4 Tips For Using CRF In the Greenhouse

Using CRF in the greenhouse isn’t quite as straightforward as using it in a nursery setting. However, by following these tips, growers can effectively implement CRF in the greenhouse:

1. Remember, root zone temperature drives CRF nutrient release. Thus, CRF will release nutrients more quickly as temperatures rise. It’s important to consider this carefully when selecting products and rates. Everris recommends homogenous, complete, 100-percent-coated products (e.g. Osmocote Plus) for greenhouse production.

2. Don’t trust bag label rates for greenhouse crops. These rates are generally intended for container nursery use, and rates for greenhouse crops should be much lower.

3. If you incorporate CRF into growing media, you need to use the mix up in two to four weeks. The CRF will begin to release nutrients as soon as it is blended into the soil mix. Quick use of the media will ensure that soluble salts don’t build up in the mix and that the crop has full access to nutrients from the CRF.

4. It is more difficult to monitor growing media with CRF mixed into it. If you’ve selected the proper rates, EC in the root zone will actually be lower than the EC to which you’ve become accustomed if you’ve only used WSF in the past. Visual assessment of crops and tissue analysis are more useful testing tools, especially when the fertilizer program consists entirely of CRF.

Leave a Reply

One comment on “4 Tips For Using CRF In the Greenhouse

Latest Stories
Petal It Forward 2017

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.

Read More

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.

Read More
NatureFresh Chili Dog

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.

Read More
Researchers Study Rose Varieties

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.

Read More
Seville Production Line

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.

Read More
Botrytis Symptoms on Leaves

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.

Read More
TTA PackPlanter S-2

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.

Read More
Karen Reardon, RISE

October 15, 2017

Karen Reardon of RISE Honored by CropLife America

CropLife America presented Reardon with its highest staff award for her successful effort to defend against the ban of pesticide use on private property in Maryland.

Read More

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.

Read More
Whitefly adult

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.

Read More
GVZ Glasshouses

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.

Read More
Mark Schneid

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.

Read More
TreetownUSA

October 10, 2017

Houston-Based TreeTown USA Acquires Village Nurseries

With the addition of the new West Coast division, which will continue to operate under its trade name of Village Nurseries, TreeTown USA will now encompass 16 farm locations throughout California, Texas, and Florida, with more than 4,000 acres in production.

Read More

October 10, 2017

Sharpen Your Skills in Cost Management and Profitabilit…

The University of Florida is offering a new online course on costing and profitability. The course will take growers through the process of how to accurately evaluate cost of production, labor efficiency, pricing, and equipment investment decisions.

Read More

October 10, 2017

Coastal Callas Is a Dream Fulfilled for Founder Adrian …

Adrian Espinoza and his family founded Rancho Espinoza Inc. and Coastal Callas in California seven years ago with a mission and purpose to provide consistent quality and reliable supply of calla lilies to the marketplace.

Read More
Phillips, Ball Seed Partnership

October 10, 2017

Philips Lighting, Ball Seed Partner on Distribution

Ball Seed will now offer Philips GreenPower LED lighting as a complement to its liners, plugs, unrooted cuttings, seed, and prefinished products.

Read More
1B Filling trays for Transplanting Feature

October 9, 2017

Maximize Your Labor Efficiency When Sticking Plant Cut…

Transplanting unrooted cuttings into trays is one of the most labor-intensive activities in greenhouse production.

Read More
AgriNomix

October 8, 2017

Greenhouse Equipment Supplier AgriNomix is Expanding

In an effort to keep up with demand from growers venturing into automation, the company is adding almost 20,000 square feet of warehouses and offices.

Read More