随着水稻育种技术进步和水稻种子产业化发展,我国生产应用的水稻品种数量年年增加。一个问题引起我们关注:良种多了,粮食亩产却在下降,农民并没有因为良种多了而增收。良种多了,农民为什么不增收?10月16日在世界粮食日召开的“水稻可持续发展国际会议”上,中国水稻研究所研究员 With the progress of rice breeding technology and the industrialization of rice seeds, the number of rice varieties used in production and application in our country increases year by year. One issue has drawn our attention: there are more thoroughbreds, grain yields are declining, and peasants do not increase their incomes because of the increased variety. On July 16, at the International Conference on Sustainable Rice Development held on the World Food Day, a researcher at the China National Rice Research Institute