我县是一个“立体”农业区,有稻田26万亩,分布在海拔350～1000米之间,水稻种植面积和产量均占60％左右,年均气温16.3℃,水、热资源丰富,有着杂稻生产发展优势。 1984年全县种植杂稻41282亩,总产2257.9万公斤,平均单产达546公斤。比常规稻单产358.5公斤提高187.5公斤,增产52.3％,充分显示了杂稻的增产 My county is a “three-dimensional” agricultural area, with 260000 acres of paddy fields, located at an altitude of 350 to 1000 meters, rice planting area and yield both account for about 60%, with an average annual temperature of 16.3 ℃, rich in water and heat, with Miscellaneous rice production and development advantages. In 1984 the county planted 41282 acres of hybrid rice, with a total output of 2257.9 million kilograms, the average yield of 546 kilograms. Compared with the conventional rice yield of 358.5 kilograms increased 187.5 kilograms, an increase of 52.3%, fully shows the hybrid rice yield