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NMSP: P-index
NYS P index calculator
The New York P index was developed by the NY P index Working Group.
Dissolved P   
Particulate P   
Management Category
Source Factor Your values
Soil test P (Morgan P in lbs/acre)
Fertilizer P application rate (lbs P2O5/acre)
Fertilizer P application timing
Fertilizer P application method
Organic P application #1 rate (lbs P2O5/acre)
Organic P application #1 timing
Organic P application #1 method
Organic P application #2 rate (lbs P2O5/acre)
Organic P application #2 timing
Organic P application #2 method
Dissolved P Transport Factor
Soil drainage class
Flooding frequency
Flow distance to blue line stream (feet)
Stream type (blue line on topomap or equivalent)
Particulate P Transport Factor
Erosion (RUSLE in tons/acre)
Flooding frequency [ value as entered above for Dissolved P ]
Flow distance to blue line stream (feet) [ value as entered above for Dissolved P ]
Stream type (blue line on topomap or equivalent) [ value as entered above for Dissolved P ]
Concentrated flow?








Dissolved P Index   
Particulate P index   
Management Category
 
Total Source Score
Soil test P contribution
Fertilizer P contribution
Organic P contribution
Total Dissolved Transport Score
Flow Distance Contribution
Total Particulate Transport Score
Erosion contribution
Flow distance contribution
Concentrated flow contribution

 

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Soil testing provides a means to predict the soil nutrient status before a crop is planted, thereby permitting more efficient use of fertilizer, lime, and manures. A complete soil test, with the appropriate interpretation of the results,