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April 02, 2002
As promised in last month’s issue, the second of GPN’s two-part series on nutrient disorder shows you symptoms associated with additional deficiencies and toxicities of nutrients in greenhouse crops. When assessing nutritional status, remember the...
April 02, 2002
Forklifts are now available with special attachments to automatically place and space plant material. These trucks were initially developed in Holland for spacing pots, but recent product enhancements include attachments to allow their use with...
April 02, 2002
Enterprising cut flower growers are looking for new species and cultivars to provide their customers with different products and enhance sales. At the same time, upscale retail florists are discovering what European florists have known for years:...
April 02, 2002
Growers have little or no control over the conditions their products are exposed to once they leave the production facility. Environmental conditions likely to affect the performance of greenhouse crops during postproduction handling and sales...
April 02, 2002
Whether you’re a small, medium or large grower, it is important to remember the basics when choosing a structure for your situation. So, let’s review the fundamentals. Greenhouse Structures 101 Type of Crop. If you are hardening your crop, you...
April 02, 2002
“Change does not necessarily assure progress, but progress implacably requires change,” American historian Henry Steele Commager once said. A bearded Michigan man with jovial eyes and a thankful spirit captures the essence of this quote. His name is...
April 02, 2002
There are many new and different poinsettias being introduced; some think too many. Certainly, there are too many for one grower to produce. So how do you decide which cultivars to add to your selection? In the February issue of GPN, we reviewed the...
April 02, 2002
Fungal leaf spots are the most common and obvious diseases present during ornamental crop production. In most cases, they are easily noticed, and the temptation to guess specific causes is great. While certain characteristics may often be present...
March 18, 2002
During the mid 1990s, perennial departments saw ever-increasing sales, as gardeners rediscovered the more “traditional” plants from their grandparents’ generation. And perennials continue to be a growth market for growers across the country,...
March 18, 2002
What is the function of a growing structure? To control the environment or to assist the grower with manipulating healthy plant growth? Should the grower and the plants be forced to adapt to the environment the greenhouse provides, or should the...
March 18, 2002
I think this crop is a fantastic example of what our industry can do when it puts its mind to it. Six years ago, Angelonia angustifolia was a good little summer annual in the South, but unreliable both in hardiness and in vigor; it was also pretty...
March 18, 2002
Mechanization is normally defined as the replacement of a human task with a machine. Automatic transplanters are an example of mechanization. But, true automation encompasses more than mechanization. Automation involves the entire process, including...
March 18, 2002
Four sets of information are important when assessing the nutritional status of greenhouse crops and developing corrective procedures. First, determine irrigation water quality prior to developing the location. Do this during a wet and a dry period...
March 18, 2002
Commercial, field-grown cut flower production encompasses an incredible array of plant materials, including fresh, dried and preserved flowers, stems and berries. A large portion of fresh and dried cuts in North America is grown outdoors. Cuts are...
March 18, 2002
Debuting in 2001 with ‘Nu Blue’, ‘Burgundy Chrome’, ‘Shades of Pink’ and ‘Peach Glo’, the Ramblin’’ series’ determinate plant habit won’t take over the bench or garden bed,...
March 18, 2002
By the time you read this article, Easter lilies will have been planted, and flowering and height control are likely the major issues remaining for a successful conclusion of this crop. This year, Easter will be on March 31, 2002, and most plants...
March 18, 2002
The management of insecticide resistance is a somewhat controversial subject, and not because we are ignorant of the problem. In fact, scientists have a good handle on the mechanisms of pesticide resistance development. It is controversial because...
March 11, 2002
The only reason for a grower to automate is to improve their overall operation — an improvement that can be more than cost reduction. Improvements can also increase quality and response time. With all the equipment available in the marketplace today...
March 01, 2002
Two stars of the booming vegetatively propagated bedding plant market are petunias and calibrachoa. These closely related species offer consumers rapid growth, a wide range of colors and durability. The vigor of petunias and calibrachoa, while great...
March 01, 2002
With the introduction of so many new and unique poinsettia cultivars, it has become impractical for a grower to evaluate them all. In conjunction with the breeding companies, we organized these trials several years ago to screen the new...
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