1、按株型分用途一般单子叶牧草如黑麦草、墨西哥玉米、苏丹草、皇竹草等,粗纤维成分(双子叶的串叶松香草粗纤维含量也较高),宜饲喂草食动物,如牛、羊、兔、鹅、鱼等。而多数双子叶牧草,如美国籽粒苋、鲁梅克斯、较嫩的串叶松香草等,更适合喂饲猪、兔、鸡、鸭、鹅、鱼等。2、按生长期分用途以割草为目的的,可选择生育期为1～2年生的紫花苜蓿、红三叶、籽粒苋,一年生黑麦草等。以建立牧场为目的的,则应选择多年生,再生能力强的品种如多年生黑麦草、串叶松香草。多年生和一年生牧草不可套种,否则影响产量和效果。 1, according to plant type sub-purpose General monocotyledonous pasture such as ryegrass, Mexican corn, sudangrass, imperial bamboo grass, crude fiber composition (dicotyledonous clover herb crude fiber content is higher), should feed herbivores , Such as cattle, sheep, rabbits, geese, fish and so on. Most dicotyledonous forages, such as American amaranth, Rumex, softer and more, are more suitable for feeding pigs, rabbits, chickens, ducks, geese and fish. 2, according to the growth period sub-purpose to mowing for the purpose, you can choose the growth period of 1 to 2 years of alfalfa, red clover, amaranth, annual ryegrass and so on. To establish pastures for the purpose, you should choose perennial, regenerative varieties such as perennial ryegrass, clover herb. Perennial and annual grasses can not be interplanted, otherwise affect the yield and effectiveness.