向日葵是我省广泛种植的经济作物之一,常年种植面积约18万亩。长期以来,群众采用传统的耕作方式,技术落后、品种老化,平均亩产仅110公斤左右,绝大多数地区种植的嗑食型品种,经济效益差。我国70年代末引进了向日葵不育系,近年来选育出一批优良杂交种。向日葵杂交种表现丰产、早熟、低秆、生长整齐一致,尤其是油用型杂交种含油率在40％以上,抗旱耐瘠,经济效益显著,极大地促进了生产,面积迅速上升。1989年我们引进了9个杂交种,通过3年试验示范,总结出一套丰产栽培技术,在生产中应用经济效益显 Sunflower is widely planted in our province, one of the cash crops, perennial planted area of ​​about 180,000 mu. For a long time, the masses adopted the traditional farming methods, backward technologies and aging varieties. The average yield per mu is only about 110 kilograms. In the vast majority of areas, the edible cultivars are poor in economic efficiency. In the late 1970s, we introduced sunflower sterile lines and bred a number of excellent hybrids in recent years. Sunflower hybrids showed high yield, early maturity, low stalk and neat growth, especially oil-based hybrids with oil content above 40%, drought resistance and barrenness, significant economic benefits, which greatly promoted the production and the area rapidly increased. In 1989 we introduced 9 hybrids, through 3 years of demonstration, summed up a set of high-yielding cultivation techniques, the application of economic benefits in the production of significant