WEIGHT AND NITROGEN PHOSPHOROUS POTASSIUM AND CALCIUM CONTENT OF FOREST FLOOR HUMUS OF LODGEPOLE PINE STANDS IN COLORADO

[1] ALEXANDER RR, 1966, RM24 US FOR SER RES

[2] BLACK CA, 1965, METHODS SOIL ANAL ED, pCH83

[3] BRAY J. R., 1964, Bull. bibliographique Pedol. ORSTOM, V15, DOI 10.1016/S0065-2504(08)60331-1

[4] BREMNER JM, 1965, METHODS SOIL ANALY 2, pCH83

[5] DAUBENMIRE R, 1943, BOT REV, V43, P325

[6] A KEY FOR THE CLASSIFICATION OF FOREST HUMUS TYPES [J]. SOIL SCIENCE SOCIETY OF AMERICA PROCEEDINGS, 1952, 16 (04): : 368 - 370

[7] Jackson ML, 1958, SOIL CHEMICAL ANALYS

[8] JOHNSON D. D., 1965, ADVANCE AGRON, V17, P233

[9] Livens J., 1957, Agricultura, Louvain (Ser. 2), V5, P99

[10] MANAKOV KN, 1962, POCHVOVEDENIE, V4, P55

[1] ALEXANDER RR, 1966, RM24 US FOR SER RES

[2] BLACK CA, 1965, METHODS SOIL ANAL ED, pCH83

[3] BRAY J. R., 1964, Bull. bibliographique Pedol. ORSTOM, V15, DOI 10.1016/S0065-2504(08)60331-1

[4] BREMNER JM, 1965, METHODS SOIL ANALY 2, pCH83

[5] DAUBENMIRE R, 1943, BOT REV, V43, P325

[6] A KEY FOR THE CLASSIFICATION OF FOREST HUMUS TYPES [J]. SOIL SCIENCE SOCIETY OF AMERICA PROCEEDINGS, 1952, 16 (04): : 368 - 370

[7] Jackson ML, 1958, SOIL CHEMICAL ANALYS

[8] JOHNSON D. D., 1965, ADVANCE AGRON, V17, P233

[9] Livens J., 1957, Agricultura, Louvain (Ser. 2), V5, P99

[10] MANAKOV KN, 1962, POCHVOVEDENIE, V4, P55