My biggest head scratcher on fertilizer this year is....(pick 2)

28 votes
How much phosphate to put on
13%
49 votes
Finding the most economical rate of N
22%
23 votes
If biologicals can replace pounds of fertilizer
11%
7 votes
If I can skip adding starter
3%
76 votes
Where prices are headed
35%
14 votes
How best to use enhanced efficiency products
6%
10 votes
How much N and P manure will release
5%
6 votes
The N credit from clover, peas, et al
3%
5 votes
Other
2%