Nutrient supply in volcanic ash soils for foodcrop production in the Highlands of Papua New Guinea /

Míreanna comhchosúla

• Evaluation of introduced vegetable varieties on volcanic ash soils in the Southern Highlands of Papua New Guinea /
  de réir: Kanua, M. B.
  Foilsithe / Cruthaithe: (1985)
• Southern Highlands Highway volcanic ash soils /
  de réir: Kiek, Sidney Noel
  Foilsithe / Cruthaithe: (1972)
• Soil fertility in sweetpotato-based cropping systems in the Highlands of Papua New Guinea /
  Foilsithe / Cruthaithe: (2009)
• Phosphate and potash fertilisation of sweet potato on volcanic ash soils in the Southern Highlands of Papua New Guinea /
  de réir: Floyd, C.N
  Foilsithe / Cruthaithe: (1987)
• Composting and crop production on volcanic ash soils in the Southern Highlands of Papua New Guinea /
  de réir: Floyd, C. N.
  Foilsithe / Cruthaithe: (1987)