Yerima BPK., Tiamgne AY., Van Ranst E. —
Response of Two Sunflower (Helianthus sp.) Varieties to Poultry Manure Fertilization on a Hapli-Humic Ferralsol at the Yongka Western Highlands Research Garden-Park (YWHRGP) Nkwen-Bamenda, Cameroon, Central Africa (Text in French),
p. 168-176. vol. 32 no 4
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