种植密度和行距配置对紫花苜蓿群体产量及品质的影响
魏永鹏, 南丽丽
, 于闯, 付双军
Effect of row spacing and planting density on the yield and quality of
Medicago sativa
Wei Yong-peng, Nan Li-li
, Yu Chuang, Fu Shuang-jun
种植密度和行距配置对苜蓿叶茎比的影响