Effects of Trichoderma spp and different rate of compost on corn germination and early growth seedling
were investigated. An experiment was conducted at glasshouse in Sari Agricultural and Natural Resources
Sciences University. The pot experiment was laid out factorial based on completely randomized design with
four replications. Three seedbed materials consisted of field soil as check, compost (20 Mg.ha-1) and (20 Mg.ha-
1) and two species of Trichoderma (T. harzianum and T. viride) with a check were the treatments. Results show
that application of compost with 20 Mg.ha-1, emergence of the seedlings (Percentage and Rate Emergence) a
9.1% and 6.6% increased compared to the other treatments respectively. Seedling vigor increased by higher
dosage of Trichoderma spp in the compost (20 Mg.ha-1) treatment. Dry weight of corn grown in the compost
were significantly affected by the application of T, harzianum and T, viride that is the dosage main effect was
statistically significant. Furthermore, application of two fungi with compost simultaneously increase seedling
emergence compared to check. However, Trichoderma and compost combination had additive effect in on
seedling emergence and early growth of corn.