haku: @freeterm pest management / yhteensä: 2
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| Tekijä: | Wossink, G. A. A. Rossing, W. A. H. |
| Otsikko: | On increasing returns and discrete choice: Integrating production ecological principles in economic analysis of crop management |
| Lehti: | Journal of Environmental Management
1998 : NOV, VOL. 54:3, p. 233-247 |
| Asiasana: | ECOLOGY PRODUCTION INPUT-OUTPUT ANALYSIS AGRICULTURE |
| Vapaa asiasana: | PEST MANAGEMENT NUTRIENT RESPONSE PRODUCTION ECOLOGY ENVIRONMENTAL EFFECTS |
| Kieli: | eng |
| Tiivistelmä: | This study develops a model of pesticide and nutrient response based on the biological and physical processes governing agricultural ecosystems. The main implications for pesticides are that the marginal returns for an individual crop depend on potential yield level, growth conditions and pest incidence. and on the relative curvature of the control and damage functions. The properties of functional forms used in the literature imply increasing returns to the control input which reduces the control decision to a binary one.The choice set consists of discrete options which are site specific because of the interaction with the prevailing growing conditions. The analogous conclusions hold for nutrient inputs when considered jointly. |
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