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播种是种草的关键,要求季节虽没有粮食作物那样严格,但为了保证苗齐苗壮和高额的产草量,必须认识牧草播种的难点,抓好播种这一重要环节。一、认识牧草种子目前种植的牧草主要有两大科。豆科如苜蓿、红豆草、草木樨、沙打旺等。它们的种子卵园或肾形,富含蛋白质。种子寿命很长,苜蓿籽20年还有6—95%的发芽率;草木樨贮放20年也有16—44%的发芽率,红豆草、三叶草种子寿命一般4—5年,但有的品种却能保存20年之久。豆科种子又具有硬实性,草木樨硬实率达60—70%,苜蓿10—30%,红豆草4—20%。
Sowing is the key to planting grass and requires that the season is not as strict as food crops. However, in order to ensure the seedling strength and high yield, it is necessary to recognize the difficulty of sowing the grass and grasp the important aspect of sowing. First, know forage seed Currently grown forage has two main branches. Leguminosae such as alfalfa, safflower, vegetation, such as sand Asthma. Their seeds are egg-shaped or kidney-shaped, rich in protein. Seed life is very long, alfalfa seeds in 20 years there are 6-95% of the germination rate; 20 years of grass mulberry also have 16-44% of the germination rate, saffron, clover seed life is generally 4-5 years, but some species But can save 20 years. Leguminosae seeds also have a hard nature, hardwood solid rate of 60-70%, 10-30% of alfalfa, saponins 4-20%.