施肥与混播比例对豆禾混播牧草产量及氮磷钾利用效率的影响
张永亮
*
, 于铁峰, 郝凤, 高凯
Effects of fertilization and legume-grass ratio on forage yield and NPK utilization efficiency
ZHANG Yong-liang
*
, YU Tie-feng, HAO Feng, GAO Kai
氮磷钾肥对混播牧草NPK吸收率的影响