粳型杂交稻“滇杂25”是从云南农大引进,经过三年在我县海拔1000米的大阳、石门和600米的路阳、凤呜等公社试种,获得成功,并在全地区推广。云阳县1983年栽培2400多亩,绝大部分增了产。群众总结“滇杂25”有五大优点:(1)产量高。1981年在大阳公社种植1.1亩,亩产854.5斤,比当地黄粘增产36%。1982年在大阳公社栽培了51亩,并扩大到开县、奉节县的五个点共91.27亩,平均亩产773.3斤,比当地常规稻亩产413.6斤增产86.9%,其中1.23亩,亩 Japonica hybrid rice “Dianza 25” is introduced from Yunnan Agricultural University, after three years in our county at an altitude of 1,000 meters of the Dayang, Shimen and 600 meters Luyang, Fen Wu and other communes to try to succeed, and in the region Promotion. Yunyang County in 1983 cultivated 2,400 acres, most of the increase in production. The masses concluded “Dian hybrid 25” has five major advantages: (1) high yield. In 1981, 1.1 hectares were planted in Dayang Commune with a yield of 854.5 kg per mu, an increase of 36% over the local yellow stick. 51 acres were cultivated in Dayang commune in 1982 and expanded to 91.27 mu in five points in Kaixian and Fengjie County with an average yield of 773.3 kg, an increase of 86.9% over the conventional rice yield of 413.6 kg, of which 1.23 mu