Development of a combination machine for secondary tillage, fertilizing and planting of some medicinal [electronic resource].

Includes references.

Field experiments were carried out to develop a combination machine for secondary tillage, fertilizing and planting of some medicinal and aromatic crops; fennel (Foeniculum vulgare Mill.) and caraway (Carum carvi L.). The combination machine performance was evaluated comparing with the traditional method as a function of change in forward speed (2.1, 3.6, 4.5 and 6.3 km/h), in terms of soil physical properties, seed scattering, emergence ratio, power, energy and cost requirements. The experimental results reveal that soil physical properties, seed scattering, emergence, energy requirement and operational cost were in the optimum region under the following recommended conditions: The use of the developed combination machine for secondary tillage, fertilizing and planting as a multi-purposes machine because of its minimum both energy and cost, added to the improvement of soil properties. Adjust the working length of feeding device fluted roll at 10 mm for seeds and 22 mm for fertilizer to obtain the desired quantity of seeds and fertilizers per feddan.

Summary in Arabic.

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