自1981年开始,我县杂交水稻以种植汕优3号为主.几年来,汕优3号种植面积逐步扩大,栽培技术不断改进,单产连年提高.1981年32.26万亩,平均单产842斤;1982年32.7万亩,平均单产891.5斤;1983年38.4万亩,平均单产达1032斤,分别比1981和1982年单产增190斤和140.5斤. Since 1981, the main hybrid rice in our county is mainly planted with Shanyou No. 3. In recent years, the planting area of ​​No. 3 in Shanyou has been gradually expanded, the cultivation techniques have been continuously improved and the yield per unit has been increased year by year. In 1981, 32.26 mu was produced with an average yield of 842 kg; 32.7 million mu in 1982, with an average yield of 891.5 kilograms; in 1983, 384,000 mu, with an average yield of 1032 kilograms, up 190 pounds and 140.5 kilograms respectively over those in 1981 and 1982.