共 10 条
[1]
BARKER AV, 1972, J AM SOC HORTIC SCI, V97, P27
[2]
GILLIAM CH, 1978, HORTSCIENCE, V13, P301
[3]
KOTZE WAG, 1977, J AM SOC HORTIC SCI, V102, P279
[4]
MAYNARD DN, 1969, J AM SOC HORTIC SCI, V94, P235
[5]
AMMONIUM AND NITRATE AS NITROGEN SOURCES FOR PINUS RADIATA AND PICEA GLAUCA
[J].
SOIL SCIENCE SOCIETY OF AMERICA PROCEEDINGS,
1968, 32 (06)
:879-+
[6]
MEYER MM, 1965, P AM SOC HORTIC SCI, V87, P537
[7]
PETERSON L. A., 1964, AGRON J, V56, P89
[8]
SHEAR CB, 1971, J AM SOC HORTIC SCI, V96, P234
[9]
SHEAR CB, 1953, USDA1085 TECH B