Technical Evaluation of Three Planters with Different Cropping Pattern on Soybean Yield in Moghan

Equipment and machinery choose for agricultural operations is generally not a simple task. The main problem by using seed driller for soybean is the lack of sufficient accuracy in the distribution and the location of seeds in the soil. This problem is rather less in row planters. To maximize the yield, changes in product varieties, row spacing and seed rate per unit area are inevitable. The aim of this study was to select the most appropriate system for planting soybeans in Moghan plain. So an experiment with statistical complete randomized block design with four replications was conducted during two years in Moghan. Machines and plant systems (treatments) include cereal deep planters (Hassia) with T1:25 and T2:50 cm row space, grain drills (Barzegar Hmadani) with T3:25 and T4: 50 cm row space, pneumatic row planters with T5:50 cm in row space (Gaspardo) and T6 (Noda) two rows on ridge 75 cm row distance. Results indicated that T6 and T4 treatments have the highest and lowest yield with 2864 and 2252 kg ha-1 , respectively. T6 had the maximum seed germination rate (87.32%). According to the coefficients of seed distribution T6 had the maximum uniformity in adjusted distances (83.04%) and in average distances (87.32%). It is recommended to use of, pneumatic planters with two rows on ridge and 75cm in row distance which showed the highest yield and also was preferred in terms of many other factors.