There was significant
difference between different planting times of companion crops (Table 2) a significant difference between companion
crops was observed, as the highest and lowest ear weights were
observed in corn treatment with clover by a mean of 23.18 g
and corn with dill by a mean of 20.57 g, respectively, that is
due to reduction of weeds by clover and consequently reduction
of competition between corn plants so the ear weight
was the highest among others.