Bibliography on magnesium, nitrpgen, phosphorus and sulphur levels in crops showing deficiency symptoms (1963 - 1956)
Bibliography on magnesium, nitrpgen, phosphorus and sulphur levels in crops showing deficiency symptoms (1963 - 1956)
- England Commonwealth Bureau of Soils 1963
- 9p.
- Commonwealth Bureau of Soils;No.647 .
016:631.81.095.338:631.811.1' 2' 6' 7:633 1956/63 K3
016:631.81.095.338:631.811.1' 2' 6' 7:633 1956/63 K3


