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

অনুরূপ উপাদানগুলি

• Characteristics and genesis of volcanic ash soils in the Philippines /
  প্রকাশিত: (1988)
• Southern Highlands Highway volcanic ash soils /
  অনুযায়ী: Kiek, Sidney Noel
  প্রকাশিত: (1972)
• Evaluation of introduced vegetable varieties on volcanic ash soils in the Southern Highlands of Papua New Guinea /
  অনুযায়ী: Kanua, M. B.
  প্রকাশিত: (1985)
• Composting and crop production on volcanic ash soils in the Southern Highlands of Papua New Guinea /
  অনুযায়ী: Floyd, C. N.
  প্রকাশিত: (1987)
• Phosphate and potash fertilisation of sweet potato on volcanic ash soils in the Southern Highlands of Papua New Guinea /
  অনুযায়ী: Floyd, C.N
  প্রকাশিত: (1987)