Manawadu, I.P.; Dahanayake, N.; Senanayake, S.G.J.N.
(Faculty of Agriculture, University of Ruhuna, Sri Lanka, 2013-11-28)
A major problem encountered in tropical agriculture is the reduced soil fertility due to monoculture. Therefore, there
is a need to improve productivity of soil by using environmental friendly methods. Rice (Oryza sativa ...