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Abstract
The main objectives of this study were as follow : 1-To study some physical properties of sowing seeds to be sowing in order to exploit in design and manufacture the propose electronic devices.2-To manufacture two types of electronic devices to control outlet of seed drill to be used as aplanter in addition to its main work as seed drill.3-To test and evaluate the performance of two types of electronic devices under various factors such as forward speed,number of seed and hill spacing.4-To calculate the cost of manufacturing the proposed electronic devices for sowing different seeds under study.