Soil Test Notes – No. T001
Dr. Stanley L. Chapman, Extension Soils Specialist
KINDS AND AMOUNTS OF FERTILIZER NEEDED TO SUPPLY
DIFFERENT RATES OF PLANT FOOD FOR LAWNS, GOLF GREENS, AND TEES
Lbs. Recommended Per
1,000 Sq. Ft. |
Some Example Grades and Amounts
Per 1,000 Sq. Ft. |
||
N
|
P2O5 |
K2O |
|
|
1 |
1 |
1 |
7 to 8 lbs 15-15-15
or 14-14-14 – or 8 to 9 lbs 13-13-13
or 12-12-12 – or 10 to 12 lbs 10-10-10
or 8-8-8 |
|
1 |
1 |
2 |
10 to 12 lbs 10-10-20
or 9-9-18 |
|
½ |
1 ½ |
3 |
10 lbs 5-15-30 |
|
1 |
2 |
2 |
10 lbs 10-20-20 or
17 lbs 6-12-12 |
|
1 |
2 |
1 |
10 lbs 10-20-10 |
|
1 ½ |
½ |
1 |
12 lbs 12-4-8 |
|
2 |
1 |
1 ½ |
10 lbs 20-10-15 |
|
1 ½ |
2 |
3 |
12 to 13 lbs 12-16-14
– or 25 lbs 6-8-12 |
|
1 ½ |
3 |
3 |
15 lbs 10-20-20 or
25 lbs 6-12-12 |
|
1 |
1 ¼ |
0 |
6 to 7 lbs 16-20-0 |
|
1 |
3 |
0 |
6 to 7 lbs 18-46-0 |
|
1 |
4 |
0 |
7 to 8 lbs 18-46-0 |
|
1 |
0 |
0 |
Slowly available
(organic): 16-17 lbs activated
sewage sludge, cottonseed meal, or soybean
meal – or 2 ¾ lbs urea-formaldehyde |
|
1 |
0 |
0 |
Readily available
(inorganic): 3 lbs ammonium nitrate
– or 6 lbs nitrate of
soda – or 2 lbs urea |
|
1 |
0 |
1 |
1 ¾ lbs muriate of
potash or 4 ½ lbs potassium magnesium sulfate
+ N (as shown above) |
|
1 |
0 |
2 |
3 ½ muriate of potash
or 9 lbs potassium magnesium sulfate
+ N (as shown above) |
|
1 |
0 |
3 |
5 lbs muriate of
potash + N (as shown above) |
|
0 |
1 |
2 |
7 lbs 0-15-30 or
6 lbs 0-17-34 |
GOLF GREEN AND TEE TIMING SCHEDULE
Rates – Pounds
Per 1,000 sq ft
Time
|
Treatment |
How to Supply 1 lb N |
Summer Greens
April 1
|
NPK
|
Mixed fertilizer
as needed* |
|
April 15 |
N |
16-17 lbs sewage
sludge** |
|
May 1 |
N |
3 lbs ammonium nitrate
or 2 lbs urea*** |
|
May 15 |
N |
16-17 lbs sewage
sludge |
|
June 1 |
NPK |
Mixed fertilizer
as needed* |
|
June 15 |
N |
16-17 lbs sewage
sludge |
|
July 1 |
N |
3 lbs ammonium nitrate
or 2 lbs urea |
|
July 15 |
N |
16-17 lbs sewage
sludge |
|
August 1 |
NPK |
Mixed fertilizer
as needed*
|
|
August 15 |
N |
16-17 lbs sewage
sludge |
|
September 1 |
N |
3 lbs ammonium nitrate
or 2 lbs urea |
|
September 15 |
NPK |
Mixed fertilizer
as needed* |
Winter Greens
October 1 |
N |
16-17 lbs sewage
sludge |
|
October 15 |
N |
3 lbs ammonium nitrate
or 2 lbs urea |
|
November 15 |
N |
16-17 lbs sewage
sludge |
|
January 15 |
N |
3 lbs ammonium nitrate
or 2 lbs urea |
|
February 15 |
N |
3 lbs ammonium nitrate
or 2 lbs urea |
|
March 15 |
N |
3 lbs ammonium nitrate
or 2 lbs urea |
*According to soil test. The higher the fertilizer rate, the more important it is to split
the application to
minimize the
risk of salt injury. Water after each
application to further decrease risk.
**Commercial activated sewage sludge with about
6% total N or equivalent sources of organic nitrogen.
***Urea is preferred source during hot
weather due to its lower salt index (certain other N sources can
be substituted).
April,
1995
The Arkansas Cooperative Extension
Service offers its programs to all eligible persons regardless of race, color,
national origin, religion, gender, age, disability, marital or veteran status,
or any other legally protected status, and is an Equal Opportunity Employer.