牧草引种栽培
herbage introduction and cultivation
稻田套种牧草
interplanting rice with forage
复种牧草
Multiple cropping forage plant
牧草种植地带
Region of forage planting
牧草种植管理
pasture growing management
牧草种植技术
the technology of grass planting
牧草种质资源
forage resources
forage germplasm resource
Forage germplasm resources
collection
牧草种子生产
grass seed production
Herbage seed production
Forage seed production
the production of forage grass seeds
牧草种子收获机械
grass seed harvesting machinery