[6]
Accumulation of heavy metals in soils and plants after long-term use of fertilizers and fungicides in Tanzania[J] . E. Semu,B. R. Singh.Fertilizer Research . 1995 (3)
[6]
Accumulation of heavy metals in soils and plants after long-term use of fertilizers and fungicides in Tanzania[J] . E. Semu,B. R. Singh.Fertilizer Research . 1995 (3)