Articles
The use of nitrogen-rich nano-supplements affects substrate temperature, delays the production cycle, and increases yield of Pleurotus ostreatus
Article number
1327_110
Pages
831 – 840
Language
English
Abstract
Supplementation of the growing substrate affects the substrate temperature, the timing of consecutive harvests, and the production of oyster (Pleurotus ostreatus) mushroom.
The study investigated the effect of two nitrogen-rich supplements, Lithovit®-Amino25 and Lithovit®-Urea50, added in two doses (3 or 5 g kg-1), once (at spawning or after first flush) or twice (at spawning and after first flush) to the growing substrate.
In comparison with control (non-treated substrate), Lithovit®-Amino25 and Lithovit®-Urea50 added at spawning, increased the substrate temperature by 1°C (274.15 K), and by 1.4-2°C (274.55-275.15 K), respectively during the earliest mycelia run stage, but showed a progressively decreasing pattern at later stages of growth.
Overall, both products caused a delay in the timing of all mushroom growth stages.
Economic yield and biological efficiency (BE) increased by 233.8 g bag-1 and 27.3%, respectively following the double application of Lithovit®-Amino25, and by 162.4 g bag-1 and 19.6%, respectively following the double application of Lithovit®-Urea50. BE of the former treatment had a strong negative correlation with the period between the first and second harvests (R2=0.98), while BE of the second treatment showed a strong negative correlation with the substrate temperature between the first and third harvests (R2=0.98). Both treatments showed the highest organic matter loss (42.0 and 31.39%, respectively). Results concerning the effect of nitrogen supplementation on the substrate temperature contradicted early findings.
Nevertheless, the increase in mushroom production following the use of nitrogen-rich additives confirmed early results.
The study investigated the effect of two nitrogen-rich supplements, Lithovit®-Amino25 and Lithovit®-Urea50, added in two doses (3 or 5 g kg-1), once (at spawning or after first flush) or twice (at spawning and after first flush) to the growing substrate.
In comparison with control (non-treated substrate), Lithovit®-Amino25 and Lithovit®-Urea50 added at spawning, increased the substrate temperature by 1°C (274.15 K), and by 1.4-2°C (274.55-275.15 K), respectively during the earliest mycelia run stage, but showed a progressively decreasing pattern at later stages of growth.
Overall, both products caused a delay in the timing of all mushroom growth stages.
Economic yield and biological efficiency (BE) increased by 233.8 g bag-1 and 27.3%, respectively following the double application of Lithovit®-Amino25, and by 162.4 g bag-1 and 19.6%, respectively following the double application of Lithovit®-Urea50. BE of the former treatment had a strong negative correlation with the period between the first and second harvests (R2=0.98), while BE of the second treatment showed a strong negative correlation with the substrate temperature between the first and third harvests (R2=0.98). Both treatments showed the highest organic matter loss (42.0 and 31.39%, respectively). Results concerning the effect of nitrogen supplementation on the substrate temperature contradicted early findings.
Nevertheless, the increase in mushroom production following the use of nitrogen-rich additives confirmed early results.
Authors
L. Naim, Z. El Sebaaly, S. Abou Fayssal, M.A. Alsanad, R. Najjar, M.H. Yordanova, Y.N. Sassine
Keywords
substrate temperature, colonization, periods, harvest, oyster mushroom
Groups involved
- Division Plant Genetic Resources, Breeding and Biotechnology
- Division Tropical and Subtropical Fruit and Nuts
- Division Temperate Tree Fruits
- Division Vine and Berry Fruits
- Division Ornamental Plants
- Division Vegetables, Roots and Tubers
- Division Plant-Environment Interactions in Field Systems
- Division Greenhouse and Indoor Production Horticulture
- Division Postharvest and Quality Assurance
- Division Precision Horticulture and Engineering
- Division Horticulture for Human Health
- Division Temperate Tree Nuts
- Division Landscape and Urban Horticulture
- Division Sustaining Horticulture in a Changing World
- Working Group Humulus and Other Cannabaceae
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