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Effect of Chemical Fertilizer Supplements with Rice Straw on the Growth and Yield of Oyster Mushroom (pleurotus Ostreatus)

M. H. RAHMAN
Lecturer
Department of Biochemistry, Sher-e-Bangla Agricultural University, Dhaka

K. U. AHMED
Professor
Department of Biochemistry, Sher-e-Bangla Agricultural University, Dhaka

T. S. ROY
Professor
Department of Agronomy, Faculty of Agriculture, Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka-1207, Bangladesh

M. S. H. MANDAL
MS Student
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207

Abstract/ Executive Summary:

The experiment was carried out at the Biochemistry Laboratory and Mushroom Culture House (MCH), Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during May to November 2009 to investigate the performance of different levels of chemical fertilizer (0, 0.3, 0.4, 0.5 and 0.6% N with 0.3% P₂O₅ and 0.3 % K₂O) as supplement with rice straw on the growth and yield of Pleurotus ostreatus. Among the parameters maximum mycelium growth rate in spawn packet (0.73 cm/day), the highest average number of primordia/packet (73.67), the highest average weight of individual fruiting body (4.56g), maximum biological yield (247.92g), economic yield (241.65g), dry yield (26.93g) and the highest biological efficiency (156.32 %) were found in rice straw supplemented with N (0.5%), P₂O₅ (0.3%) and K₂O (0.3%) chemical fertilizer. The lowest time from primordial initiation to harvest (3.17 days) and the highest average number of fruiting body/packet (58.02) were found in rice straw supplemented with N(0.4%),P₂O₅ (0.3%), K₂O (0.3%) chemical fertilizer.

Keywords: Chemical fertilizer, Rice straw, Growth and Yield

Location: Biochemistry Laboratory and Mushroom Culture House (MCH), Sher-e-Bangla Agricultural University, Dhaka

Start Date: 00-05-2009

End Date: 00-11-2009

Program Area: Crop-Soil-Water Management

Commodity: Mushroom

Objectives:

To investigate the performance of different levels of chemical fertilizer as supplement with rice straw on the growth and yield of Pleurotus ostreatus

Methodology:

The experiment was carried out at the Biochemistry Laboratory and Mushroom Culture House (MCH) of the Department of Biochemistry, Sher-e-Bangla Agricultural University, Dhaka Bangladesh during May to November 2009. Five different levels of chemical fertilizer (T₁= 0% (Control), T₂= N-0.3%, P₂O₅-0.3%, K₂O-0.3%; T₃= N-0.4%, P₂O₅-0.3%, K₂O-0.3%; T₄= N-0.5%, P₂O₅-0.3%, K₂O-0.3%; T₅= N-0.6%, P₂O₅-0.3%, K₂O-0.3%) were evaluated as the supplement to rice straw substrate of oyster mushroom. The experiment was laid out in Completely Randomized Design with three replications. Preparation of Spawn packets: Chemical fertilizers were mixed to rice straw according to the treatments. The spawn packets preparation, sterilization, inoculation and incubation were done using the method. The weight of each spawn packet was 500 g. Cultivation of spawn packet: Two ends, opposite to each other of the upper position of polypropylene (PP) bag were cut in "D" shape with a blade and opened by removing the PP sheet. The opened surface of substrate was scraped slightly with a tea spoon for removing the thin whitish mycelial layer. Then the spawn packets were soaked in water for 15 minutes and invested to remove excess water for another 15 minutes. The packets of each type were placed separately on the floor of culture room and covered with newspaper. The moisture of the culture room was maintained 80-85% relative humidity by spraying water 3 times in a day. The light around 300-500 lux and ventilation of culture house was maintained uniformly. The temperature of culture house was maintained 22°C to 25°C. The first primordia appeared 2-4 days after scribing depending upon the levels of supplement. The harvesting time also varied depending upon the levels of supplement. Data were collected on mycelial growth, Time from stimulation to primordial initiation, time from primordial initiation to harvest, average number of primordia/packet, average number of fruiting body/packet, average weight of individual fruiting body, biological yield, economic yield, dry yield, biological efficiency and benefit cost ratio. Dry yield and Biological efficiency were determined.

Source of Information: Int. J. Sustain. Agril. Tech. 9(2):47-51, 2013

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Rice straw supplemented with N-0.5%, P₂O₅-0.3%, K₂O-0.3% chemical fertilizer is the best among the applied treatments for locally grown popular oyster mushroom (Pleurotus ostreatus) variety in Bangladesh

Knowledge Management: Journal