Ecological agriculture

Geier, B. 1997. Reflections on standards for organic agriculture. Ecology and Parming May-August 10-11. 

Pannell, D.J. and Glenn, N.A. 2000. A framework for the economic evaluation and selection of sustainability indicators in agriculture. Ecological Economics 33(1) 135-149. 

I. Organic farming. 2. Agricultural ecology. 3. Organic farming - Economic aspects. 

Schulten, H.-R. (1996). Direct pyrolysis-mass spectrometry of soils A novel tool in agriculture, ecology, forestry, and soil science. In Mass Spectrometry of Soils, Boutton,T. W., and Yamasaki, S., eds., Marcel Dekker, New York, pp. 373-436. 

The determination of the concentrations of elements in plant tissues is very important in a number of fields. These include agriculture, ecology, botanical exploration for minerals, and environmental surveys for pollutants. 

National Research Council Board on Agriculture, Ecologically Based Pest Management New Solutions for a New Century, National Academy Press, Washington, DC, 1996, 47. 

Jenkinson, D. S. 1982. The nitrogen cycle in long-term experiments. Philosophical Transaction of the Royal Society London B 296 563-571 Johnston, A. E. 1997. The value of longterm field experiments in agricultural, ecological, and environmental research. Advances in... 

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