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根据农业技术要求,马铃薯培土时,旋转中耕机及其工作部件应为整个薯垅及马铃薯植株周围培起5～8厘米厚的疏松
According to the technical requirements of agriculture, potato cultivation, the rotation of cultivator and its working parts should be for the whole yam and potato plants around the training of 5-8 cm thick loose