March 4, 2018
Monitoring Carbon Dioxide in the Greenhouse
In addition to temperatures conducive to growth, light (photosynthetically active radiation; PAR, which was covered in part 3 of this series), water, and nutrients, plants also require carbon dioxide (CO2) for photosynthesis (carbon assimilation), which ultimately affects plant growth, vigor, and vegetable and cut flower yield. Carbon dioxide is an odorless and colorless trace gas. Today, ambient CO2 levels outdoors comprise 0.04% of atmospheric volume, or around 400 μmol∙mol−1 (or parts per million, ppm). Plants take up CO2 by diffusion, through small pores called stomates that are primarily located on the underside of leaves. The opening and closing of stomates can be influenced by leaf and air temperatures, light levels, humidity, water stress, CO2 concentration, and oxygen (O2) in the air and leaf. Thus, if any of these environmental or cultural factors used for photosynthesis are limiting in the greenhouse, plant growth and yield are less. Until recently, the vast […]
March 18, 2018
New Soil Amendment From Kemin Promotes More Efficient Nutrient Uptake and Plant Growth
Valena, a soil amendment sourced from a proprietary strain of Euglena gracilis (algae) rich in beta-glucan, is designed to support the growth of healthy and strong plants.
March 10, 2018
Segovis Fungicide Now Available to Ornamental Growers in California, New York
Segovis, from Syngenta, features a unique active ingredient that helps control downy mildew and Phytophthora.
February 20, 2018
Thrips Causing Headaches? New Research Shows Bio-based IPM Offers the Best Control
Dr. Rose Buitenhuis will present practical knowledge for growers to implement immediately during Biocontrols West Conference in San Diego, March 7-9.
February 15, 2018
Boxwood Blight, Seed Your Future Among Topics Receiving HRI Research Funding in 2018
The Horticultural Research Institute recently announced the 10 research projects that will receive funding in 2018 to investigate challenges and solutions in production, pest management, environmental stewardship, and business and marketing.
February 11, 2018
Bayer Has New Turf and Ornamentals Global Market Manager
Jose Milan will be focused on helping growers deal with regulatory issues, while promoting the environmental benefits the ornamentals industry offers.
February 2, 2018
Registration Now Open for AmericanHort’s 2018 Plug & Cutting Conference
This year’s conference will take place Sept. 17-19 in Charlotte, NC, and features educational sessions, a tour, and a hands-on workshop.
January 24, 2018
Engage Agro Now Doing Business as Belchim Crop Protection
For more than 30 years, Belchim has been providing agricultural customers internationally, including greenhouse growers, with more than 100 well-known products.
January 19, 2018
8 Opportunities to Help You Prepare for the Spring Growing Season
Three New England universities are collaborating on a weekly webinar program covering topics such as pest management, making the most of growing media, and more.
January 12, 2018
How pH and EC Monitoring Can Help You Manage Nutrition in the Greenhouse
In part two of this five-part series about the tools you need to keep track of your greenhouse environment, learn about the various methods for tracking pH and EC.
January 11, 2018
Plan Ahead for Spring Season in the Greenhouse by Following These Five Tips
In a recent report on the Michigan State University Extension website, Floriculture Educator Jeremy Jubenville presents a short list of ideas that can help growers nip predictable problems in the bud, so they have more time to focus on any new situations that arise.