近年来,我场原来栽培的双季晚稻黄毛粘品种,已有显著退化现象,表现在怕冷、怕风,不耐肥易倒伏,落粒性强,产量低,一般平均亩产200—350斤。尤其是在收割季节,遇到阴雨,在大面积栽培劳力少、品种单一化的情况下,往往因不能适时收割而造成严重落粒,影响产量。因此,从1964年起,我们用一季晚粳品种作双季晚稻进行了试验。试验结果表明,凡是改用一季晚粳品种作双季晚稻栽培的,其产量都比黄毛粘品种高,增产效果显著。尤其是在“单改双”的改制地区,则增产幅度更大。 In recent years, our field originally cultivated the double season late rice yellow hair sticky sticky species, has been significantly degraded, manifested in the cold, fear of the wind, not fattening and easy to lodging, falling and strong, low yield, the average yield of 200- 350 pounds. Especially in the harvest season, encounter rainy weather, in a large area of ​​labor less labor, the case of a single species, often due to not timely harvest and cause serious falling grain, affecting the yield. Therefore, from 1964 onwards, we conducted a trial using a late-season japonica variety as a double-season late rice. The results showed that all the varieties of late japonica rice instead of double cropping late rice cultivation, its output than yellow sticky varieties, yield significantly. Especially in the “single change double” restructuring areas, the increase is even greater.