ryegrass lawn

• 黑麦草草坪

ryegrass lawn的用法和样例：

例句

1. Ammonia volatilization was estimated in the field from perennial ryegrass turf after application of five kinds of N-fertilizer.
   在多年生黑麦草草坪施用速效与缓效氮肥后，对氨的挥发损失进行田间定位测定。