H and Na are other cations normally present in the soil. However, typically this approach fails to consider the cost and economics of such an application nor does it take into account excessively high levels of cations. The nutrient value of any manure application you may have indicated on your sample submission form has been accounted for by the computer when calculating your fertilizer application rates by making an appropriate reduction in your fertilizer rates. This will reduce your fertilizer costs, maximize your returns from your farm operation and help prevent nitrate and phosphate leaching and runoff into streams and groundwater. Notice that the amounts of nitrogen to subtract are higher for spring applied manure than fall applied manure.
Any sod containing a legume that is plowed down adds nitrogen to the soil.
The nitrogen value of any sod plowdown you may have indicated on your sample submission form will also have been accounted for by the computer when calculating your fertilizer application rates by making an appropriate reduction in your fertilizer rates. If you did not provide the lab with sod information, then Table Three will also give you the appropriate amounts of nitrogen to be subtracted from the suggested application listed on your soil test report. Please read our Copyright and Privacy Policies .