Filed Evaluation of Mechanized Cultivation Planters of Rapeseed in Shoushtar Region

In order to evaluation of two types of planter for mechanized rapeseed sowing, an experiment was conducted in Agriculture Faculty of Islamic Azad University, Shoushtar Branch during 2014 and 2015. A strip plot in the form of randomized complete blocks design was applied with three replications. Main Plots were including planter types: a1; precision pneumatic Planter (mod. V5 Gaspardo - Italy), a2; grain driller (made by Barzegar Hamedan). Subplots were two levels of forward speed including: b1; 4 Km/hr and b2; 6 Km/hr. Rate of damaged seed in seed metering device, uniformity of planting depth, uniformity of seed distance on row, seed emergence and field capacity were measured for each machine. Results showed that in five parameters Gaspardo precision pneumatic planter had better result compared to the Barzegar Hamedan grain driller. This advantage was significant at in five parameters at 5% of probability. Gaspardo precision pneumatic planter than Barzegar Hamedan grain driller reduced the rate of seed damage at 3.83% and increased the rate of uniformity of planting depth, uniformity of seed distance on row, seed emergence and field capacity at the rates of 11.4, 39.3, 24.2 percent, 0.38 ha/hr respectively. Forward speed had no significant effect on the rate of damaged seed, uniformity of planting depth, uniformity of seed distance on row, but seed emergence significantly decreased and field capacity significantly increased with increasing forward speed.