牧草主要是用种子进行繁殖的,优良的牧草种子是获得高产优质牧草的基础,是扩大牧草栽培面积的前提。因此,牧草种子生产必须抓好。(一)牧草种子田的农业技术要点有关牧草栽培的一般技术措施,已在前面讨论过,这里仅就牧草种子田的栽培技术要点作一补充说明。1.土地的选择种子田的选择必须是地势开阔、通风、阳光充足、土层深厚、排水良好、肥力适中、杂草少的地块。豆科牧草种子田最好是选在靠近有防护林带、灌木丛及水库的地方,因为这有利于昆虫传粉。2.合理布局为了保持牧草种子的纯度,防止生物学及机械混杂,必须注意不同 Forage grass is mainly used for breeding seed, good forage grass is to obtain high yield forage grass base, is to expand the premise of forage cultivation area. Therefore, forage seed production must do a good job. (A) of the forage seed field of agricultural technology points General technical measures for pasture cultivation, as discussed earlier, here only on the forage seed field cultivation techniques to make a supplementary explanation. 1. The choice of land Seed field selection must be open terrain, ventilation, sunny, deep soil, good drainage, moderate fertility, weeds and less plots. Legume forage seed fields are best chosen for shelterbelts, shrubs and reservoirs as this is good for insect pollination. 2. Reasonable layout In order to maintain the purity of forage seeds, to prevent the biological and mechanical hybrid, we must pay attention to different