May 18, 2017
How to Increase Branching and Flower Bud Production of Christmas Cactus
Based on research completed at North Carolina State University, here are some methods for increasing branching and flower bud production of Christmas Cactus (Schlumbergera bridgessii).
July 23, 2014
Liming Requirements And pH Modification For Pine Wood Chips As An Alternative To Perlite
In the last of a four-article series highlighting the production and use of pine wood chips as aggregates in greenhouse substrates, the researchers found growers do not need to adjust their production practices when 20 percent pine wood chips are used as a perlite replacement.
June 16, 2014
Pine Wood Chips As An Alternative To Perlite In Greenhouse Substrates: Fertilization Requirements
This is the third article of the four article series highlighting the production and use of pine wood chips as aggregates in greenhouse substrates. We found growers do not need to adjust their production practices when 20% pine wood chips are utilized as a perlite replacement.
May 14, 2014
How Pine Wood Chips In Substrates Affect Plant Growth Regulators
This is the second article of the four article series highlighting the production and use of pine wood chips as aggregates in greenhouse substrates.
April 5, 2014
Ethephon Is A Cost-Effective Option For Improved Plant Structure, Preventing Early Flowering And Controlling Excessive Growth
Ethephon is an excellent and cost effective option for improving plant structure, preventing early flowering, and controlling excessive plant growth. It is easy to see why Ethephon has become an essential component of the floriculture PGR toolbox.
December 30, 2013
Basics & Beyond: Fundamentals Of Phosphorus Nutrition
Phosphorus is an essential element, after all.
April 1, 2013
How PGRs Make You Money
How do you know when it is cost-effective to use plant growth regulators (PGRs)? Certainly they can be used to regulate plant growth and size, but that is just one part of the equation. Chemical costs are the primary concern to growers. There is certainly a variable cost associated with using plant growth regulators. The growth controlled with PGRs allows for tighter plant spacing. Thus, there is less square foot per week cost, and a lower fixed cost assigned to the pot. So, we need to evaluate if the fixed cost savings is greater than the variable cost of the PGR application. To provide an example, let’s use geraniums grown in a 4-inch square pot. This geranium crop will be grown for 10 weeks. For four weeks, plants will be placed pot tight at 4 inches by 4 inches. For the final six weeks, the plants will be spaced at […]
January 6, 2012
Height Control For Easter Lilies
Flurprimidol drenches have been shown to successfully control height of oriental lilies and Dutch bulbs such as hyacinth, narcissus and tulips, but there is no data that shows how effective flurprimidol drenches are on Easter lilies. Researchers decided to find out.
September 15, 2010
Preventing Plug Stunting
We have all heard the cliché doctors make the worst patients. Well, sometimes greenhouse growers make the worst horticulturists. We have learned over the years just how far we can push our plants. A case in point is plugs. They often arrive in large batches, usually when there are not enough folks to transplant them or, more likely, when there is not enough space to put finished plants. Of course, when the season is busy, more plug shipments arrive before we have a chance to finish potting the previous ones. The result: Plugs sit on the bench for days or weeks, continuing to grow. They can become quite leggy, sometimes nutrient deficient or, in worse cases, die. But we still need the finished plants. So we pot them eventually and often, they never produce a quality plant. So can anything be done to produce high-quality plants from these plugs? We […]
July 27, 2010
Using The Plant Growth Regulator Calculator
Rounding out the GroCALC software package, PGRCALC is the third and final program that has been updated in the past few months. The calculator has been updated from a Microsoft Excel-based program to a Web-based application that does not require a user download. If you are currently using PGRCALC, you know how this tool can give you confidence in your PGR applications. If you are not familiar with PGRCALC, you will soon realize how easy and quick it is to calculate the amounts of a PGR and water you need to mix for any application. PGRCALC will calculate the amount of an individual PGR product to add to a volume of water to obtain a desired concentration. In addition, it will also calculate the cost of the total application and cost per pot. Getting Started To use the new version of PGRCALC, point your Internet browser to www.nhfloriculture.com. You will […]
April 15, 2010
Using The Alkalinity Calculator
