A Montana study discovered that springtime plantings of berseem clover will produce the many legume dry matter and N if clear seeded.
If, nonetheless, you want to maximize total dry matter and protein, seeding with oats is advised. The oat nurse crop suppressed weeds well and increased total matter that is dry by 50 to 100 % whether or not plots had been cut two, 3 or 4 times (434).
Nodulation: Match Inoculant to optimize N
With the aid of nitrogen-fixing bacteria, legume address plants can provide some or all the N necessary by succeeding plants.