共 7 条
[1]
BREMNER JM, 1965, METHODS SOIL ANAL 2, V9, P1179
[4]
EFFECTS OF NITROGEN SOURCE AND PHOSPHORUS ON CRESTED WHEATGRASS GROWTH AND WATER USE
[J].
JOURNAL OF RANGE MANAGEMENT,
1970, 23 (03)
:175-&
[5]
EFFECT OF MOISTURE ON FERTILIZER NITROGEN IMMOBILIZATION IN GRASSLANDS
[J].
SOIL SCIENCE SOCIETY OF AMERICA PROCEEDINGS,
1967, 31 (02)
:223-&
[6]
MINERALIZATION OF NITROGEN IN GRASS ROOTS
[J].
SOIL SCIENCE SOCIETY OF AMERICA PROCEEDINGS,
1968, 32 (05)
:673-&
[7]
SMIKA D. E., 1965, AGRON J, V57, P483