Sowing units are connected parallel with mechanical component to the same frame on sowing machines. Adjustments should be appropriate for seed and soil type.
COMPONENTS OF SOWING INTO DEEP
There are two types of sowing components for average depth degree according to hardness of seed bed.
- Pressure wheels and furrow opener foot that indicated with Figure 1 are recommended to use for cultivated soil.
- Furrow opener foot with double disc is more appropriate for stony and hard soil.
There are three dierent types of pressure wheel for dierent types of soil:
1) Farmex Wheel: It is recommended for moisture and sand soil.
2) V Type Rubber Wheel: It is appropriate for moisture and hardness soil.
3) V Type Iron Wheel: It is appropriate for dry and average hardness soil.
COMPONENTS OF SOWING TO SURFACE
Sowing machine has a standard balance system with plastic additional wheel (Ø=280mm) for sowing to surface. There are also three dierent types of pressure wheel for dierent demands (Figure 5).
1) Concave Rubber Wheel (Ø=290mm): It is appropriate especially for sowing sugar beet.
2) V Type Rubber Wheel: It is appropriate especially for moisture and hardness soil.
ADJUSTMENT OF REAR PRESSURE WHEEL
Rear system of sowing unit is important for sowing high quality seed. These components are used for adjusting depth of seed. They are also used for covering the seed after throwing away seed. They should be adjusted properly according to soil and seed type. You can change the position of rear wheel by using support components as shown in Figure 6.