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, […]
October 21, 2017
Suntory’s Blue Rose ‘Applause’ Now Available to U.S. Fl…
‘Applause’ was originally introduced to the U.S. in 2011, and since then it was been successfully tested and selected to meet new market conditions.
October 20, 2017
Luxflora Paris Trip Offers Insights on Trends Shaping H…
Each year, Luxflora hosts an international trip that allows participants to gain insights on trends and gather inspiration that ultimately will shape and support our industry in many ways. This year’s event took the group to Maison & Objet and Design Week in the City of Lights – Paris, France.
October 19, 2017
AmericanHort’s Main Priorities After Impact Washi…
Now that Impact Washington is over, AmericanHort, with industry support, is looking to continue its focus on tax reform, labor reform, and research and innovation.
October 18, 2017
Leafy Greens Grower BrightFarms Building New 120,000 Sq…
The operation will provide locally grown salad greens and herbs to supermarkets in the Cincinnati, Dayton, and Columbus, OH, metropolitan areas.
October 17, 2017
Petal It Forward Event a Hit for Both Industry Members …
Check out how this year’s Petal It Forward event brought smiling faces to people across the country, including one personal story.
October 17, 2017
14 New Shrubs With Fringe Benefits
What’s popular with shrubs? Consumers want varieties that will give them more return on their investment, in terms of long-lasting blooms and multi-season appeal that lasts from spring until fall and at times stretches into the winter months. Here are 14 new varieties of shrubs and sub-shrubs to consider for your product mix in 2018.
October 17, 2017
NatureFresh Farms Uses Pest-Detecting Dog to Sniff out …
Knowing that many worker dogs are trained to recognize and discover scents associated with drugs or bombs, the company figured it was possible to train a dog to recognize pepper weevil.
October 17, 2017
Rose Rosette Update: Research into Detection and Manage…
Halfway through a five-year, $4.6 million grant to combat rose rosette disease in the U.S., a national research team is encouraged by the amount of information learned, but admits having a way to go before finding how to overcome the deadly problem.
October 17, 2017
Production Technology Conference Tour Attendees See Tec…
AmericanHort’s Production Technology Conference in Dallas, TX, kicked off on Monday, Oct. 10, with a tour of three local production facilities.
October 17, 2017
How One Grower is Battling Botrytis with a New Biologic…
CropKing in Lodi, OH, recently began using a new beneficial fungus in its fight against Botrytis in its greenhouse tomatoes. So far, the results have been promising.
October 16, 2017
TTA Introduces New Transplanter Suited for Smaller Grow…
The PackPlanter S has 16 grippers and a capacity of 10,000 to 20,000 plugs per hour in a small frame.
October 14, 2017
PlantPeddler Hosting Poinsettia Variety Day in December
The event will feature side-by-side comparisons of more than 100 commercial and pre-released varieties from seven breeders.
October 13, 2017
Researchers Continue to Keep Close Tabs on Whitefly
Dr. Lance Osborne of the University of Florida and Dr. Cindy McKenzie of USDA’s Agricultural Research Service are evaluating insecticide efficacy and the impact of product rotations on whitefly biotype populations.
October 12, 2017
How to Deal With Common Greenhouse Maintenance Issues
The most common problems often come from a lack of cleanliness and faulty equipment. Here are a number of tips you can follow in each of these areas.
October 11, 2017
Bayer’s New Head of Environmental Science Has Roots in …
Mark Schneid says one of the biggest challenges the industry faces is the constantly evolving customer — particularly among millennials.