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20 0 0年选用 12个不同类型的杂交稻组合在四川绵阳、温江进行了SRI试验 ,设 4 .5万穴 hm2 和 7.5万穴 hm2 两个密度处理。结果表明 ,两个试点各组合产量以 7.5万穴 hm2 密度处理较高 ,增产原因主要是有效穗的大幅度增加 ;SRI条件下 ,水稻的分蘖潜力能得到充分发挥 ,单株分蘖数可达 70～ 80个 (4.5万穴 hm2 密度下 ) ;SRI以选择穗型中等偏大、分蘖力中等偏上的组合为宜。对水稻强化栽培技术的应用和改进提出了建议
In 2001, 12 different types of hybrid rice combinations were selected for SRI in Wenjiang, Mianyang, Sichuan Province. Two treatments of 45,000 hm2 and 75,000 hm2 were conducted. The results showed that the yield of each combination was higher at the density of 75 000 hm2, and the main reason for yield increase was the increase of effective panicles. Under SRI, the tillering potential of rice could be fully utilized and the number of tillers per plant could reach 70 ~ 80 (45,000 hm2). SRI is more suitable for medium-sized panicles with moderate tillering ability. Proposals are put forward for the application and improvement of rice intensified cultivation techniques