REFERENCES
- Beets , W. 1982 . Multiple Cropping and Tropical Farming Systems , 156 USA : Westview Press Inc. 5500 Central Avenue, Boulder, CO 80301 .
- Capati , H. M. B. 1983 . Improving the Fertility of Wetland. Rice Soils by Straw and Water Management , Laguna, Philippines : U.P. Los Baños . MS. Thesis
- Chapin , F. S. III , Sala , E. S. , Burke , I. C. and Grime , G. P. 1988 . Ecosystem Consequences of Changing Biodiversity . BioScience , 48 ( No. 1 ) : 45 – 52 .
- Cox , W. G. and Atkins , M. D. 1979 . Agricultural Ecology, An Analysis of World Food Production Systems , 721 San Francisco, CA : W.H. Freeman and Co. .
- Gardner , A. C. and Clancy , S. A. 1996 . “ Impacts of Farming Practices on Soil Quality in North Dakota ” . In Methods for Assessing Soil Quality , 337 – 343 . Madison : Soil Science Society of America .
- Gerhardt , R. A. 1997 . A Comparative Analysis of the Effects of Organic and Conventional Farming Systems on Soil Structure . Biol. Agric. Hort. , 14 : 139 – 157 .
- Horstkotle-Wesseler , G. 1999 . Socio-Economics of Rice Aquaculture and IPM in the Philippines: Synergies; Potential and Problems GTZ ICLARM IRRI. 224p
- Jansen , P. H. 1973 . Tropical Agroecosystem Science Vol. 182 , 1212 – 1219 .
- Kennedy , A. C. 1999 . Bacterial Diversity in Agroecosystems . Agric. Ecosystems and Environment , 74 : 65 – 76 .
- Lampkin , N. and Measures , M. 1999 . Organic Farm Management Handbook, 1999 , Welch Institute for Rural Studies, University of Sberystmyth .
- Mendoza , T. C. 2002 . “ An Evaluation Study of Plan International Sustainable Agriculture Program in Calapan Oriental Mindoro ” . In Report submitted to Plan International Phil., 6th Floor N & M Building, Chino Roces Ave. 123 Makati City, Philippines
- Mendoza , T. C. 1985 . “ Understanding Farming Circumstances ” . In Compendium of Notes in Farming Systems , 13 Laguna, Philippines : Department of Agronomy, U.P. Los Baños .
- Mendoza , T. C. 1994 . Adoption of Soil Benefitting Agricultural Practices for Lowland Rice Production in the Philippines . Phil. Agriculturist. , 77 ( No. 2 ) : 235 – 241 .
- Mendoza , T. C. 2002 . “ Comparative Productivity, Profitability and Energy Use in Organic, LEISA and Conventional Rice Production in the Philippines ” . In Paper presented during the 14th World Congress , Canada : IFOAM, Victoria .
- Misra , R. V. and Hesse , P. R. 1983 . Comparative Analysis of Organic Manures Projects Field Documents No. 24. FAO/UNDP Regional Project RAS/75/004
- Olanday , M. O. 1991 . “ Ecological Succession and Diversity Patterns of Rice Insects in an Organic Farm. MSc Thesis. U.P. Los Baños, Laguna, Philippines. ” . 173
- Pimentel , D. , ed. 1980 . Handbook of Energy Utilization in Agriculture , Boca Raton, FL : CRC Press .
- Reganold , J. P. , Elliott , L. F. and Unger , Y. L. 1987 . Long Term Effects of Organic and Conventional Farming on Soil Erosion . Nature , 330 ( No. 614 ) : 370 – 372 . b
- Reich , P. B. , Knops , J. , Tilman , D. , Craine , J. , Ellsworth , D. , Tjolker , M. , Lee , T. and Wedin , D. 2001 . Plant Diversity Enhances Ecosystem Responses to Elevated CO2and Nitrogen Deposition . Nature , 410 : 809 – 812 .
- Reijntjes , C. , Hauerkort , B. and Water-Bayer , A. 1992 . Farming for the Future, An Introduction to Low-External-Input and Sustainable Agriculture , 250 Macmillan Press Ltd, ILEIA .
- Soriano , A. S. 1982 . “ Energy-Based Analysis of Alternative Production Systems in Irrigated Lowland Rice. MSc Thesis. U.P. Los Baños, Laguna, Philippines. ” . 123
- Tolentino , B. J. , Noveno , E. O. , dela Peña , B. , Rayco , B. and Villapando , I. 2001 . “ Grains Policy and Institutional Reforms. Advisory Technical Assistance Project (ADB-DATA 3429) Department of Agriculture ” . In 101 Facts about Rice in the Philippines Quezon City, Philippines
- Waide , R. B. , Willig , M. R. , Steiner , C. F. , Mittelback , G. , Gough , L. , Dodson , S. I. , Juday , G. P. and Parmenter , R. 1999 . The Relationship Between Productivity and Species Richness . Annu. Rev. Syst. , 30 : 257 – 330 .