Biological treatment of straw

BIOLOGICAL TREATMENT  OF STRAW

Karnal process

  • Technology developed at NDRI, Karnal. Straw treated with 4% urea at moisture level of 60%.
  • Stacked in a silo pit under cover for 30 days.
  • A temporary loose brick structure is constructed.
  • Thin layer of urea treated straw is spread evenly in this structure.
  • A solution of the following composition is prepared.
  • 60g superphosphate, 60g calcium oxide dissolved in 8 litre water.
  • Sprinkled over the urea treated straw.
  • Inoculated with 3% coprinus fimeratius culture.
  • Allowed to remain for 5 days then used for feeding.
  • Main advantage of this process is that urea a NPN compound is converted into microbial protein and degradation of lignin.
Last modified: Monday, 14 November 2011, 7:22 AM