共 17 条
[2]
BAKER JB, 1975, P CENTRAL FOR TREE I, V9, P106
[3]
NUTRIENT USE BY 3 GEOGRAPHIC SOURCES OF EASTERN COTTONWOOD
[J].
CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE,
1979, 9 (04)
:532-534
[4]
BLACKMON BG, 1972, USDA SO143 FOR SERV
[5]
Bremner J.M., 1965, METHODS SOIL ANAL PA, P1149
[7]
CLONAL DIFFERENCES IN YIELD RESPONSE OF POPULUS DELTOIDES TO NITROGEN FERTILIZATION
[J].
SOIL SCIENCE SOCIETY OF AMERICA PROCEEDINGS,
1967, 31 (02)
:276-&
[8]
HANSEN EA, 1979, 1979 P S IMP INT HAR, P130
[9]
HEILMAN P, 1985, FOR SCI, V31
[10]
GENETIC-VARIATION AND PRODUCTIVITY OF POPULUS-TRICHOCARPA AND ITS HYBRIDS .2. BIOMASS PRODUCTION IN A 4-YEAR PLANTATION
[J].
CANADIAN JOURNAL OF FOREST RESEARCH-REVUE CANADIENNE DE RECHERCHE FORESTIERE,
1985, 15 (02)
:384-388