I have been composting the horse manure and pine shavings from my stalls for years now. I usually just mix the compost with river sand and spread the mix in low spots in the pasture after it has been composting for about a year since we are in a low-lying area. I usually turn the pile over with my frontend loader every 2 or 3 months. I have about 20 yards now that is over 2 years old and have been wondering about using it around my fruit trees and garden vegetables. My questions are:
1. Is it safe to use on fruits and vegetables?
2. Is there more or less nutrition in 2 year old compost than in 1 year old compost?
3. Most fertilizers have 3 numbers describing the percentages of their ingredients and I have a chart showing which type of fertilizer to use on different plants. How do I figure what my numbers are on the compost?