共 18 条
[1]
BAUER A, 1966, 461 ND AGR EXP STN B
[2]
CAMPBELL R. E., 1965, SOIL SCI SOC AMER PROC, V29, P67
[3]
LARSEN S., 1967, Advances in Agronomy, V19, P151, DOI 10.1016/S0065-2113(08)60735-X
[4]
LEAMER ROSS W., 1963, SOIL SCI SOC AMER PROC, V27, P65
[5]
MANNERING JV, 1959, 41 U ID AGR EXP STN
[6]
SUPERPHOSPHATE ON WHEAT - CUMULATIVE EFFECT OF REPEATED APPLICATIONS ON YIELD RESPONSE
[J].
AUSTRALIAN JOURNAL OF AGRICULTURAL RESEARCH,
1968, 19 (01)
:1-&
[7]
MOSCHLER WS, 1957, SOIL SCI SOC AM P, V21, P293
[9]
OLSEN SR, 1954, USDA939 CIRC