The availability of the nitrogen in farm manure under field conditions

[1] BARTHEL C, 1926, MEDDEL CENTRALANST F, P311

[2] BARTHEL C, 1924, MEDDEL CENTRALANST F, P269

[3] HALL AD, 1917, BOOK ROTHAMSTED EXPT

[4] HANSEN NA, 1928, TIDSSKR PLANTEVAL, V34, P373

[5] Conservation and availability of the nitrogen in farm manure [J]. SOIL SCIENCE, 1931, 31 (05) : 335 - 363

[6] Field experiments on the availability of nitrogenous fertilizers, 1923-1927 [J]. SOIL SCIENCE, 1928, 26 (01) : 1 - 25

[7] NIEMEYER PAUL, 1929, LANDW VERSUCHS STATIONEN [BERLIN], V108, P305

[8] 1924, OHIO AGR EXP STA B, V381

[1] BARTHEL C, 1926, MEDDEL CENTRALANST F, P311

[2] BARTHEL C, 1924, MEDDEL CENTRALANST F, P269

[3] HALL AD, 1917, BOOK ROTHAMSTED EXPT

[4] HANSEN NA, 1928, TIDSSKR PLANTEVAL, V34, P373

[5] Conservation and availability of the nitrogen in farm manure [J]. SOIL SCIENCE, 1931, 31 (05) : 335 - 363

[6] Field experiments on the availability of nitrogenous fertilizers, 1923-1927 [J]. SOIL SCIENCE, 1928, 26 (01) : 1 - 25

[7] NIEMEYER PAUL, 1929, LANDW VERSUCHS STATIONEN [BERLIN], V108, P305

[8] 1924, OHIO AGR EXP STA B, V381