Agriculture Reference
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effects on resource acquisition, photosynthesis and yield. Agriculture , Ecosystems
and Environment ,31, 155-72.
Lueschen,W.E.,Andersen, R.N., Hoverstad,T.R., & Kanne, B. K.(1993).Seventeen years of
cropping systems and tillage affect velvetleaf ( Abutilon theophrasti ) seed longevity.
Weed Science ,41, 82-6.
Macey,A.(ed.) (1992). Organic Field Crop Handbook. Ottawa, Ontario: Canadian Organic
Growers.
MacRae, R.J., & Mehuys, G.R.(1985).The effect of green manuring on the physical
properties of temperate-area soils. Advances in Soil Science ,3, 71-93.
Matheson, N., Rusmore, B., Sims, J.R., Spengler, M., & Michalson, E.L.(1991).
Cereal-Legume Cropping Systems: Nine Farm Case Studies in the Dryland Northern Plains ,
Canadian Prairies and Intermountain Northwest. Helena, MT: Alternative Energy
Resources Organization.
McEwen, J., Darby, R.J., Hewitt, M.V., & Yeoman, D.P.(1989).Effects of field beans, fallow,
lupins, oats, oilseed rape, peas, ryegrass, sunflowers and wheat on nitrogen
residues in the soil and on the growth of a subsequent wheat crop. Journal of
Agricultural Science (Cambridge) ,115, 209-19.
McLenaghen, R.D., Cameron, K.C., Lampkin, N.H., Daly, M.L., & Deo, B.(1996).Nitrate
leaching from plowed pasture and the effectiveness of winter catch crops in
reducing leaching losses. New Zealand Journal of Agricultural Research ,39, 413-20.
Mohler, C.L. (1991).Effects of tillage and mulch on weed biomass and sweet corn yield.
Weed Technology ,5,545-52.
Mohler, C.L., & Liebman, M.(1987).Weed productivity and composition in sole crops and
intercrops of barley and field pea. Journal of Applied Ecology ,24, 685-99.
Moody, K., & Drost, D.C.(1983).The role of cropping systems on weeds in rice. In
Proceedings of the Conference on Weed Control in Rice , 31 August-4 September 1981,
pp.73-86.Los Baños, Philippines: International Rice Research Institute.
Muschler, R.(1997).Shade or sun for sustainable coffee: a new angle on an old discussion.
Proceedings of the 18th Symposium of the Latin American Coffee Symposium , pp. 471-6.
San José, Costa Rica: Interamerican Institute for Agricultural Sciences - Central
American Program for Coffee Improvement (IICA-PROMECAFE).(in Spanish).
Nair, P.K.R.(1984). Soil Productivity Aspects of Agroforestry. Nairobi, Kenya: International
Council for Research on Agroforestry (ICRAF).
Natarajan, M., & Willey, R.W.(1980 a ).Sorghum-pigeonpea intercropping and the effects
of plant population density.1.Growth and yield. Journal of Agricultural Science
(Cambridge) ,95, 51-8.
Natarajan, M., & Willey, R.W.(1980 b ).Sorghum-pigeonpea intercropping and the effects
of plant population density.2.Resource use. Journal of Agricultural Science
(Cambridge) ,95, 59-65.
National Research Council (NRC) (1989). Alternative Agriculture. Washington, DC: National
Academy Press.
Nestel, D., & Altieri, M.A.(1992).The weed community of Mexican coffee agroecosystems:
effect of management upon plant biomass and species composition. Acta
Oecologica ,13, 715-26.
Norris, R.F., & Ayres, D.(1991).Cutting interval and irrigation timing in alfalfa: yellow
foxtail invasion and economic analysis. Agronomy Journal ,83, 552-8.
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