00991nam a2200193 a 450000100080000000500110000800800410001902000180006010000230007824500350010126000390013630000100017552005170018565000120070265000090071465300260072365300230074970000250077210438091997-08-14 1994 bl uuuu 00u1 u #d a1-56670-020-51 aJAYAWARDANE, N. S. aSubsoil management techniques. aBoca Raton: Lewis Publishersc1994 a247p. aMinimum tillage systems; Improving and managing subsoil structure for high productivity from temperate crops on beds. Application of mole drainage in the solution os subsoil management problems. Slotting - a deep tillage techinique for ameliorating sodic, acid and other degraded subsolis acidity with minimum disturbance; Stress transmission and recompactation in tilled and segmently disturbed subsoils under trafficking; Identification and manipulation of soil bioperes for the management of subsoil problems. asubsoil aSolo aManagement techniques aTecnicas de manejo1 aSTEWART, B.A. (Ed.).