how many pounds of nitrogen per season is necassary to maintain poa annua greens?

Question

with 50,000+ rounds of golf

Answer 1

If I remember correctly from a college course I had, an acre of ground can lose about 20 pounds of nitrogen per year. The first number on the fertilizer tells what percentage of nitrogen by weight that makes up the fertilizer. So if say, you had a 20-10-10 bag of fertilizer, and the bag weighed 50 pounds. Then you'd have 10 pounds of nitrogen in that bag. So you'd have to put 100 pounds of fertilizer on per acre to replenish the nitrogen that is lost in one year. Figure up how many acres that make up the golf course then you can figure up approximately how much nitrogen that needs to be put on the golf course.

Actually the chemical that they most focus on is Potassium (K+) for golf courses from what I recall. It is the third number in the fertilizer number, and is the only one of the three chemicals that has a positive charge. So it sticks to the ground better. Ground normally has a negative charge. Potassium helps the roots grow. And the grass needs good roots if it is going to look good and be cut short.

Check out the website below for a little more info:

http://www.ext.colostate.edu/PUBS/CROPS/00550.html