herbage seed drill
1.STUDY ABOUT DOMESTICATION AND UTILIZATION OF WILD BEE ON HERBAGE SEED BR(?)EDING FARM OF RED CLOVER
2.Some physical methods of herbage seed selection applied in grassland ecotogical resume were introduced, including electric field, magnetic field, physical radiation, laser, ion beam and alternative stress etc., and their application in biological effect, induced breeding and transgenic techniques.


