近年来 ,尝透良种甜头的农民已改掉自留种的习惯 ,每年春播都是到籽种部门购买优良品种。可是 ,有少部分农民使用良种后 ,不但没有增产增收 ,相反减产减收 ,白白辛苦了一季。因而怀疑良种不良 ,对新推广的优良品种产生畏惧感 ,不敢率先使用。少部分农民使用良种没有增产增收 , In recent years, the peasants who have tasted the sweetness of good breeds have already got rid of the habit of keeping their own species. Every year, all the spring sowing is to purchase good varieties from the seed sector. However, after a small number of peasants have used the improved seeds, not only have they failed to increase production and income, but they have reduced their production and reduced their incomes in the meantime, and they have worked hard in a season. Thus doubting the bad varieties, the promotion of the new varieties of fear, not the first to use. A small number of peasants did not increase their income by using improved varieties,