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System Productivity of Rabi Vegetables and Aman Rice Varieties in Rabi Vegetables-mungbean-aman Rice Cropping Pattern

S. Mondal
Rice Farming Systems Division, Bangladesh Rice Research Institute, Gazipur, Bangladesh.

M. I. U. Mollah
Training Division, Bangladesh Rice Research Institute, Gazipur, Bangladesh.

M. H. Rashid
Rice Farming Systems Division, Bangladesh Rice Research Institute, Gazipur, Bangladesh.

S. Pramanik
Rice Farming Systems Division, Bangladesh Rice Research Institute, Gazipur, Bangladesh.

M. R. Dewan
Rice Farming Systems Division, Bangladesh Rice Research Institute, Gazipur, Bangladesh.

Abstract/ Executive Summary:

Field experiments were conducted during 2007-2010 to evaluate the agro-economic productivity of BRRI Aman rice varieties and Rabi vegetables at the Bangladesh Rice Research Institute (BRRI) in silty clay loam soil. Five Aman rice varieties having different growth durations and three winter vegetables viz., tomato, red amaranth and bush bean were evaluated in split plot design with three replications. Mungbean was grown in Kharif-I season. Rice varieties did not differ significantly in terms of grain yield (t ha^-1 ). Among the three vegetables, the yields of tomato, red amaranth and bush bean were 35.02, 7.53 and 4.33 t ha^-1, respectively. Average yield of Mungbean was 0.89 t ha^-1 . In case of rice equivalent yield (REY), Tomato-Mungbean-BRRI dhan33 cropping pattern produced comparatively high average REY (29.95 t ha^-1 ) followed by Tomato-Mungbean-BRRI dhan39 (27.33 t ha^-1 ) cropping pattern. Among the tested cropping patterns, Tomato-Mungbean-BRRI dhan33 and Tomato-Mungbean-BRRI dhan39 were more profitable than other patterns.

Keywords: System productivity, Cropping pattern, BRRI aman rice varieties, Rabi vegetables

Location: Bangladesh Rice Research Institute

Start Date: 00-00-2007

End Date: 00-00-2010

Program Area: Farming System

Commodity: Mungbean, Vegetables, Rice

Objectives:

To evaluate the agro-economic productivity of five BRRI Aman rice varieties differing in their growth duration as direct seeding and three early winter vegetables in Vegetable-Mungbean-Aman cropping pattern in partially irrigated highland ecosystem.

Methodology:

The experiment was conducted at Bangladesh Rice Research Institute (BRRI) experimental farm (24º 0^/ N 30º 30^/ ), Gazipur for three years from 2007 to 2010 during Kharif-II, Rabi and Kharif-I seasons. Five Aman rice varieties differing in their growth duration viz. BRRI dhan33 (118 days), BRRI dhan39 (122 days), BRRI dhan32 (130 days), BRRI dhan31 (140 days), and BRRI dhan44 (150 days) and three winter vegetables viz., tomato, red amaranth and bush bean were evaluated in split plot design with three replications. Mungbean was grown in Kharif-I season. Recommended management practices were followed for rice, vegetables and mungbean. Rice was sown on third week of June to first week of July and harvested in first to last week of October. Vegetables were established within first to third week of November. Harvesting of vegetables was started from first week of December and continued up to last week of February. Mungbean was sown from last week of February to second week of March and harvested up to third week of May. Yield of different crops were compared in terms of total rice equivalent yield (REY). The REY was computed by converting yield of non rice crops into the yield of rice following Singh et al. (1993) as follows: REY of the crop = {Yield of A (kg ha^-1 ) X Market price of A (Tk kg^-1 )/Market price of B (Tk ha^-1 ) Where, A= vegetables and mungbean B= rice}. A simple cost and return analysis was done based on total variable cost and average yield of different crops of tested cropping patterns to evaluate the total productivity of Vegetables-Mungbean-Direct seeded Aman rice cropping systems.. Cost of cultivation and farm gate prices of the produces at harvesting were used to compute gross return, gross margin and benefit cost ratio (BCR). All the collected data related to cropping pattern were subjected to analysis of variation (ANOVA) with the help of computer “MSTATC” program. The means were compared by using Duncan’s Multiple Range Test (DMRT).

Source of Information: The Agriculturists 10(2): 120-126 (2012),ISSN-1729-5211

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Direct seeding of short duration Aman rice BRRI dhan33 and BRRI dhan39 were more suitable for growing vegetables in the following season. In spite of high production cost, the highest return was obtained from tomato after direct seeding rice and mungbean could be grown successfully in the next Kharif-I season. Tomato-Mungbean- BRRI dhan33 and Tomato-Mungbean-BRRI dhan39 cropping patterns were more profitable which were followed by Tomato-Mungbean-BRRI dhan32 and Tomato-Mungbean-BRRI dhan31 cropping patterns.

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