Design and Control of Metering System and Furrow Openers for Garlic Planter

Presently，the garlic planter is an 8-row type.This research has focused on increasing the planter capacity by reducing the draft of the planter，increasing the field efficiency by increasing the optimum number of rows and increasing the uniformity of the seed.For the 10-row garlic planter，the test results obtained from the farmer′s field were based on the following criteria：working speed 1.68kmh，height of the seed delivery tube above ground level 30cm，which was the lowest variation.The field capacity was 0.13hm2h and plant spacing was 11.73cm.The percentage of slip was 10.36%.The furrow opener is a shoe type，placed in two lines with spacing of 250mm between the lines.It gave a constant draft force of about 10.3Nrow.The percentage of germination was 74.57%.The average yield was 26919 kghm2，whilst the average yield of planting by the farmer was 30419 kghm2.The precision value for human planting was 20.93% while the 10-row garlic planter was 21.0%，on average.