In order to utilize its superior characteristics,Lathyrus sylvestris seeds were introdued into China fromthe United States in 1993,and had been grown for two years in Beijing. 為了利用林生山黧豆的優(yōu)良特性，從美國引進(jìn)這種林牧草的種子，在北京選點(diǎn)進(jìn)行了兩年多的栽培試驗。
Through changing rotating speed, the germination rate of forage grass seeds that were treated in the hard seed treatment hit-machine could be increased significantly. 通過(guò)改變碰撞機葉輪轉速，可以獲得具有合適擦傷度的牧草種子，滿(mǎn)足提高種子滲透性和發(fā)芽率的要求。
