Using the hign-yield spiece Canggu 4 cultivated by Cangzhou Academy of Agricultual and Foresty Sciences as materials,this experiment studied the effect of potassium fertilization on the growth and yield of millet. Results show that the plants hight,the weight of root,the weight of Single stem,stem pull,the length of the third to the fifth of stem root and the mechanical strength of the stem go up with the increase of potassium fertilization. The accumulation of the dry material on the ground go up with the ...