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北京市土肥站今年在房山、大兴、顺义、通州和昌平5个粮食主产区县的22个高产创建地块的2153公顷小麦于抽穗期、拔
This year, 2150 hectares of wheat from 21 high-yield plots of 5 high-yielding grain-producing counties in Fangshan, Daxing, Shunyi, Tongzhou and Changping of Beijing City were planted at Beijing Hefei Fertilizer Station at heading stage.