The aim of this investigation is to develop and evaluate a sugar beet topping machine suitable for smallholding farms, easy to use and high efficiency. The research was carried out in Al-Maseen Village, Al-Dilengat center, Al-Behera Governorate, Egypt during 2022-2023 season. The performance of the developed topping machine was evaluated at three different levels of forward speed (1.0, 1.2 and 1.5...