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苜蓿是多年生豆科牧草,利用期少则4～5年,长可达10年以上,苜蓿有很好的改土肥田效果。一、选地苜蓿种子田要求近5～6年未种过苜蓿。尽管苜蓿适应性强,适合在各类土壤中种植,但要想优质高产,需选择在地势平坦、土质肥沃、有机肥含量高、杂草少、土壤中性或微碱性、含盐不超过0.3%、集中连片适合机械化生产的地块上种植。
Alfalfa is a perennial legume forage, the use of as little as 4 to 5 years, up to 10 years or more, alfalfa has good soil fertilizer effect. First, the selection of alfalfa seed fields require nearly 5 to 6 years without planting alfalfa. Although alfalfa adaptability, suitable for planting in all kinds of soil, but to high quality and high yield, to be selected in the flat, fertile soil, high organic content, weeds, soil neutral or slightly alkaline, salt does not exceed 0.3%, concentrated contiguous for mechanized production plots planted.