1998年,我们围绕杂交水稻制种单产徘徊不前,效益大幅度降低问题,从目前生产上应用的组合中,引进生产、示范了37个组合进行配制比较.各组合间的面积由124m~2至111hm~2不等.结果,大面积的特优559制种单产最高,效益可观.具体是:总面积96.27hm~2,实收杂交稻种子511.19t,单产为5.31t/hm~2,实收父本(商品粮)316t,单产 3.29t/hm~2,获得了本镇制种历史以来单产最高纪录.其主要栽培技术如下: In 1998, we focused on the stagnation of yield per hectare of hybrid rice seed production, and the benefit was greatly reduced. From the current combination of production application, we introduced the production and demonstrated 37 combinations for comparison. The area between each combination ranged from 124 m 2 To 111hm ~ 2, the results showed that the yield per area of ​​Teyou 559 was the highest, with significant benefits, including a total area of ​​96.27hm ~ 2, a yield of 511.19t, a yield of 5.31t / hm ~ 2, The yield of 316t and the yield of 3.29 t / hm ~ 2 were obtained from the male parent (commodity grain) and the highest yield was obtained since the history of seed production in this town.The main cultivation techniques are as follows: