Kasetsart University2007-11-131996-04-012007-11-131978http://hdl.handle.net/10625/14675Text1 digital file (174 p. : ill.)Application/pdfenMULTIPLE CROPPINGCULTIVATION SYSTEMSAGRICULTURAL RESEARCHTHAILANDCULTIVATION PRACTICESSUBSISTENCE FARMINGFERTILIZERSRICEMETHODOLOGYAGRICULTURAL ECONOMICSRESEARCH RESULTSANNUAL REPORTSWorking Paper