Browse on keywords: fertility variable landscape management
Search results on 05/24/13
11224. Carr, P.M., G.R. Carlson, J.J Jacobsen, G.A. Nielsen, and E.O. Skogley. 1991. Farming soils, not fields: A strategy for increasing fertilizer profitability.. J. Prod. Agric. 4(1):57-61.
Grain yield and net returns were measured on individual soil units within a field and were found to vary significantly by soil type. When soil units were fertilized individually, there was improved returns in some fields but not others. Drought conditions may have influenced the results.