g'day nancy,

could be don't know? i don't use man made fertilisers just green
mulching and some kitchen scraps along with composted material from
the drop toilet and grey water and night water.

snipped

snipped
With peace and brightest of blessings,

len

--
"Be Content With What You Have And
May You Find Serenity and Tranquillity In
A World That You May Not Understand."

http://www.users.bigpond.com/gardenlen1