SnapPlus Help Version 18

Entering Biosolids and Organic By-products Data

Entering Biosolids and Organic By-products Data

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Entering Biosolids and Organic By-products Data

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Click on the link to watch the video tutorial Entering Biosolids .

SnapPlus allows planning and recording biosolids and organic by-products applications in the same way as manure and fertilizer applications. The laboratory analysis required for biosolids is different from the types of analysis information and “book values” used for manures. Entering biosolids information requires an extra step in SnapPlus. You will need the following information from the lab report: % Solids, Total Kjeldhal Nitrogen (TKN) as % of dry matter, Ammonia-N (NH3-N) as % of dry matter, and total P and K.  The Neutralizing Index is optional. If you want SnapPlus to account for the liming ability of the biosolid, then fill it in, and it will count towards meeting lime recommendations in the Lime Applications list (see Lime Recommendations ).  

How to Add Biosolids Data:

1.Under Manure/Bio Source Data, click NS_AddButton. This will open up the Add Manure Source dialog box.

2.Select the Biosolid from the right-side dropdown list, and then name the source by typing in the box on the right.

3.This will create a new row in the Manure/Bio Source Data table.  In the Nutrient Type column, there will be button, click on it or on any of the cells (N,P,K, P2O5, K2O, S or Dry Matter %)  to open the Biosolid Analysis Entry box.

KV Add Manure Source -- KV Manure-Bio Source Data table --

KV Biosolid analysis entry

Click on plus sign to expand topicBiosolid analysis entry box for biosolid, liquid:
Click on plus sign to expand topicBiosolid analysis information box for biosolid, solid:
Click on plus sign to expand topicDensity:

To leave the biosolids analysis entry box, click OK at the bottom of the box.  This will take you back to the Nutrient Sources screen. The biosolid will now be included in the drop-down list of nutrient sources that can be applied to that farm’s fields, as described in the This Year’s Manure section. Note that the available N Surface and N Incorporated are calculated as required for by Wisconsin regulations (NR214) for the application and two subsequent years.  The biosolids applications rules require that 2nd and 3rd year biosolid N credits be used.  SnapPlus will automatically fill in the correct 2nd and 3rd year N credits for biosolid applications on the Cropping screen regardless of whether or not 2nd and 3rd year credits have been selected on the Farm screen.

Biosolid available P2O5 and K2O credits are not defined by NR214 or in any UW-Extension recommendations. In the absence of more specific information, SnapPlus assumes that biosolids have the same percentage of total P2O5 and K2O available as manures according to UW-Extension publication A2809. The percentage assumed to be crop-available is 80% for both P2O5 and K2O in year 1. There are no year 2 and 3 credits for P2O5 or K2O.