Some management measures on seed producing field like N or compound fertilizer top derssing in fowering period, leaf cutting bee keeping could effectively increase the yield and quality of lucerne.

• 在栽培管理种子田的过程中，于花期追施氮肥、复合肥、放养切叶蜂等均会有效地提高苜蓿种子的产量及质量。