2014-05-022014-05-021993http://krishikosh.egranth.ac.in/handle/1/2058082en-USland resources, crops, sowing, manpower, research methods, planting equipment, tillage equipment, harvesting, costs, riceAnnual Report 1991-92 and Proceedings of XX Annual Workshop: All India ICAR Coordinated Research Scheme on Farm Implements and MachineryReport