Yes NA 1 August 2025 (cereal and protein crop) 3 years following establishment (mixed ley)
Ydau a chnydau protein heb eu chwistrellu, gyda gwyndwn cymysg wedi’i hau o danynt Oes Amh 1 Awst 2025 (ŷd a chnwd protein) 3 blynedd ar ôl ei sefydlu (gwyndwn cymysg)