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Influence of Plant Extracted Pyroligneous Acid on Transplanted Aman Rice

S. M. Masum
Assistant Professor
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207

M. Malek
Farm Superintendent
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207

M. S. H. Mandal
Research Assistant
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207

M. N. Haque
Research Assistant
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207

Z. Akther
Research Assistant
Department of Agronomy, Sher-e-Bangla Agricultural University, Dhaka-1207

Abstract/ Executive Summary:

A field experiment was conducted with T. aman rice (BRRI dhan34) at the experimental field of Sher-e-Bangla Agricultural University during August to December 2012. There were six treatments viz., Control (no fertilizer and no PRH); 100% recommended dose of fertilizer; 100% recommended dose of fertilizer plus 100% PRH; 50% recommended dose of fertilizer plus 50% PRH; 50% recommended dose of fertilizer plus 100% PRH; and no fertilizer but 100% PRH. At harvest the highest plant height was obtained from 100% recommended dose of fertilizer application, whereas the lowest from control. The highest tillers hill^-1 was obtained from 50% recommended dose of fertilizer + 50% PRH application and the lowest from control but the highest effective tillers hill^-1 was obtained from 100% recommended dose of fertilizer application and the lowest from control. Grain yield was significantly the highest (5.05 t ha^-1) with 50% recommended dose of fertilizer + 50% PRH, whereas the lowest (2.55 t ha^-1) yield was obtained from control (no fertilizer + no PRH). The higher grain yield was attributed mainly due to highest number of effective tillers hill^-1, filled grains panicle^-1 and 1000-grain weight obtained from 50% recommended dose of fertilizer + 50% PRH.

Keywords: PRH, Wood vinegar, Pyroligneous acid and rice

Location: Experimental field of Sher-e-Bangla Agricultural University, dhaka, Bangladesh

Start Date: 00-08-2012

End Date: 00-12-2012

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

To find out the effect of plant extracted pyroligneous acid (vinegar like substance extracted from wood) with trade name PRH on T. aman rice (BRRI dhan34).

Methodology:

The field experiment was conducted at the Agricultural farm of Sher-e-Bangla Agricultural University, Dhaka-1207 during the period from August to December, 2012. The variety used in this experiment was BRRI dhan34. The experiment was laid out in a Randomized Complete Block Design with three replications. There were six treatments viz., T₁ = Control (no fertilizer and no PRH); T₂ = 100% recommended dose of fertilizer; T₃ = 100% recommended dose of fertilizer plus 100% PRH; T₄ = 50% recommended dose of fertilizer plus 50% PRH; T₅ = 50% recommended dose of fertilizer plus 100% PRH; and T₆ = no fertilizer but 100% PRH. Recommended dose of fertilizer for T. aman rice were Urea, TSP, MoP, Gypsum and Zinc Sulphate @ 120 kg ha^-1, 90 kg ha^-1, 40 kg ha^-1, 60 kg ha^-1 and 10 kg ha^-1 respectively. The 100% PRH was prepared by 200 ml PRH in 20 liter water, whereas 50% PRH was prepared by 100 ml PRH in 20 liter water. All fertilizers were applied during final land preparation except urea that applied in three equal splits at 7, 30 and 50 DAT. Foliar application of PRH using knapsack prayer were done three times at 7, 30 and 50 DAT. Thirty day old seedlings were uprooted and transplanted in the field on August 2, 2012. Three seedlings were transplanted in each hill with a spacing of 25 cm x 15 cm. The harvesting was done on December 29, 2012 manually from each plot. The crop was harvested plot-wise at full maturity when 90% of the grains turned into golden yellow. Hills from central 5 m² area of each plot were harvested for collecting data on grain and straw yields. The harvested crop was then bundled separately, tagged properly and brought to the threshing floor and processed as usual. Prior to harvest five hills were selected at random from each plot and carefully uprooted to collect data on yield and yield contributing characters. All the collected data were analyzed following the analysis of variance (ANOVA) technique using MSTAT package and the mean differences among the treatments were compared by Duncan’s Multiple Range Test (DMRT).

Source of Information: J. Expt. Biosci. 4(2):31-34, (2013)

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

50% recommended dose of fertilizer plus 50% PRH (T₄) showed better performance over other treatments in respect of yield and other attributes.

Knowledge Management: Journal