Garden Fertilisation techniques

There are two factors to consider regarding lawn fertilization : how much to apply and when. Three pounds of nitrogen suggested approximately 1,000 square feet per growing season for most full sun grasses ( Kentucky bluegrass , Kentucky bluegrass mixed with perennial ryegrass and / or fine fescue ) (suggested dose is 2 to 4 pounds per 1,000 square feet per station) . Applications must be made in two or three stages ; each application of nitrogen should be about 1 pound per 1,000 square feet . For the grass growing in the shade suggests about half the nitrogen. The percent nitrogen bag and garden size ( in square feet) are variables for calculating as shown below.

How to calculate the amount of nitrogen-based fertilizer to be applied in the field:
Divide the desired dose of nitrogen by the percentage of nitrogen in bag ( first number 3 in the bag, use decimal) .
Multiply the response for the turf surface in square feet and divide by 1,000.
EXAMPLE: 15-5-10 fertilizer , 7,000 square feet , you want to apply 1 pound nitrogen / 1,000 square feet

.15 Divided 1 pound = 6.66 , rounded to 6.7
6.7 multiplied by 7,000 = 46,900 ; divided by 1,000 = 46.9 or 47 pounds
Therefore, approximately 47 pounds of 15-5-10 fertilizer is needed to treat the whole garden .

Once the amount is calculated to apply , decide when to make the application. In Autumn ( mid September ) it is key to fertilize your lawn the day. The schedule below indicates the time of application based on the amount scheduled to make in a year and the quality of the desired grass. Use controlled-release fertilizer nitrogen in May and September and a source of quick release in late fall . (See Choosing fertilizer for the lawn ) . Take Mother's Day , or Halloween as favourable to fertilize the lawn.

Lawn Fertilization Schedule
Number of applications / year suggested moment
A ( poor quality grass ) Early September
Two ( lawn regulate bad quality ) Early May , early September
Three ( turf fair to good quality ) Early May , early September, late October / early November
Four ( only irrigation) ( lawn quality ) Early May , mid-June, early September, late October / early November
Organic fertilization programs involve the use of compost application at least once a year and may be supplemented with compost teas if desired .