Size of Fertilizer

Agrantina · Apr 28, 2012

Bought a new 3pt spreader the other day at it has the settings listed by large, med, small granular fertilizer . Big difference in the setting per size..

My question is what size is 15-15-15 co-op brand???? Never seen it listed by size??

AndyG

Carl_NH · Apr 28, 2012

Thats a new one on me too! I use 10-10-10 for most applications and also pelltized lime.

Pelletized lime in my opinion is "small" granules maybe .080" and 10-10-10 is medium granule size .100 to .125". Then you have specialty treatments like for Grubs that are a very small granule about .050".

I would experiment with small and medium settings personally.

The other question is what does this regulate? The opening for the spreader?

LeadPoison · Apr 28, 2012

Is that what is in the book or on the unit itself on the control mechanism? Usually it has numbers on the spreader up to 7 or 8.

15-15-15 is granular fertilizer. Just like triple 13 or 19.

You are looking at about 300# per acre at setting 4 at 5mph if I recall correctly.

Small, medium and larger generally refers to seed size.

Hope this helps.

Agrantina · Apr 28, 2012

LeadPoison said:
Is that what is in the book or on the unit itself on the control mechanism? Usually it has numbers on the spreader up to 7 or 8.

15-15-15 is granular fertilizer. Just like triple 13 or 19.

You are looking at about 300# per acre at setting 4 at 5mph if I recall correctly.

Small, medium and larger generally refers to seed size.

Hope this helps.

both the book and on the spreader.. It has --example setting 2 at 4.5mph is about 110lb ac.. that is with medium size.. With small - same setting is about 320lb per ac.... I am going to test first but just have never seen a size chart for fertilzer?

AndyG