00499nam a2200133Ia 4500008004100000082002200041245015300063260005100216650002300267650002300290650001800313650002000331700001400351220204s9999    xx            000 0 und d  a633.18:581.5bNAI 0aRice in wetland ecosystem : Proceedings of the national symposium on rice in wetland ecosystem held at Kottayam,Kerala during December 19 to 21,1990  aMannuthybKerala Agricultural Universityc1993  aDisease management  aIntegrated farming  aRice breeding  aWeed management  aNair, R R