Principles and practice of agricultural analysis. Volume 2 (of 3), Fertilizers

by Harvey Washington Wiley

[160] Vid. op. cit. supra, S. 161.

[161] Vid. op. cit. 35, S. 433.

[162] Vid. op. et. loc. cit. 28.

[163] Vid. op. cit. 29, S. 44.

[164] Bulletin No. 16, p. 51.

[165] Zeitschrift für analytische Chemie, Band 28, S. 188.

[166] Bulletin No. 35, p. 68.

[167] Bulletin No. 35, p. 202.

[168] Bulletin No. 112, Connecticut Agricultural Experiment Station, and Bulletin No. 35, p. 96.

[169] Guide pour le dosage de l’Azote, p. 14.