一些地方在优良品种推广中，明显存在思想方法上的片面性和生产决策中的主观主义。有个别农村干部和群众，盲目大批引种外地优良品种，但由于未作小区试验，没有适于本地应用的成套栽培管理技术，栽种后并未获丰产增收，有不少甚至减产欠收。优良品种的优势荡然无存。 粮经作物 In some places, there is a clear one-sidedness in ideology and methodologies and subjectivism in production decision-making in the promotion of fine varieties. Some rural cadres and the masses blindly introduced a large number of fine varieties in the field. However, since there was no set of cultivation and management techniques suitable for local applications because no community trials were conducted, they did not receive high yield and increased income after planting. Many of them even reduced their production. The advantages of fine varieties gone. Grain crops