I used 4 soil combos and planted pumpkin seeds from the same package at the same time. These were planted indoors in low light conditions on a heated germination pad. The manure is 5 years old from grass fed cows. This is the result after 12 days. 1) Sandy loam 2) 1/2 sandy loam, 1/2 manure 3) Pure manure 4) 1/3 sandy loam, 1/3 manure, 1/3 potting soil.