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水稻制种比玉米等杂交作物相对简单,产量也较高。但是生产上往往由于制种地区的气候、灌溉水资源、栽培措施等自然与人为因素的限制,导致播种或
Rice hybrids are relatively simple and yield higher than corn and other hybrid crops. However, production is often limited by natural and man-made factors such as the climate in the seed production area, irrigation water resources, cultivation measures and the like, resulting in sowing or