小麦原种超稀播一般可节省种子5～10kg/667m~2,增产10%以上,其增产机理是充分利用了营养生长期长的特点,群体消长平稳,个体健壮,最终变“一减”(减少用种量)为“三提高”(提高成穗率、提高穗粒数和千粒重)而获得高产,繁育系数提高到200多。 Wheat seed super-thin sowing can generally save seeds 5 ~ 10kg / 667m ~ 2, an increase of more than 10%, its production mechanism is to make full use of the characteristics of long vegetative growth, stable growth and decline of the group, the individual robust, the final change “(Reduce the amount used) for ” three increase "(to increase the rate of panicle, grain number and grain weight per thousand) to obtain high yield, breeding coefficient increased to more than 200.