Fig 1.
Contains information from OpenStreetMap and OpenStreetMap Foundation, which is made available under the Open Database License.
Table 1.
Variable definitions and sources.
Table 2.
Input distributors lime cost predictions for different locations.
Fig 2.
Bivariate relationship between crops yields and soil pH.
Fig 3.
Estimated relationship between fertilizer use and soil pH for wheat.
Table 3.
Wheat & barley yield regression estimates.
Fig 4.
Estimated response of wheat yield to changes in pH.
Table 4.
Estimated yield gains from changing pH from 5.5 to 6.5.
Fig 5.
Marginal yield response of wheat yield to changes in fertilizer application holding pH at 5.5.
Fig 6.
Median yield impact of increasing pH from actual to 6.5 for moderately and highly acidic soils.
Table 5.
Average present value of lime and fertilizer applications required to obtain yield increase equivalent to moving pH from 5.5 to 6.5.
Fig 7.
Median regional fertilizer requirements to match lime application (minimum pH of 6.5) for moderately acidic soils.
Fig 8.
Median regional fertilizer requirements to match lime application (minimum pH of 6.5) for highly acidic soils.
Fig 9.
Present value ratios of fertilizer relative to lime application for wheat and barley.
Contains information from OpenStreetMap and OpenStreetMap Foundation, which is made available under the Open Database License.