If you have tried to use the Greenhouse Media Lab Acid Addition Calculator, the alkalinity calculator from Purdue University and North Carolina State University in the last couple years, you may be disappointed that it no longer worked. The problem lies in the fact that when Microsoft updated Excel, the alkalinity calculator was no longer compatible with the program’s latest version. Fortunately, a solution was developed with the support of the Fred C. Gloeckner Foundation. If you’ve never used the alkalinity calculator, then welcome to the redesigned alkalinity calculator, AlkCALC. AlkCALC is an application that easily calculates the amount of nitric, phosphoric or sulfuric acid required to neutralize alkalinity in your irrigation water to a desired level. In addition, it will determine the amount of nutrients added by acid injection and the cost of your specific acid injection needs. Getting Started Unlike previous alkalinity calculators, AlkCALC does not need to […]
June 18, 2008
Calculating Crop Costs
There is no way around it: Profit = Revenue–Expenses. When we need to increase, or more commonly maintain, profit, the only way to do so is by increasing revenue or decreasing expenses. The standard reaction is to target the most obvious expenses–labor, fuel costs, plant materials or drop unprofitable crops and product lines. While that sounds simple enough, every business owner knows that actually doing this is much more difficult and time consuming than it seems. The solution–make your best guess as to which expenses can be reduced and which crops are unprofitable. Even in this day when a large number of tools are available to help analyze a business’s finances, a surprisingly large number of business owners operate from instinct and lack numbers upon which to make important decisions. So where to start? There are a number of ways to look at a business’s expenses and crops. The simplest method, […]
August 17, 2017
Shinoda Scholar of the Year is Aiming for a Long Career…
Gage Willey, a senior at Cal Poly San Luis Obispo, is working toward a Bachelor of Science degree with a concentration in Greenhouse/Nursery Production. His goal is to own a production and retail nursery.
August 16, 2017
Looking to Host an Intern This Year? Consider AFE’s Sch…
The American Floral Endowment is accepting applications for its Vic and Margaret Ball Intern Scholarship Program and Mosmiller Intern Scholarship Program until Oct 1. Interested companies can apply anytime to become a host employer.
August 15, 2017
Greenhouse Environmental Sensor is Truly “Out of This W…
Delta-T’s multi-parameter WET Sensor has been used by Chinese astronauts aboard the Tiangong-2 Space Lab to cultivate lettuce plants within the weightless atmosphere.
August 15, 2017
Griffin Becomes Newest Distributor for Master Nursery G…
The agreement allows Griffin to join Master Nursery’s network of more than 150 supplier partners, while giving Master Nursery access to new product and service options for member businesses in the Midwest, Rocky Mountain, and Pacific Northwest regions.
August 15, 2017
AmericanHort Has a New Director of Government Affairs
Tal Coley, a U.S. Air Force veteran who has an extensive background in issues advocacy, will play an active role in AmericanHort’s upcoming Impact Washington event in September.
August 15, 2017
How to Know Which Plastic Containers You Can Recycle
Michigan State University’s Garrett Owen offers tips to help you properly dispose of plastic containers, flats, and trays.
August 15, 2017
Ornamental Seed Scientist Francis Kwong Dies at Age 65
Kwong was most recently the Director of Seed Technology for PanAmerican Seed, and his research was instrumental in the development of calibrachoa, angelonia, and other plants.
August 15, 2017
Why Consumers May Be More Interested in Plants Than You…
A visit to a local lavender event is a reminder that when you tap into something consumers are excited about and want to experience, the reward can be long-lasting,
August 14, 2017
Canadian Greenhouse Conference Features Focus on Techno…
This year’s Canadian Greenhouse Conference kicks off on October 4, and there is no shortage of presentations devoted to how growers can implement new technology in their greenhouses.
August 14, 2017
How Young’s Plant Farm Invests in New Structures and Eq…
The Auburn, AL-based Top 100 Grower operation is improving its production infrastructure so it can continue to efficiently produce quality plants and keep up with demand.
August 11, 2017
Greenhouse Bench Systems Designed to Handle Any Space
HOVE bench systems from HOVE International can accommodate multiple levels while allowing for run-off water collection.
August 10, 2017
New Sensors Can Help You Manage Your Greenhouse Crop 24…
The wrong environmental conditions in your greenhouse can potentially lead to significant crop loss. Here’s how sensor technology manufacturers are helping you safeguard your greenhouse.
August 9, 2017
Lighting Technology Under the Microscope at Production …
Here’s a sneak preview of three lighting trends that will be discussed by Erik Runkle at the Production Technology Conference.