calculator is available to help growers explore various scenarios to determine if there is a place for Fusion Technology in their operations. This article walks you through how the calculator works in it's easy 3-step process.