January 26, 2012
How To Water More Efficiently
In Greenhouse Grower’s last issue, we discussed concepts of physiology of plant water uptake. In this article, we’ll discuss physics concepts pertaining to growing media’s capacity to store and release water. Then, we’ll apply the concepts to improve your watering practices. Pores In Growing Media Different growing media have different capacities to store and supply water to plants. These differences are due to pore spaces in growing media. Water obviously requires a space to stay. In a growing media, water is held in pore spaces. When growing media materials are mixed, pores form between their particles. Large particles form large pores and small particles form small pores. However, in a mixture of large and small particles, small particles occupy and fill the large pores between large particles. Water in large pores drains first and fast. Water comes out of such pores with little pressure. Small pores, on the other hand, […]
January 6, 2012
Water More Efficiently In The Greenhouse
Good quality water is becoming scarcer and more expensive. So naturally, greenhouse growers are looking for ways to reduce their water bills. More and more new products are coming to the market claiming to save water. However, growing media is still the most important factor in how successful a grower is when watering. A proper growing media actually helps growers save water. One way to save water is to make the growing media capture more of the water you are supplying. In this space, I’ll discuss how various growing media materials hold and release the captured water and how those water-holding and release characteristics affect your watering practices and, in turn, plant growth. Sales brochures on growing media often present the water-holding characteristic of a media as that media’s capacity to hold water so many times (e.g. eight to nine times) its weight. But you fill pots by volume. So […]
September 15, 2010
An Eye On Phosoporus Nutrition
Ask a vegetable transplant grower: What is a high-quality transplant? The response invariably is not the largest plant, but a plant grown in a controlled manner. The growth characteristics of desired transplants go like this: – Transplants should be small, so the grower can grow thousands and thousands more in the same space and time. – Transplants should be compact and sturdy, so they are easy to ship. Large, spindly transplants are unwieldy and get bruised during shipping. – Transplants should have good roots. A root ball formed by good roots makes it easy to pull or push transplants from transplant trays during transplanting. – Transplants should have a high root-to-shoot ratio. A larger root system, relative to shoot, supports the plant better after transplanting in the field. – Transplants should have somewhat smaller leaves. Large leaves lose more water, thus the transplant is more prone to wilting in the […]
February 23, 2018
Sunshine Farm & Gardens to Supply Plants for Beijin…
The West Virginia-based nursery will be shipping plants bred and grown in West Virginia to China that will be used in the landscape of several Olympic venues in the February 2022 Winter Olympics.
February 22, 2018
Plant Breeders Emphasize Importance of Patent Protectio…
According to members of MarkWatch, plant patents are an important protection for plant breeders and also provide an incentive for them to invest the time and money to innovate and develop new plant varieties.
February 20, 2018
Thrips Causing Headaches? New Research Shows Bio-based …
Dr. Rose Buitenhuis will present practical knowledge for growers to implement immediately during Biocontrols West Conference in San Diego, March 7-9.
February 20, 2018
12 New Poinsettias and Succulents for Holiday Sales, Cr…
Poinsettias and succulents are both in-demand products with today’s consumers. Here’s a look at some of the newer introductions available for retail sales in 2018 and 2019.
February 20, 2018
Top 100 Growers Survey for 2018 Is Now Open!
Operations with more than 400,000 square feet of environmentally controlled production are eligible to take the survey, which provides valuable market knowledge on how the nation's largest growers are innovating, sourcing labor, keeping up with demand, and setting trends.
February 19, 2018
All-America Selections Names Latest Variety Winner, Ann…
All-America Selections (AAS), the 85-year-young non-profit plant trialing organization, had a very busy month of January.
February 17, 2018
Gotham Greens Building Second Greenhouse in Suburban Ch…
The new $12.5 million, 105,000-square-foot greenhouse will be near the company’s first Chicago greenhouse, and will be a free-standing structure.
February 15, 2018
Boxwood Blight, Seed Your Future Among Topics Receiving…
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 14, 2018
Spring Meadow Nursery Furthers Its Mission of Giving Ba…
The Spring Meadow-Proven Winners Endowment Fund through the Horticultural Research Institute has now topped $800,000, with more scholarships coming in 2018.
February 13, 2018
Don’t Let Your New Year’s Resolutions Fade …
Stuff got real in 2017, and it caused many of us to stop and reflect on the current state of the world, and how we can impact change — or at least improve our own situations. Life is too short, and we work too hard, to not use the annual renewal as an opportunity to take stock of our own personal lives, businesses, and careers, and make the necessary adjustments that will allow us to work smarter and live better. Even if you have already given up on your resolutions, perhaps you can think of January as a trial month and make February the month when you really get to work on your goals. And while I know it’s a difficult month to start on some of these changes, since you’re already immersed in the busy spring season, I promise that if you take some time to evaluate your reality […]
February 12, 2018
Calling All Designers: Enter the International Plantsca…
Applications are being accepted through April 13 for AmericanHort’s International Plantscape Awards, which recognize achievements in interior plantscape design, installation, creativity, renovation, and innovation.
February 11, 2018
Bayer Has New Turf and Ornamentals Global Market Manage…
Jose Milan will be focused on helping growers deal with regulatory issues, while promoting the environmental benefits the ornamentals industry offers.
February 10, 2018
Applications for Dümmen Orange’s Dr. P. Allen Hammer Sc…
Named for Dr. P. Allen Hammer in acknowledgment of the contributions he has made to the floriculture industry, the scholarship is intended to extend Dr. Hammer’s legacy by supporting the next generation of floriculture students.
February 9, 2018
Garden Retailers at TPIE Highlight Their Favorite Produ…
A team of garden retailers once again participated in the 2018 Tropical Plants Industry Expo Cool Product Awards.