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Effect of Relay and Traditional Sowing Methods on Yield and Economic Performance of Lentil in Transplant Aman Rice Field

Palash Mandal
Lecturer
Department of Agronomy and Haor Agriculture, Sylhet Agricultural University, Sylhet

Mrityunjoy Biswas
Associate Professor
Department of Agronomy and Haor Agriculture, Sylhet Agricultural University, Sylhet

M N H Miah
Professor
Department of Agronomy and Haor Agriculture, Sylhet Agricultural University, Sylhet

R K Dey
Development Officer (Agril.)
M Ahmed Tea & Lands Co. Ltd Sylhet, Bangladesh

Abstract/ Executive Summary:

An experiment was conducted at the farmer’s field of Sylhet during November 2012 to March 2013 to know the performance of lentil varieties viz. BARIMasur-3, BARIMasur-4, BARIMasur-6 and BARIMasur-7 under traditional and relay sowing methods with T. Aman rice. Design of the experiment was split plot assigning sowing methods in the main plots and varieties in the sub-plots. The results revealed that sowing methods produced significant effect on yield and yield contributing characters. Significantly lower seed yield was obtained from relay sowing than traditional method. All characters except plant height, number of branch plant^-1 and seed pod^-1 differed significantly among the varieties. The variety BARIMasur-7 produced the highest seed yield (541.6 kg ha^-1) which was mainly attributed by the highest number of pod plant^-1 and 100-seed weight. Interaction of sowing method and variety also exhibited significant effect on all characters except number of branch plant^-1, pod plant^-1 and seed pod^-1. Variety BARIMasur-7 produced the highest seed yield (614.8 kg ha^-1) followed by BARIMasur-4 (575.2 kg ha^-1) in the traditional method of sowing attributed by number of pod plant^-1and 100-seed weight. These two varieties performed better in both the sowing methods. BARIMasur-7 gave maximum gross margin (Tk. 7524 ha^-1) in relay method which was followed by gross margin (Tk. 5878 ha^-1) of the same variety in traditional method.

Keywords: Sowing method, Variety, Growth, Yield, Lentil

Location: The farmer’s field of village Bodikona under South Surma upazila of Sylhet district in Bangladesh

Start Date: 00-00-2012

End Date: 00-00-2013

Program Area: Crop-Soil-Water Management

Commodity: Rice, Lentil

Objectives:

To know the performance of lentil varieties viz. BARIMasur-3, BARIMasur-4, BARIMasur-6 and BARIMasur-7 under traditional and relay sowing methods with T. Aman rice.

Methodology:

The experiment was conducted at the farmer’s field of South Surma Upazila in Sylhet district, Bangladesh during rabi 2012-2013 to find out suitable lentil varieties under relay and traditional methods of sowing on Lentil-Fallow-T. Aman rice pattern. The experimental site belongs to the Agro-Ecological Zone (AEZ 20) of the Eastern Surma Kushiyara Floodplain. The experiment was laid out in a split-plot design with three replications assigning sowing methods (relay and traditional sowing method) in the main plots and varieties ( BARIMasur-3, BARIMasur-4, BARIMasur-6 and BARIMasur-7) in the sub-plots. The unit plot size was 4 m × 3 m. In relay method, lentil seed was sown 15 days before harvest of T. Aman rice in the standing rice field on 19 November 2012 at the rate of 50 kg ha^-1. In case traditional method, land was prepared properly through spading and then lentil seed was sown on 3 December, 2012 at the rate of 40 kg ha^-1. Rice plant was harvested retaining straw height 15-20 cm above the ground level for relay method of sowing. But in traditional method, rice plant was harvested at the ground level. Urea was top dressed at 20 and 40 days after emergence of seedlings at the rate of 25 kg ha^-1 in both sowing methods. One light flood irrigation was provided after one month of sowing for both the sowing methods. No weeding was done during crop growing period for relay cropping but one hand weeding was done at 25 days after sowing (DAS) in traditional sowing method. No disease incidence and insect infestation was found during the whole crop growing period. In case of both traditional and relay cropping, five plants were marked using a tag in each unit plot at 15 DAS and plant height was measured at 15 day intervals starting from 20 days after sowing up to harvest. Similarly five plants were collected by uprooting at 15 day intervals and dried in oven at 72°C until reach a constant weight and then dry matter accumulation of plant and crop growth rate were calculated. Crops were harvested at maturity depending on the maturity of different varieties. Five plants were collected randomly from each plot at maturity before harvest to collect data for yield attributes. Yield data were calculated on the whole plot basis adding the pod yield of five plants used for recording yield attributes. Collected data were analyzed statistically with the help of a computer based program MSTAT-C and mean separation was done at 5% level of significance following LSD test wherever F value was significant. Variable cost of cultivation, gross margin and BCR were calculated considering the wages of local labour and input prices and selling prices of seed at the harvesting time.

Source of Information: International Journal of Research in Agriculture and Forestry, Volume 2, Issue 1, PP 21-32, 2015

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Lentil can be grown in the study area as relay crop with T. Aman rice like North-western parts of Bangladesh. These two varieties performed better in both the sowing methods. BARIMasur-7 gave maximum gross margin (Tk. 7524 ha^-1) in relay method which was followed by gross margin (Tk. 5878 ha^-1) of the same variety in traditional method.

Knowledge Management: Journal