Agro-ecosystem

K. Paustian, O. Andren, M. Clarholm, A-C. Hansson, G. Johan.sson, J. Lagerlof, T. Lindberg, R. Pettersson, and B. Sohlenius, Carbon and nitrogen budgets of four agro-ecosystems with annual and perennial crops, with and without N fertilization, J. Appl. Ecol. 27 60 (1990). 

Fig. 8 Overview of contaminant flows in a model agro-ecosystem to the food chain [69]...

Diversity of agro-ecosystem Many fertile generative luminescence a JS 4)... 

Since the problem of objectively and effectively assessing agro-ecosystems quality has been impending on scientists for decades, quite a number of indicators have... 

Torbert HA, Prior SA, Rogers HH, Wood CW (2000) Review of elevated atmospheric C02 effects on agro-ecosystem Residue decomposition processes and soil C storage. Plant Soil 224 59-73... 

Parr, J.F., Papendick, R.I. and Youngberg, LG. 1983. Organic farming in the United States principles and perspective. Agro-Ecosystems 8 183-201. 

Welbaum, G.E., Sturtz, A.V., Dong, Z. and Nowak, J. 2004. Managing soil microorganisms to improve productivity of agro-ecosystems. Critical Reviews in Plant Sciences 23 175-193. 

M. (eds) Weed Management in Agro ecosystems Ecological Approaches. CRC Press, Boca... 

Goudrian J. van Keulen H. and van Laar H.H. (eds.) (1990). The Greenhouse Effect and Primary Productivity in European Agro-ecosystems. Pudoc, Wageningen, 90 pp. 

Rohde, W.A., L.E. Asmussen, E.W. Hauser, M.L. Hester, and H.D. Allison (1981). Atrazine persistence in soil and transport in surface and subsurface runoff from plots in the coastal plain of the southern United States. Agro-Ecosystems, 1 225-238. 

Sturz A. V., Christie, B.R. Beneficial microbial allelopathies in the root zone die management of soil quality and plant disease with rhizobacteria. Soil Agro-ecosystems Impacts of Management on Soil Health and Crop Diseases - Special Issue. Soil Till Res 2003 72 107-123. 

Therefore, A. conyzoides has been advocated for intercropping in citrus orchards and utilized on more than 150,000 ha of citrus orchards in South China and gave substantial ecological and economic benefits (Liang and Huang, 1994). It is an excellent example of applied aspects of allelopathy in agro-ecosystem. 

Manlay, R.J. Kaire, M. Masse, D. Chotte, J.L. Ciornei, G. and C. Floret (2002) Carbon, nitrogen and phosphorus allocation in agro-ecosystems of a West African savanna. I. The plant component under semi-permanent cultivation.-Agriculture, Ecosystems and Environment 88, 215-232. 

Human populations have been exposed to POPs by consuming contaminated animal-source foodstuffs. The incidents have shown that feedstuffs can be contaminated by toxic substances that resembled mineral supplements, and mineral and fat supplements are vehicles for POPs. Contamination of feedstuffs also caused dissemination of POPs in the agro-ecosystem. Past experiences have shown that delays can occur before the contamination is recognized. 

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