行间播种紫花苜蓿
inter-row grass covering with alfalfa
紫花苜蓿种植技术
Planting Technique of Purple Alfalfa
多叶型紫花苜蓿
multifoliaolate Medicago sativa
南方型紫花苜蓿
Southern type alfalfa
Southern type Medicago sativa
啤特果树-紫花苜蓿复合系统
Pyrus ussuriensis-Medicago sativa complex ecosyste
Pyrus ussuriensis-Medicago sativa complex ecosystem