Performance evaluation of Some cultivators

Field experiments were carried out at Zankloun farm, Sharkia Governorate to evaluate the performance of different cultivators during secondary tillage operation in case of preparing soil for planting maize (Hagin 3/310) varietyThe objectives of this work are1-Evaluating the performance of three different types of cultivators during secondary tillage operation. 2-Selecting optimum cultivator size suits for a certain field size3-Optimizing cultivator forward speed and operating depth to achieve high efficiency. 4-Comparing the used cultivators from the economic point of view.Selecting of cultivator size was done taking into consideration both time requirements and fuel consumption. While evaluation of the different cultivators was carried out with reference to field capacity and efficiency, some soil physical properties, crop yield, energy requirements, and operational cost.The experimental results reveal that the use of the rotary cultivators to perform secondary tillage operation minimizes both energy and cost added to the improvement of soil properties under the following conditions: 1-Motor-hand operated cultivator (small size, 110cm. width) can be used in plot areas of less than 0.5 feddan, medium-rear mounted cultivator (125cm. width) can be used in plot areas of between 0.5 to 1.0 feddan, while large-rear mounted cultivator (145cm. width) can be used in plot areas of more than 1.5 feddans. 2-Operate medium and large-rear mounted cultivators at a forward speed of approximately 3 km/h.3-Operate motor-hand operated cultivator at forward speed of approximately 2.2 km/h 4-Operate the used cultivators at a depth of 5cm. ABSTRACTField experiments were carried out at Zankloun farm, Sharkia Governorate to evaluate the performance of different cultivators during secondary tillage operation in case of preparing soil for planting maize (Hagin 3/310) variety. The objectives of this work are:1- Evaluating the performance of three different types of cultivators during secondary tillage operation. 2-Selecting optimum cultivator size suits for a certain field size. 3-Optimizing cultivator forward speed and operating depth to achieve high efficiency. 4-Comparing Selecting of cultivator size was done. The experimental results reveal that the use of the rotary cultivators to perform secondary tillage operation minimizes both energy and cost added to the improvement of soil properties under the following conditions:1-Motor-hand operated cultivator (small size, 110cm. width) can be used in plot areas of less than 0.5 feddan, medium-rear mounted cultivator (125cm. width) can be used in plot areas of between 0.5 to 1.0 feddan, while large-rear mounted cultivator (145cm. width) can be used in plot areas of more than 1.5 feddans. 2-Operate medium and large-rear mounted cultivators at a forward speed of approximately 3 km/h. 3-Operate motor-hand operated cultivator at forward speed of approximately 2.2 km/h. 4-Operate the used cultivators at a depth of 5cm