Production

UV-Transmitting Greenhouse Glazing

Materials used to glaze greenhouses and hoophouses have different transmission properties, including ultraviolet (UV) radiation. Approximately 4% of the sun’s radiation output is as UV, but since the ozone layer absorbs most UV-B (280-315 nm)... more »

Hemp Lighting

How Much Could Hemp Benefit from Supplemental Light?

While hemp may not be the cash crop many growers initially thought it would be, there are growers who are looking for ways to make it a profitable one. Numerous universities across the country are... more »

HRI tHRIve Series to Focus on Research

The Horticultural Research Institute is introducing a new web-based series featuring key research findings that help environmental horticulture businesses grow. The series, called tHRIve,  aims to help the industry flourish. These web-based offerings cover research that... more »

New Online DLI Calculator Available

SunTracker Technologies has developed a web-based free online calculator to predict monthly daily light integral (DLI) values for anywhere in the world, based on climate-based Typical Meteorological Year (TMY) weather records from over 2,100 weather stations worldwide.... more »

MSU Extension Offering Online Greenhouse Courses This Summer

Michigan State University Extension has announced that its award-winning Online College of Knowledge greenhouse series is set to take place this summer. The summer session includes four self-paced courses on: Abiotic Disorders of Greenhouse Crops, Greenhouse and... more »

Common Plant Production Acronyms

There are many acronyms used when discussing the production of crops in controlled environments. Acronyms are usually abbreviations formed from the initial letters of other words. We sometimes read or hear them without fully understanding... more »

Dramm Adds New Hires to Drammwater Team

Dramm recently announced the addition of Travis Ouradnik and Dan Teeters to its Drammwater Team. Travis Ouradnik joins Dramm after working in process design engineering for fertilizer equipment manufacturer... more »

Managing Irrigation by Measuring Leachate

Irrigation management is very difficult since there are numerous factors that influence the irrigator’s decisions. These factors include: the composition of the substrate, container size, plant species and size, plant nutritional requirements, weather, type and... more »

Latest Photos see all »

GPN recognizes 40 industry professionals under the age of 40 who are helping to determine the future of the horticulture industry. These individuals are today’s movers and shakers who are already setting the pace for tomorrow.
Ben Vliestra
Sidney Phelps
Jennifer Moss
Daniel Norden
W. Garrett Owen
Jessica Montgomery
Elien Peters
Rose Oberholzer
Nikki Melin

November 2020 GPN
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