Study on Best Method of Breaking Hard Seed for Three Legume Forages in Tangshan

[Objective] The methods of getting rid of hard seeds of Medicago satiya,Melilotus officinalis and Astragals adsorbents were studied to provide reference for three legume forages getting rid of hard seeds in production.[Method] Three legume forages were treated with three ways.The Germination rate and some physiological indices were studied after treatments.[Result]All the treatements improved the seeding rate to some extent.[Conclusion]The best method of M.satiya,M.officinalis and A.dsurge getting rid of hard seeds was dipping in 0.10 mol/L KNO3,0.05 mol/L KNO3,0.40 mol/L NaOH for 2 hours,resfectively.