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Economic Analysis of Sesbania Rostrata Intercropping

M.Rafiqul Islam
SSO
Agricultural Economics Division, BRRI,Gazipur

Dr. BAA Mustafi
PSO
Agricultural Economics Division, BRRI,Gazipur

Abstract/ Executive Summary:

BRRI had been conducting agronomic experiments for many years to determine the potentiality of a number of green manure (GM ) crops in rice and found that 60-day-old S. rostrata (dhaincha) added 252 kg N/ha to a soil when ploughed down as GM. The study was, therefore, undertaken to determine the effect of S. rostrata intercropping with rice on rice yield, and identify the profitable cropping pattern in the T.Aus-T.Aman cropping system. A field experiment was conducted jointly by the Agronomy and Agricultural Economics Division of BRRI during the T.Aus and T.Aman seasons at BRRI farm. There were altogether 12 treatments. Data for different activities were recorded at the time of respective operations. Price of inputs and outputs as well as wage rate were taken according to the prevailing market price.Economic analysis of Sesbania rostrata (dhaincha) intercropping with rice showed that treatment T₇ (PR rice + 60 kg N/ha) had the higher marginal rate of return (MRR) in comparison to all other treatments. Thus, T₇was the most profitable pattern and treatments with green manure (GM) intercropping were not economically viable.

Keywords: Economic analysis, Sesbaniarostrata, Intercropping, Green manure

Location: BRRI, Gagipur

Start Date: 00-00-1995

End Date: 00-00-1996

Program Area: Socio-economic and Policy

Non-commodity: Organic fertilizer

Objectives:

To determine the effect of S. rostrata intercropping with rice on rice yield, and
To identify the profitable cropping pattern in the T.Aus-T.Aman cropping system

Methodology:

A field experiment was conducted jointly with the Agronomy Division of BRRI during the T. Aus and T. Aman seasons at BRRI farm. There were altogether 12 treatments (. T₁= PR rice GM (1:1), T₂= PR rice GM (1:2), T₃= T₁+N₃₀ from urea, T₄ = T₂ + N₃₀ from urea, T₅ = PR rice + N₀ (cont), T₆ = PR rice + N₃₀, T₇ = PR rice +N₆₀, T₈ = PR rice + N₉₀, T₉ = PR rice + N₁₂₀, T₁₀ = SR rice + N₀ (cont), T₁₁ =T₁₀ + GM in every 4 row rice (1:1) and T₁₂ = T₁₀ + GM in every 4 row rice (1:2) PR = Paired row.TSP, MP and Gypsum was used in all treatments at the rate of 125, 66.67 and 46.88 kg/ha). Data for different activities were recorded at the time of respective operations. Quantity and unit price of inputs and outputs as well as wage rate were taken according to the prevailing market price. The marginal rate of return (MRR0 from different treatment were calculated to find out the most profitable pattern.

Source of Information: BRRI Annual Report,1996, page no.168-172, BRRI,Gazipur-1701,Bangladesh

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Economic analysis of Sesbania Rostrata (dhaincha) intercropping with rice showed that treatment PR rice + 60 kg N/ha had the higher marginal rate of return (MRR) in comparison to all other treatments. Thus, PRrice + 60kgN/ha was the most profitable pattern and treatments with green manure (GM) intercropping were not economically viable.

Knowledge Management: Report/Proceedings