Rack Petroleum Ltd. is a well known and reputable fertilizer retailer in west central Saskatchewan. The RACK provides Spraying/Fertilizer Custom Application services in all eight locations throughout west central Saskatchewan. Rack Petroleum's fleet of fertilizer apllication equipment (Floaters) ensures a high quality fertilizer application. Our floaters have been variable rating a lot of super urea this fall so our customers not only are receiving prescription maps that count but they are also receiving the newest technology in nitrogen use. Super urea and Amidas has become a new standard in increasing yields over regular urea and its use continues to increase. Custom aerial spraying is available through a third party.
HOW TO CALCULATE ACTUAL PRODUCT APPLICATION NEEDED FOR ONE COMPLETE YEAR: (Total fertilizer for multiple applications
The first number in a fertilizer analysis is the nitrogen percentage. A bag of 25-4-6 analysis such as the PennGreen Seedland.com sells has 25% Nitrogen per bag. Divide this N amount into the lbs. per 1000 rate from the chart. In this case divide 3 by .25 = 12 (use decimal conversion on the percentage i.e.: 25% = .25 )
This means that 1000 sq. ft. of your lawn would require 12 lbs. of this analysis of fertilizer in a YEARS time. This rate would provide a mid-range of maintenance (average) on a Bluegrass lawn. Thus under a mid-range maintenance plan, you would fertilize twice a year. Therefore you need to apply 6 lbs. of actual fertilizer per application twice a year per 1000 sq. ft. of your lawn --- A 20 lb. bag such as the one we sell would cover just over 3000 sq. ft per application.
TO CALCULATE AMOUNT OF FERTILIZER
PER APPLICATION (For each 1000 sq.ft. of lawn)
Divide the analysis into 100. If the analysis is 27% Nitrogen. 100 divided by 27 = 3.71. That means you would need to apply 3.71 lbs. per 1000 sq. ft. to apply an actual rate of 1 LB of Nitrogen per application.