一、杂稻在本州的推广应用、(一)杂稻在我州的推广概况我国是世界上第一个把杂种优势用于水稻生产上的国家,这项工作的研究开始于1964年.本州将这项研究成果用于生产上是1976年,当时栽种面积只有458.7亩.1977年冬,赴广东海南繁殖、制种,全州制种23714.7亩,产种50万公斤,单产21公斤,推广93172亩。1978 First, the promotion and application of hybrid rice in the state, (a) the promotion of hybrid rice in my state overview China is the world’s first heterosis used in rice production countries, the study began in 1964. The state The research results were used in production in 1976, when the area planted was only 458.7 acres. In the winter of 1977, went to Hainan, Hainan breeding, seed production, statewide planted 23714.7 acres, production 500000 kilograms, yield 21 kilograms, promotion 93,172 acres. 1978