1优良的农作物品种是现实的生产力种子在农业生产中是最基本的生产资料。优良农作物新品种的推广是农作物增产的内因，是提高农作物产量和品质最经济、最有效的措施。据联合国粮农组织统计，近25年来，世界粮食产量翻了一翻，其中有75％来自单产的提高。而在单产的提高中，优良 1 Good crop varieties are realistic productive forces Seeds are the most basic means of production in agricultural production. The promotion of new fine varieties of crops is the internal cause of crop yield increase, which is the most economical and effective measure to increase crop yield and quality. According to the UN Food and Agriculture Organization, the world’s grain output has doubled over the past 25 years, of which 75% comes from the increase in yields. In improving the yield, excellent