On the bases of same nitrogenous fertilizer and phosphatic fertilizer amount,effect of potassium fertilization on the dry material and yield of millet were studied.The results showed that the dry weight of fringe,leaf and stem-sheath were affected by the potassium fertilizer,with the increase of potassium amount,the dry weight of fringe,leaf and stem-sheath showed a trend of increase. The accumulation of orgins on the ground increased with the increase of potassium fertilizer amount at all stages. At the po...