冬性一年生牧草
Annual winter forage crop
多年生牧草
perennial grass
perennial grass and legume
Perennial artificial grazing
perennial forage
Perennial grasses
旱生牧草
managing and planting technology of artificial grassland
牧草生产机械化
mechanization on forage grass production
盐生牧草
Salt—tolerant forage plants