Ammoniation of peat for fertilizers

[1] *ASS OFF AGR CHEM, 1931, OFF TENT METH AN, P24

[2] CARO N, 1931, Patent No. 347641

[3] CARO N, 1931, Patent No. 349004

[4] EHRENBERG C, 1929, Patent No. 507320

[5] ERASMUS P, 1928, Patent No. 514510

[6] FEUSTAL IC, 1933, DEP AGR TECH B, V214

[7] ODELL WW, 1926, BUR MINES B, V253, P7

[8] VORTMAN E, 1928, Patent No. 518792

[9] WALTON GP, 1932, Patent No. 1858230

[10] 1930, Patent No. 689041

[1] *ASS OFF AGR CHEM, 1931, OFF TENT METH AN, P24

[2] CARO N, 1931, Patent No. 347641

[3] CARO N, 1931, Patent No. 349004

[4] EHRENBERG C, 1929, Patent No. 507320

[5] ERASMUS P, 1928, Patent No. 514510

[6] FEUSTAL IC, 1933, DEP AGR TECH B, V214

[7] ODELL WW, 1926, BUR MINES B, V253, P7

[8] VORTMAN E, 1928, Patent No. 518792

[9] WALTON GP, 1932, Patent No. 1858230

[10] 1930, Patent No. 689041