Liebhardt, W. (2014) Moving beyond the soil test. Renewable Agriculture and Food Systems. pp. 1-3.
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Abstract
Good research—whether original, incremental or synthesizing—both satisfies with greater understanding of the world’s complexity and suggests new questions. This paper does both. It demonstrates that exchangeable K, the standard for evaluating K in soils, does not predict plant available K and that soil testing alone should not guide farmers in nutrient augmentation—yet another compelling reason to review the efficacy of soil testing in an age when excess agricultural nutrients are a major pollution source and cost producers and consumers. But why, after so many excellent pieces of work, is this still an issue? Without belaboring the points made in this paper, I offer Ireland, a small island, as a case study where long-term systematic research identified this problem, formed a consensus and took action.
| Item Type: | Article |
|---|---|
| Author Affiliation: | Former Director, University of California, Davis, Sustainable Agriculture Research and Education Program, Davis, CA USA. |
| Subjects: | Soil Science and Microbiology > Soil Sciences |
| Divisions: | General |
| Depositing User: | Mr T L Gautham |
| Date Deposited: | 17 Jun 2014 09:24 |
| Last Modified: | 17 Jun 2014 09:24 |
| Official URL: | http://dx.doi.org/10.1017/S1742170514000118 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/13199 |
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