PROTON-RESONANCE SPECTRA OF HUMIC ACIDS FROM SOLUM OF A PODZOL

[1] A NEW EXPERIMENTAL APPROACH TO HUMIC ACID PROBLEM [J]. NATURE, 1963, 198 (487) : 217 - &

[2] FELBECK GEORGE T., 1965, SOIL SCI SOC AMER PROC, V29, P48

[3] LENTZ H, 1971, 5 T INT S HUM PLANT, P241

[4] Ludemann H.-D., 1973, ERDOL KOHLE ERDG PET, V26, P722

[5] LUDEMANN HD, 1973, ERDOL KOHLE ERDGAS P, V26, P506

[6] ROCHUS W, 1965, MITT DT BODENK GES, V4, P301

[7] SCHNITZER M, 1972, HUMIC SUBSTANCES ENV, P83

[1] A NEW EXPERIMENTAL APPROACH TO HUMIC ACID PROBLEM [J]. NATURE, 1963, 198 (487) : 217 - &

[2] FELBECK GEORGE T., 1965, SOIL SCI SOC AMER PROC, V29, P48

[3] LENTZ H, 1971, 5 T INT S HUM PLANT, P241

[4] Ludemann H.-D., 1973, ERDOL KOHLE ERDG PET, V26, P722

[5] LUDEMANN HD, 1973, ERDOL KOHLE ERDGAS P, V26, P506

[6] ROCHUS W, 1965, MITT DT BODENK GES, V4, P301

[7] SCHNITZER M, 1972, HUMIC SUBSTANCES ENV, P83