00383nam a2200133Ia 4500082001900000245007000019260005100089300000800140546001200148650002100160650001600181650003500197700001700232  a633.18bRAJ/SC  aScaling up of good extension practices in rice production systems  aThrissurbKerala Agricultural Universityc2004  a195  aEnglish  aNational Seminar  aProceedings  aKrishi Vigyan Kendra, Pattambi  aRajendran, P