Record: Raw material table with price, nitrogen percentage, measured moisture, and your reason for the nitrogen source.
List every straw, manure and bran source in reach with a price per quintal and its freshness.
Next to each, write its nitrogen percentage from the ICAR-DMR table.
Weigh 1 kg of each wet, sun-dry it three days, weigh again and note the moisture lost.
Squeeze-test a compost sample from a nearby farm and write which nitrogen source you would use and why.

