Micronutrient assessment at the country level : an international study /
Sillanpaa, Mikko.
Micronutrient assessment at the country level : an international study / Mikko Sillanpaa. - Rome : FAO, c1990. - vi, 208 p. : ill.
9251029555
91013209
Soil fertility.
Soil-Surveys.
Trace elements.
Micronutrient fertilizers
Micronutrient assessment at the country level : an international study / Mikko Sillanpaa. - Rome : FAO, c1990. - vi, 208 p. : ill.
9251029555
91013209
Soil fertility.
Soil-Surveys.
Trace elements.
Micronutrient fertilizers