共 16 条
[1]
ANSLOW R. C., 1962, JOUR BRIT GRASSLAND SOC, V17, P260
[3]
AUBERTIN G. M., 1965, SOIL SCI SOC AMER PROC, V29, P363
[4]
BROUWER R., 1962, NETHERLANDS JOUR AGRIC SCI, V10, P399
[5]
ROOT TRACING BY 2-LAYER RADIOISOTOPE APPLICATION
[J].
INTERNATIONAL JOURNAL OF APPLIED RADIATION AND ISOTOPES,
1966, 17 (10)
:573-+
[6]
DERNAN DSH, 1962, NEW PHYTOL, V61, P1
[7]
KITTOCK D. L., 1959, Agronomy Journal, V51, P512
[8]
KLEINENDORST A., 1965, Jaarboek. Instituut voor biologisch en scheikundig Onderzoek van Landbouwgewassen 1965, P29
[9]
LOVVORN RL, 1945, J AM SOC AGRON, V37, P570
[10]
Plummer A. Perry, 1943, JOUR AMER SOC AGRON, V35, P19