INFLUENCE OF UREA AND OTHER NITROGEN SOURCES ON GROWTH-RATE OF SCOTS PINE SEEDLINGS

[1] BOLLARD E. G., 1959, SYMPOSIA SOC EXPTL BIOL, V13, P304

[2] UREA AS SOLE SOURCE OF NITROGEN FOR PLANT GROWTH .I. DEVELOPMENT OF UREASE ACTIVITY IN SPIRODELA OLIGORRHIZA [J]. PLANTA, 1968, 83 (01) : 1 - &

[3] BRANTSEG A, 1967, SKOGSGODSLING NYA VE, V9, P3

[4] BROADBENT FE, 1958, SOIL SCI SOC AM P, P303

[5] BURSTROM H, 1937, KUNGL LANTBR AKAD HA, V1, P1

[6] TOXICITY AS CAUSE OF INEFFICIENCY OF UREA AS FERTILIZER .I. REVIEW [J]. JOURNAL OF SOIL SCIENCE, 1964, 15 (01): : 42 - &

[7] COURT MN, 1962, KUNGL LANTBR AKAD HA, V194, P1263

[8] EVERS F. H., 1964, Mitteilungen des Vereins fur Forstliche Standortskartierung, V14, P19

[9] EVERS H, 1963, Z BOT, V1, P61

[10] GASSER JKR, 1964, SOILS FERTILIZERS, V3, P175

[1] BOLLARD E. G., 1959, SYMPOSIA SOC EXPTL BIOL, V13, P304

[2] UREA AS SOLE SOURCE OF NITROGEN FOR PLANT GROWTH .I. DEVELOPMENT OF UREASE ACTIVITY IN SPIRODELA OLIGORRHIZA [J]. PLANTA, 1968, 83 (01) : 1 - &

[3] BRANTSEG A, 1967, SKOGSGODSLING NYA VE, V9, P3

[4] BROADBENT FE, 1958, SOIL SCI SOC AM P, P303

[5] BURSTROM H, 1937, KUNGL LANTBR AKAD HA, V1, P1

[6] TOXICITY AS CAUSE OF INEFFICIENCY OF UREA AS FERTILIZER .I. REVIEW [J]. JOURNAL OF SOIL SCIENCE, 1964, 15 (01): : 42 - &

[7] COURT MN, 1962, KUNGL LANTBR AKAD HA, V194, P1263

[8] EVERS F. H., 1964, Mitteilungen des Vereins fur Forstliche Standortskartierung, V14, P19

[9] EVERS H, 1963, Z BOT, V1, P61

[10] GASSER JKR, 1964, SOILS FERTILIZERS, V3, P175