About Kakplan contains a range of calculators to help answer questions about the use of  animal manure as a fertiliser or soil ameliorant. The outputs include calculations such as nutrient addition, nutrient value versus mainstream mineral fertilisers and potential salinity effect.
  General White cells  can be edited or changed.
  Analysis and Rate Tab Input: Enter the moisture % of the sample. If the product  is to be spread on a per cubic meter basis enter the bulk density (otherwise leave as value as 1). Enter the target application rate. Enter the nutrient analysis values from the laboratory analysis or suppliers certificate.
Output: The numbers on the right hand side of the table are the total nutrient quantities applied at the target rate.
  Cost and Value Tab Input: Enter the cost of the standard fertilisers being replaced and the analysis. Enter cost of manue ex the pickup point, freight and spreading cost.
Output: Compare manure total cost with Equivalent Fertiliser Nutrient Value ($). If the manure cost per tonne is less than the fertiliser value in the manure, using manure will be the lowest cost nutrient option.
  Targetted Input Calculator Tab The calculator on this tab is useful when determining what rate of a manure to use in appling a targeteted nutrient rate.Input: Select the target nutrient from the drop down menu and input the rate of that nutrient required.
Output: is the rate of manure required and the rate of other nutriens also applied.
  Soil Salinity In the short term the salinity of the soil in the zone of manure incorporation may be increase by the salt content (EC) of the manure applied. The increase in salinity is related to the rate of manure applied, its salinity andt he depth to which it is incorprated. On this tab the likely increase in soil salinity in the absence of leaching is calculated. This should be interpreted togther with the soil salinity before manure application.
  Disclaimer The evaluation and recommendation reports provided here are a guide only, and depend on representative samples being analysed. Additionally environmental and managerial factors influence performannce therefore as suppliers of this decision support we do not accept any liability whatsoever arising from the application of recommendations, for any damage, loss or injury of any nature and the user takes these evaluations and recommendations on these terms. This recommendation is made in good faith, based on the best technical information available.
© Back Paddock Company 2015
  Lab Number      
  Manure Type      
  Sample moisture %      
  Application Rate (t/ha) @ sample moisture      
    Lab  Analysis  Dry (w/w)                        Wet Analysis             % Nutrient Applied (kg/ha)  
  Nitrogen %   
  Phosphorus %  
  Potassium %  
  Sulfur %  
  Calcium %  
  Magnesium %  
  Sodium %  
  Chloride %  
  Zinc mg/kg  
  Iron mg/kg  
  Manganese mg/kg  
  Copper mg/kg  
  Boron mg/kg  
  Organic Matter %  
  Electrical Conductivity dS/m      
  Organic Carbon %      
  Estimate Organic Carbon %    
  Estimated C/N ratio      
   Unit Converter        
  Nutrient mg/kg or ppm Nutrient %      
  © Back Paddock Company 2015        
  Product   Fertiliser Price   ($/t) Nitrogen         % Phosphorus            % Potassium         % Sulfur                 % Other
Unit Nutrient Cost ($/kg)  
  Straight Nitrogen          
Does not value sulfur content
Does not value other nutrients in K product
[No canvas support]
    Manure Fertilizer             
  Cost ($/t) ex pile              
  Freight ($/t)              
  Spreading ($/t)              
  Cost per ha              
  Total cost ( $ per tonne)            
  Relative value            
  Value ratio              
  © Back Paddock Company 2015                
  Target Nutrient Target Rate (kg/ha)  
  Required Manure Rate  (t/ha)
  Nutrient Other Nutrients Applied @ Target Nutrient Rate (kg/ha)  
  © Back Paddock Company 2015    
  © Back Paddock Company 2013    
  Estimated incorporation depth ( cm) 10 cm    
  Soil Bulk Density 1      
  Manure Application Rate t/ha    
  Estimated soil salinity increase (EC 1:5 water) dS/m to cm
© Back Paddock Company 2013