SEEDER EQUIPPED WITH SEEDS DELIVERY MECHANISM DEPENDING ON AN OSCILLATING MOTIVATION UNIT

Document Type : Original Article

Author

Prof. of Ag. Eng., Ag. Eng. dept., Fac. of Ag., Mansoura Univ., Egypt.

Abstract

Seeder equipped with seeds delivery mechanism depending on an oscillating motivation unit was constructed and tested under indoor experiments. The main components of investigated prototype are; seeds delivery mechanism equipped with oscillating unit, metering device and mobile trolley as power unit. On the base of a corn fertilizer unit a tray was conducted to plant seeds of Phaseolus. Four seeds delivery speeds (SDS) of 0.4; 0.5; 0.6 and 0.7 m/s with three hole span (HS) of 50, 100 and 150 mm and three different of the delivery tubes lengths (TL) of 300, 400 and 500 mm were identified as independents variables. The influence of a reciprocating motivation unit on the seeds distribution evaluated by calculating seeds miss index (MI), multiples index (DI), quality of feed index (FI) and precisions index (PI) in spacing for  kidney bean (Phaseolus Vulgaris) seeds. The results indicated that increasing the seeds delivery speed 1.75 times MI increased by about 3.6 times at HS=150 mm. The appropriate relation was found at SDS=0.5m/s and HS=100mm. Also, the data revealed a direct proportion between DI and each of SDS and TL. The feed index (FI %) recorded the highest values (95.9%) at SDS of 0.5m/s and HS of 150mm. For example by increasing the SDS 1.5 times FI % decrement by about 0.9 times.

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