a semi-automatic 9-row transplanter for bare root seedlings has recently been developed at the isfahan center for agricultural research that plants 80 seedlings/m2 using 9 operators at a capacity of 0.3 ha/d (8 h). separating a single seedling from a bunch and dropping it into a distributer cell by hand takes 1 s on average. at a density of 700-800 thousand/ha, the travel speed should not excee...

manual planting of sugar-beet stecklings is a very laborious and time-consuming opera-tion. to overcome the problems, and decrease the cost of operation to a reasonable level, a semi-automatic steckling transplanter was designed. the suitability of the steckling trans-planter with regard to the agrotechnical requirements of sugar-beet stecklings was stud-ied and the main field performance param...

The rollover tendency of upland farm machinery needs to be carefully considered because crop fields are typically irregular, and accidents frequently result in injuries even death the operators. In this study, characteristics an underdeveloped 12 kW automatic onion transplanter were determined theoretically evaluated through simulation validation tests considering mounting position transplantin...

Vibration assessment of upland crop machinery under development is essential because high vibrational exposures affect machine efficiency, service life components, degradation the working environment, and cause health risks to operator. It intensively assessed for automobiles as well large off-road agricultural vehicles (i.e., tractors). However, it mostly overlooked in case small or medium rid...

Rising labor costs and the inefficient manual methods of cultivating red onions in Bangladesh contribute to country’s failure meet is own demand. Mechanizing process transplanting onion seedlings will reduce required while increasing crop yields. This paper provides an initial study a proposed mechanized transplanter designed attach back side two-wheel tractor with power tiller operated-seeder,...