Nitrogen's Role In Lawn Health

April 5, 2018

 THE NECESSITY OF NITROGEN IN SUSTAINING YOUR LAWN CARE PROGRAM!  All plants require a certain balance of elements for proper growth and appearance. Among these balanced elements are the primary macronutrients, Nitrogen (N),   Phosphorus (P) and Potassium (K)   , which are needed in the greatest quantities. Fertilizers generally contain a variety of these elements to maintain a healthy lawn, so that it can successfully ward off weeds, insects and disease. In this article we will explore the primary macronutrient, nitrogen (N). Nitrogen is one of only two elements needed in lawns that directly shows a discernible impact in grass (   iron   is the other). Discover why nitrogen is such an important component of a lawn care maintenance program: 


 WHAT IS NITROGEN? 

Nitrogen or “N” is a primary plant nutrient that is a major component of various biological molecules, including amino acids, chlorophyll, co-enzymes, nucleic acids, and proteins. N is absorbed from the soil through the plant's root system. N is crucial for plant growth, but if applied incorrectly, it can be problematic (burning of lawn and/or leaching out of the root zone). When applying nitrogen, the goal is to supply plants with the proper amount and in a timely manner. 


 NITROGEN BENEFITS LAWNS BY: 

  • Stimulating shoot growth that aids in spring green-up; when applied in spring, nitrogen can help turf recover from environmental stresses and injury caused during the cooler season. Shoot growth is stimulated by nitrogen which in turn stimulates root growth. A modest application of N in the spring, and then timely spreading throughout the growing season will help fortify turf to better withstand the stress of summer. 
  • Aiding in the creation of chlorophyll;  chlorophyll is responsible for producing the green pigment in grass and is the compound by which plants use sunlight to produce sugars from carbon dioxide and water. N is known to give plants a deep green color following an application. 
  • Sustaining plant health by manufacturing amino acids;  amino acids make up the building blocks of proteins. Proteins allow turf to sustain life in two ways: 1) they act as structural units in the plant cell 2) they are the building blocks of enzymes which make biochemical reactions possible. 
  • Assisting in the production of genetic material;  nitrogen is a significant component of nucleic acids (DNA), the genetic material that allows plants to grow and reproduce. 

 HOW TO TELL IF A LAWN HAS A NITROGEN DEFICIENCY 

Nitrogen deficiencies can present themselves in a variety of ways. Here are seven signs to help you identify if your turf is nitrogen deficient: 

  1. Turf grass appears pale green because photosynthesis capacity has decreased, therefore interrupting food production. 
  2. Plant growth rate begins too slow. 
  3. Decreased tolerance from foot traffic as well as normal wear and tear, resulting in slower turf grass recovery. 
  4. Thinning and weakening of turf that exposes grass to an increased risk of weed invasion. 
  5. Decreased tolerance to environmental stresses like high temperatures, drought, and cool temperatures. 
  6. Increased susceptibility to lawn diseases such as dollar spot, red thread, crown rust and more. 
  7. Lawn density will decrease, causing runoff water to collect and then slowly disappear. 
  • NOTE: An overabundance of nitrogen will stimulate rapid shoot growth and diminished root growth, resulting in more frequent mowing in addition to depleting carbohydrate reserves, causing turf to be less stress tolerant. Excessive levels of N can result in thinner leaf tissue that loses moisture, creating the need for more water. Excessive N also increases the likelihood of tissue damage from an insect invasion or a microbial pathogen. Last, too much N can also lead to excessive   thatch.   

 BEST TIMES TO APPLY NITROGEN 

Timing is key when applying N to turf grass. N should be applied to avoid periods of significant plant loss and to provide proper N when turf needs it most. Good times for nitrogen applications include, early spring, late spring, early summer (before the stresses of high heat and drought hit) and early fall. 


It is important to conduct a soil test to determine the proper amount of nitrogen a lawn needs. A soil test will report a suggested nitrogen application program based on the results. 


Overall, the best method to make nitrogen available for plant uptake is by applying it regularly throughout the season with an effective   lawn care routine.  This includes proper fertilization , proper   soil amendments   management,   proper mowing   and   watering   , as well as proper   aeration   and   thatch  management


For professional fertilizers, humic and AMP-XC™ enriched products available, please visit TurfCare’s online Product Catalog.
 
For green industry professionals or others interested in ordering Turfcare products, please contact our Customer Service to find a distributor near you.

