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70 Villegas, V. 1912. The growth of rice in water culture. Philippine Agriculturist and Forester 2: 86-90. Waksman, SA (1924). Influence of microorganisms upon the carbon-nitrogen ratio in the soil. Journal of Agricultural Science 14: 555-562. Wikramayake, V.E.A. 1971. Direct seeding and transplanting of rice. Paper presented at the International Rice research conference. International Rice research Institute. Los Ba単os, Laguna. April 18-22.

The Evolution of Rice Production Practices  

July 2005 Philippine Institute for Development Studies Surian sa mga Pag-aaral Pangkaunlaran ng Pilipinas For comments, suggestions or furth...