00710nam a22001457a 4500003000400000082001700004088001000021100005500031245010000086260007900186300000700265500010000272520015800372700003400530OSt  2631.3 AMB/DE  aP 136  aAMBILY S. PRASADaGISS MERIN VARGHESEaSAIDALAVI M  aDevelopment and evaluation of tractor operated ditcher cum bed-former for pineapple cultivation  aTavanur 2003bKelappaji College of Agricultural Engineering and Technology  a38  aDevelopment and evaluation of tractor operated ditcher cum bed-former for pineapple cultivation  athe main components of the prototype unit of the tractor operated pineapple ditcher cum bed-former are a mould board, standard, levellers and main frame,  aDr. V. R Ramachandran (Guide)