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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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.

A chemical fertilizer is any inorganic material of fully or partially synthetic origin that is added to the soil to sustain plant growth. Chemical fertilizers are produced synthetically from inorganic materials. Most importantly they are rich in the three essential nutrients needed for plant growth. Some examples of chemical fertilizers are ammonium sulphate, ammonium phosphate, ammonium nitrate, urea, and ammonium chloride. 
Organic fertilizers are substances that are derived from the remains or by products of organisms. Organic fertilizers depend upon the microorganisms found in soil to break them down and release the essential nutrients. Organic nutrients are rich in the three essential nutrients, but in unequal proportions. Examples of organic fertilizers are cottonseed meal, blood meal, fish emulsion, and manure and sewage sludge. There are two types of organic fertilizers: synthetic and natural organic. Synthetic organic is a organic compound produced artificially like Urea. Natural organic fertilizers are made from nature like manure and compost materials. 
Fertilizers are used to provide nutrients to the plants for growth. Soil nutrient deficiency is the prevalent problem among home owners. One of the advantages of chemical fertilizers over organic fertilizers is that chemical fertilizers are equally rich in all three essential nutrients: nitrogen, phosphorous, and potassium or NPK. On the other hand, organic fertilizers may be rich in one of the three nutrients or may have low levels of all the three. Chemical fertilizers always have a high total NPK from 20 to 60 percent or more. The total NPK for organic fertilizer blends will never exceed 14 percent. 
One difference of organic fertilizers is their slow-release capability. Slow-release capability of organic fertilizers has both advantages and disadvantages. Slow-release means there is less risk of over-fertilization and burning but sometimes the slow-release nature of organic fertilizers is not able to fulfill to needed supply of the nutrients when needed. Chemical fertilizers are always there to provide immediate supply of nutrients to plants if a situation demands. 
One of the main disadvantages of chemical fertilizers is that they have high acid content like sulfuric acid and hydrochloric acid. This high acid content results in the destruction of the nitrogen-fixing bacteria, which is helpful in supplying the nitrogen to a growing plant. Organic fertilizers do the opposite and support the growth of nitrogen-fixing bacteria.
Natural fertilizers like manure have been in use for centuries as these were the only form of nutrition that could be provided to crops before the invention of chemical fertilizers. Post WWII, with advancement of technology there was an huge growth in artificial fertilizers due to improved productivity. Lately, there has been a trend to become more green and eco-friendly but I feel the fertilizer should reflect a turfs needs whether it be synthetic or organic. 

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