Compost Comparison in High Tunnels

Compost is frequently used in market garden production systems, both in the field and in high tunnels. This trial was conducted in northern Indiana to evaluate four composts for use in high tunnel tomato production, with primary emphasis on their value as sources of macronutrients. The results reported here document effects of the composts on tomato yield, leaf tissue nutrient concentrations, and soil nutrients at the end of one growing season.