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以南粳9108为试验材料,在印刷播种和常规播种方式下,探讨不同栽插密度对毯苗机插水稻产量及其光合物质生产特征的影响。结果表明,与常规播种相比,印刷播种方式下水稻增产1.9%~6.3%,差异显著;长生育期、大群体颖花量和高干物质积累量是印刷播种方式水稻增产的重要途径;适当降低栽插密度可使印刷播种方式毯苗机插水稻获得高产,行株距30.0 cm×13.0 cm是印刷播种方式水稻获得高产的较优配置。
Using Nanjing Japonica 9108 as test material, the effects of different transplanting density on the yield and photosynthetic characteristics of paddy rice under blanket seedling planting were studied under the methods of sowing and conventional sowing. The results showed that compared with conventional sowing, the yield of rice increased by 1.9% ~ 6.3% under the printing sowing method, and the difference was significant. The growth rate of spikelet and high dry matter accumulation of large population was an important way to increase yield of rice in sowing mode. Decreasing the transplanting density can make the planting seedling planting machine increase the yield of paddy rice, and the row spacing of 30.0 cm × 13.0 cm is the optimal arrangement for high yield of rice in the printing sowing way.