Furrow openers can be adjusted by removing or raising few furrow openers with shanks according to the number of rows and spacing in different crops to be raised on the top of the raised beds (Fig: 2.) .As shown in Figure: 3, three ridgers have been provided to make two beds in a single pass. Most of the farmers have tractors in the range of 35-45 HP and 3 ridgers can easily be pulled by these tractors. Height of the beds in wheat varies from 15to 30 cm and it can be further adjusted. Whereas, the width of furrow and top of the bed generally remain 30 cm and 37 cm respectively. However, it can be varied from 20to 40 cm by adjusting the wing width. (Fig: 4.)
b) Adjustment of the bed shaper Bed Shaper should also be adjusted in the upward and downward position for shaping the bed. Just loosen the bolt and lift the shaper towards the upward position if the bed little higher is required than higher the nut and bolt again as well as for a bed at the lower position, loosen the nut and bolt again and shift the shaper to the downward direction and tighten thenuts and bolts as shown in Fig: 5. c) Seed metering speed adjustments: As shown in Figure 6 & 7 select appropriate, select appropriate combination of gear / sprockets for getting desired speed of rotation of seed &fertilizer metering shafts.
Figure shows following processes: A 11 Teeth sprocket B 20 Teeth sprocket Figure shows following process: C 28 teeth sprocket D 11Teeth sprocket for seed box E 15 Teeth sprocket for fertilizer box F 15 Teeth idle
G Transmission chain d) Seed rate adjustments: i) In order to adjust the inclined plates we have to put washer between the nylon plate and housing on the shaft so that the face of plate should not have any gap between the face of housing. ii) The function of press plate is to provide proper pressure on the ring. iii) Adjust the nut as per required pressure on the ring. (Fig: 8.) e Increase and Decrease the flow of seed: To increase the flow of seed, lift the seed box in the upward direction, and to decrease the flow shift the seed box in the downward direction (as shown in Fig: 9.).
f Seed Metering: i) For Wheat:
a) Use the 16 no`s spoon plane plate. b) As given in Fig: 10. sprocket selection is as under: Position C 28 Teeth sprocket D 11 Teeth sprocket for seed box E 15 teeth sprocket for fertilizer box F 15 teeth idle ii) For soyabean: a. Use the 8 no`s spoon inclined plate no. “0”. b. As given in Fig: 11.sprocket selection is as under: Position C 28 Teeth sprocket D 15 Teeth sprocket for seed box E 15 Teeth sprocket for fertilizer box F 15 Teeth idle iii) For maize, chick pea and bengal gram:
1 Use the 8 no`s spoon inclined plate no. “20”. 2 As given in Fig: 12.sprocket selection is as under: Position C 11 Teeth sprocket D 15 Teeth sprocket for seed box iv) For ground nut, hybrid maize: a) Use the 8 spoon inclined plate no. “30”.
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- Spring '16
- prof muchiri
- Power, field operations, Agricultural Mechanization, farm machinery