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Libro-Agroecologia

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Bibliografía335Ruddle, K., and G. Zhang. 1988. Integrated Agriculture aquaculture in South China. England:Cam- bridge University Press.Ruthenberg, H. 1971. Farming Systems of the Tropics. London: Oxford Univ. Press.Sagar, G. R. 1974. «On the ecology of weed control.» In: Biology in Pest and Disease Control. D.Price Jones and M. E. Solomon, eds. England: The 13th Symp. Brit. Ecol. Soc.Salter, P. J., J. M. Akehurst, and G. E. L. Morris. 1985. An agronomic and economic study ofintercropping Brussels sprouts and summer cabbage. Exper. Agric. 21: 153 167.Samson, R., C. Foulds, and D. Patriquin. 1990. Choice and Management of Cover Crop Species andVarieties for Use in Row Crop Dominant Rotations. Resource Efficient Agricultural Production(REAP)-Canada/Agriculture Canada, Res Sta., Harrow, Ontario.Sanchez, J. B. 1989. Conservacion de recursos naturales, produccion de alimentos y organizacioncampe- sina. CIED, Lima, Peru.Sanders, J. H., and D. V. Johnson. 1982. Selecting and evaluating new technology for small farmersin the Colombian Andes. Mt. Res. Dev. 2(3): 307 316.Savory, A. 1988. Holistic Resource Management. California: Island Press.Schroth, M. N., and J. G. Hancock. 1985. Soil antagonists in IPM systems. In: Biological Control inAgricultural IPM Systems. M. A. Hoy and D.C Herzog. Florida: Academic Press. pp. 422 423.Schumacher, R. 1973. Small Is Beautiful. London: Abacus.Scott, J. 1978. The Moral Economy of the Peasant. Madison: Univ. Wisconsin.. 1986. Weapons of the Weak: Everyday Forms of Peasant Resistance. New Haven: Yale UniversityPress.Scott, T. W., J. Mt. Pleasant, R. F. Burt, and D. J. Otis. 1987. Contributions of ground cover, drymatter, and nitrogen from intercrops and cover crops in a corn polyculture system. Agron. J. 79:792 798.Sen, A. 1981. Poverty and Famines. New York: Oxford Press.Senanayake, R. 1984. «The ecological, energetic and agronomic systems of ancient and modern SriLanka.» In: Agricultural Sustainability in a Changing World Order. Douglass, G. K., ed.Boulder: Westview Press, pp. 227 238.Sengupta, K., K. K. Bhattacharyya, and B. N. Chatterjee. 1985. Intercropping upland rice withblackgram (Vigna mungo L.). J. Agric. Sci., Cambridge 104: 217 221.Shaner, W. W., P. F. Philipp and W. R. Schmehl. 1982. Farming Systems Research and Development:Guidelines for Developing Countries. Boulder: Westview Press.Sheath, G. W., R. J. M. Hay, and K. H. Gile. 1987. «Managing pastures for grazing animals.» In:Feeding Livestock on Pasture. A. M. Nicol, ed. Hamilton: New Zealand Society of AnimalProduction. pp. 65 74.Shenk, M. D., and J. L. Saunders. 1983. «Insect population responses to vegetation managementsystems in tropical maize production.» In: No-tillage Crop Production in the Tropics. I. O.Akobundo and A. E. Deutsch, eds. Oregon: Int. Plant Protection Center. pp. 73 85.Shetty, S. V. R., and A. N. Rao. 1981. «Weed management studies in sorghum/pigeon pea and pearlmillet/groundnut intercrop systems some observations.» In: Proc. Int. Workshop on Intercropping,10 13 Jan. 1979. India: ICRISAT. pp. 238 248.Sikor, T. 1994. Participatory methods and empowerment in rural develop-ment: lessons from twoexperi- mental workshops with a Chilean NGO. Agriculture and Human Values 11(20): in press.Simon, J., and H. Kahn. 1985. The Resourceful Earth. New York: Oxford Press.Sluss, R. R. 1967. Population dynamics of the walnut aphid Chromaphis juglandicola (Kalt.) innorthern California. Ecology 48: 41 58.Smetham, M. L. 1973. «Grazing management.» In: Pastures and Pasture Plants. R. H. M. Langer,ed., New Zealand: A. H. & A. W. Reed.Smil, V. 1991. General Energetics: Energy in the Biosphere and Civilization. New York: JohnWiley & Sons.Smith, J. G. 1969. Some effects of crop background on populations of aphids and their naturalenemies on brussel’s sprouts. Annals of Applied Biology 63: 326 330.Smith, J. R. 1953. Tree Crops: A Permanent Agriculture. New York: Devin- Adair.

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