Interaction of time of sowing and weed management of lupins

To better understand the tradeoffs between lupin yield and weed management with delayed sowing.To demonstrate shielded spraying in controlling large weed populations, which often arise after dry sowing.

为更深入地探究迟播条件下羽扇豆产量与杂草防治之间的权衡关系，并演示防护式喷雾（shielded spraying）对干播后常出现的大量杂草种群的防控效果。