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建立了在水肥适宜情况下逐日模拟夏玉米光合生产的动态模型ＳＩＭＰＳＭ，并用其对夏玉米从播种到成熟地上部干物质增长进行模拟，经与１９９０、１９９２和１９９３年实测值比较，表明效果较好。
A dynamic model simulating daily photosynthetic production of summer maize under SIMULATED water and fertilizer regime was established and used to simulate the growth of summer maize from sowing to mature shoots. Compared with the measured data of 1990, 1992 and 1993, it is good.