Servicing the Mpls/St. Paul metro through 5 area offices:    Eden Prairie (952) 941-2900 | Burnsville (952) 890-6655
Woodbury (651) 735-4422 | Plymouth (763) 383-7655
New Brighton (651) 633-9892


 

               

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Testimonials

Joan from New Brighton says:

05/02/11 06:10 PM

I have used Guaranteed since the early 90's and I have enjoyed watching there company grow without compromising the service they have provided to us! we love supporting our local companies

 

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Refer a Neighbor... or a Friend

Receive one free Fertilizer and Weed control application on your next service when you refer a neighbor or a friend to Guaranteed Turf Care and they sign up for our Nature Green or Weekender Mowing program.

Good cultural practices and proper fertilization techniques for turfgrass will produce a dense, green lawn. As we know a thicker lawn means less weeds, and more resistance to diseases and pests. Sloppy application techniques or excessive amounts of fertilizer applied at the wrong time of year can result in serious turf damage and contamination of water resources. Successful turf fertilization requires that you know your turf’s nutritional requirements, understand fertilizers, know when to apply, know how much to apply, and use proper application techniques.

There are sixteen nutrients that are needed by turfgrass plants for proper development. Each has a different function within the plant and is required in different amounts. A deficiency of any one nutrients can limit a plant’s potential. Fortunately, natural soil processes supply most of the elements. Three elements—nitrogen (N), phosphorus (P), and potassium (K)—are considered primary macronutrients because they are often required in larger quantities than are made available naturally. This is why fertilizer applications are needed. Deficiencies of secondary nutrients and micronutrients are rare but can happen in unusual soil conditions such as sandy, acidic, or alkaline soils. Fertilizer labels usually have three numbers on the front representing N-P-K. 

The first application of fertilizer should begin in spring with a higher concentration of Nitrogen. This will replenish depleted nutrients from the winter and help encourage shoot growth and green up. The next application should occur in early summer; this will rebuild the food reserve from the vigious growth in the spring, and it will help improve color. Mid-summer applications of fertilizer are not recommended due to the environmental conditions already stressing the turf. During late summer/early fall a slow release or sulfur coated fertilizer with Iron is recommended. Slow release fertilizers will be less stressful on the turf and the addition of Iron will help with color. The fourth and final fertilizer application should occur in late fall. This application should consist of a lower Nitrogen and higher Potassium blend. Potassium will promote fall root development for the next year’s growing season and excessive Nitrogen in the fall is not recommended. At Guaranteed Turf Care we have our fertilizer custom blended for different nutrients at different times throughout the growing season.

Fertilizer application rates are always calibrated in pounds of nitrogen per 1000 square feet of grass. Nitrogen is the most important nutrient a grass plant utilizes. Bluegrass lawns in this area require 4 pounds of nitrogen per year. The maximum rate of any single application should never exceed 1 pound of nitrogen per 1000 square feet. Excessive application of nitrogen in a single application or lack of annual nitrogen requirements is detrimental to developing a healthy lawn. Application rates of nitrogen should be less than 1 pound per 1000 square feet during the spring growth surge.

Application of the fertilizer in a proper manner is crucial to success. Two types of spreaders for granular materials are available: drop and rotary spreaders. Drop spreaders distribute the fertilizer directly below the hopper in a well-defined pattern. Rotary spreaders throw the fertilizer material out beyond the spreader in several directions and are satisfactory for most lawns. Although rotary spreaders give a less precise distribution, they are much faster and are less likely to leave a striped pattern on the lawn where areas were missed. With either type of spreader it is a good practice to fertilize one-half the desired application rate in one direction, then the second-half perpendicular to that direction. Fertilizer spreaders will apply different materials at different rates. Ideally, you should calibrate your spreader for your pace and the fertilizer or material used. To calibrate a spreader with a given fertilizer, adjust the spreader setting to a selected level, weigh out a known amount of fertilizer or material, spread that amount of fertilizer, and measure the ground area covered in the process. Remember the goal is to apply 1 pound of Nitrogen per 1000 feet squared.

Developing a successful turfgrass fertilization program requires more than an annual April application of a high nitrogen fertilizer. It requires both technical knowledge and turf management experience. To develop a total fertilization program, the turfgrass species and growth cycles, the minerals required for growth and development, the soil fertility, fertilizer characteristics, the environmental conditions, and the application schedule need to be considered. Successful turf managers, whether they realize it or not, consider these factors when making the decision on how to fertilize, when to fertilize, and how much to fertilize. 

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