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三系杂交水稻育成以来,尽管经历了一个徘徊的过程,但总的来说,发展速度快,增产效果显著。1976～1989年,由200多万亩发展到2亿多亩,累计推广面积达到14.7亿多亩,与大体相同栽培条件下的同熟期常规水稻相比,加上其它措施,平均每亩
Since the three-line hybrid rice was bred, although it has undergone a hovering process, in general, the development speed is fast and the yield-increasing effect is remarkable. From 1976 to 1989, more than 200 million mu was developed to more than 200 million mu, with a total area of more than 1.47 billion mu. Compared with conventional rice of the same maturity under the same cultivation conditions, with other measures, the average acreage per acre