Growth requirements of Volvariella speciosa (Fr. ex. Fr.) Sing., a Nigerian mushroom

azote calcio calcium carbohidratos carbohydrates carbon carbone carbono champignon comestible cinc crecimiento croissance edible fungi glucide growing media growth magnesio magnesium manitol mannitol nitrogen nutrientes nutrients plant growth substances potasio potassium setas comestibles sodio sodium substance nutritive substrat de culture substratos de cultivo sustancias de crecimiento vegetal triptofano tryptophan tryptophane uses usos utilisation vitaminas vitamine vitamins volvariella zinc