Influence of formaldehyde-treated soybean and commercial nutrient supplementation on mushroom (Pleurotus sajor-caju) yield and in-vitro dry matter digestibility of spent substrate |
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Authors: | D J Royse S L Fales K Karunanandaa |
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Institution: | (1) Department of Plant Pathology, The Pennsylvania State University, University Park, 16802 Pennsylvania, USA;(2) Departments of Agronomy, The Pennsylvania State University, University Park, 16802 Pennsylvania, USA |
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Abstract: | Summary
Pleurotus sajor-caju 537 was grown on chopped, pasteurized wheat straw non-supplemented and supplemented with formaldehyde-treated soybean, commercial delayed-release nutrient (SpawnMate II SE) or vegetable oil. Yield was 2.1-fold higher for substrate supplemented (12% dry wt) with low-volume formaldehyde-treated soybean as compared to non-supplemented substrate. Mushroom yield from substrate supplemented with commercial nutrient was 1.7-fold higher than yield from non-supplemented substrate. As the supplement level increased, the mushroom yield response increased. The yield ranged from 3.56 kg/m2 for non-supplemented substrate to 7.36 kg/m2 for substrate supplemented (12% dry wt) with formaldehyde-treated soybean. The type of supplement affected in vitro dry matter digestibility (IVDMD) of spent substrate; commercial supplement resulted in higher IVDMD compared to formaldehyde-treated substrate. An opportunity exists for commercial development of a nutrient(s) specifically designed for Pleurotus cultivation. |
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