【摘要】 1998～2002年在尤溪县建立再生稻超高产示范片,5 a’累计面积1 097.73 hm2,头季平均产量10 664kg·hm-2,再生季平均产量6 537 kg·hm-2,合计年产量17 201 kg·hm-2,有一丘田再生季单产突破世界记录。头季超高产是依靠稳定穗数、主攻大穗,产量与干物质积累总量呈极显著正相关;再生季以多穗取胜,在头季收割至再生季齐穗期,再生分蘖积累的干物质有35％～40％来自稻桩转运,有60％～65％来自本身光合生产。超高产栽培主要技术是:规划适宜种植区,选用“双高”良种,调整生育期,畦式栽培,合理施肥,高留稻桩。更多还原

【Abstract】 Test fields of super high-yielding ratoon rice were established in Youxi county of Fujian in 1998 -2002. The accumulated areas in five years were 1 097. 73 hm2 . The average yield was 10 664 kg · hm-2 in main season and 6 537 kg · hm-2 in ratoon season. The results showed that super high-yield of main crop depended on stable spike numbers and larger spike, the yield had significantly and positively correlation with total dry matter accumulation. The yield of ratoon season mainly depended on more ratoon spikes, 35%-40% of dry matter accumulation in ratoon spikes derived from the transportation of main crop stubble and 60%-65% from the photosynthetic production of the leaves of ratoon rice itself. The key cultivation techniques for super high-yielding ratoon rice included planning suitable planting region, selecting the varieties with high-yielding and high ratoon ability, regulating growth period, cultivating in ridge bed, optimizing fertilizer application and maintaining higher rice stubble.更多还原