References:
http://blog-yard-garden-news.extension.umn.edu/2011/03/the-good-bad-and-interesting-roles-of.html 
http://www.cropnutrition.com/efu-nitrogen  
https://forestry.usu.edu/files-ou/HGH04.pdf 
https://www.clemson.edu/extension/hgic/plants/pdf/hgic1201.pdf 
https://www.sportsfieldmanagementmagazine.com/columns/turf-health/nitrogen/ 
http://gsrpdf.lib.msu.edu/ticpdf.py?file=/article/meentemeyer-whitlark-turfgrass-5-6-16.pdf 

The TURFReport Highlights:

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White Plains, NY – January 30, 2026 – Interoceanic Corporation (“IOC”) announced today that its affiliate Spring Valley USA (Spring Valley) , has acquired the blending and packaging assets and business of Turf Care Supply, LLC, a leading manufacturer and blender of turf and ornamental fertilizers as well as ice melt. The combination of Spring Valley and Turf Care Supply’s blending business, forms one of the largest independent lawn and garden fertilizer platforms in North America. The integrated business will have approximately 250 employees and will operate eight manufacturing and blending facilities across seven states, enabling coast-to-coast coverage of customers. By uniting two highly complementary companies, this acquisition creates a world-class turf & ornamental supply company positioned to deliver enhanced value to both professional and retail customers. “This acquisition is a transformative step for our organization,” said Elio Mazzella , President of IOC and Spring Valley. “By bringing Turf Care Supply into the IOC family, we are significantly expanding our reach and capabilities in serving the lawn and garden industry. The combined company will have an unrivaled production footprint and product portfolio, which means we can offer our customers faster service, greater efficiency, and innovative solutions on a national scale. Our goal is to build a world-class platform that blends the strengths of both businesses – the supply chain efficiencies of the combined business and the family-business values – will drive growth for our customers and vendor partners.” With the closing of the transaction, Turf Care Supply, LLC will be renamed Allied Nutrients and continue to manufacture leading enhanced efficiency fertilizers (“EEF”) out of its Martins Ferry, Ohio facility. Mark Mangan, President of Allied Nutrients, commented, “we want to thank our long-time employees that will be joining the IOC family and wish them well. We have known the IOC team for many years and believe this will be a great home. At the same time, we are excited for our remaining employees as we focus our resources and efforts on providing the best EEF solutions to the turf and ornamental market.” With this acquisition, the combined company now operates manufacturing facilities in Wisconsin, Ohio, Texas, Florida, Massachusetts, Tennessee, and Oklahoma, giving it the ability to blend and package fertilizer products and ice melt closer to customers in every major region. Turf Care Supply’s sites in Hatfield (MA), Sebring (FL), Cleveland (TN), and Catoosa (OK) will join Spring Valley’s existing plants in Jackson (WI), Fostoria (OH), Greenville (TX), and Longwood (FL). This expanded footprint significantly reduces transit times and enhances supply reliability for our customers. Maintaining strong customer relationships during and after the integration is a top priority. “All of our customers will continue to receive the outstanding service and product quality they expect, now with the added benefit of a truly national production network,” Mazzella added. Each major customer will be supported by an expanded team dedicated to ensuring a seamless transition and ongoing success. Strategically, the merger of Spring Valley and Turf Care Supply unlocks significant commercial synergies that will benefit both our customers and vendor partners. Together, the company will offer the most comprehensive product portfolio in the industry. “This combination is about building a platform that is perfectly suited to support our customers growth,” said Mazzella. “By combining our R&D and product development efforts, we intend to bring new, high-value solutions to market that neither company could have achieved alone.” The integration of the two businesses is already underway, with a focus on maintaining operational continuity and exceptional customer service throughout the spring season. The company also emphasized that all Turf Care Supply employees are being welcomed into the organization, and that the combined workforce will play a crucial role in driving the business forward. “This is an exciting moment for all of us. By uniting two great teams, we’re creating a stronger company with a shared commitment to our customers’ and vendors success, ” Mazzella noted. 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White Plains, NY – January 30, 2026 – Interoceanic Corporation (“IOC”) announced today that its affiliate Spring Valley USA (Spring Valley) , has acquired the blending and packaging assets and business of Turf Care Supply, LLC, a leading manufacturer and blender of turf and ornamental fertilizers as well as ice melt. The combination of Spring Valley and Turf Care Supply’s blending business, forms one of the largest independent lawn and garden fertilizer platforms in North America. The integrated business will have approximately 250 employees and will operate eight manufacturing and blending facilities across seven states, enabling coast-to-coast coverage of customers. By uniting two highly complementary companies, this acquisition creates a world-class turf & ornamental supply company positioned to deliver enhanced value to both professional and retail customers. “This acquisition is a transformative step for our organization,” said Elio Mazzella , President of IOC and Spring Valley. “By bringing Turf Care Supply into the IOC family, we are significantly expanding our reach and capabilities in serving the lawn and garden industry. The combined company will have an unrivaled production footprint and product portfolio, which means we can offer our customers faster service, greater efficiency, and innovative solutions on a national scale. 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