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Development of Alternate Cropping Pattern T.aman-wheat-sesbania Against T.aman/relay Lentil-fallow in Southern Charland

Concerned scientists of OFRD

Abstract/ Executive Summary:

A study was carried out in the farmers' field at Talukderchar, Laher Hat, Barisal during 2012-13 to develop an alternate cropping pattern over the existing one. Two cropping patterns in the study were : T₁: Existing cropping pattern (T.aman-Relay Lentil - Fallow) and T₂: Alternate cropping pattern (T.aman - Wheat- Sesbania). T.aman - Wheat- Sesbania cropping pattern performed better and gave more gross margin of Tk.71,750Iha over T.aman/Relay Lentil - Fallow cropping pattern which gave Tk.35,650/ha)

Keywords: Alternate cropping pattern, Existing cropping pattern, Gross margin, Southern Charland

Location: Farmers' field at Talukderchar, Laher Hat, Barisal

Start Date: 00-00-2012

End Date: 00-00-2013

Program Area: Crop-Soil-Water Management

Non-commodity: Cropping pattern

Objectives:

To develop alternate cropping pattern (T.aman-Wheat-Sesbania) over existing one (T.aman-Relay Lentil-Fallow).

Methodology:

The experiment was carried out in the farmers' field at Talukderchar, Laher Hat, Barisal during 2012-13 to develop and alternate cropping pattern over existing one. It was laid out in RCBD with four dispersed replications. There were two treatments i.e, T₁: Existing cropping pattern (T.aman-Relay Lentil - Fallow) and T₂: Alternate cropping pattern (T.aman - Wheat- Sesbania). .The unit plot size was 8m x 5m. The lands were fertilized following as Fertilizer Recommendation Guide 2005 (BARC, 2005) for all crops. The trial was started with T.aman rice. Seedlings of Aman rice (BRRI dhan49) and local (Sada mota) were transplanted on 02 August 2012. Spacing was 20 cm x 15 crn, All intercultural operations were done in order to support normal plant growth. BRRT dhan 49 was harvested on 12 November 2012 and local was harvested 03 December 2012. As second crop of the pattern, wheat seeds of the variety BARI Gom-26 were sown on 25 November 2012. Intercultural operations were done as per WRC recommendations. Wheat was harvested on 15 March 2013. Lentil seeds were broadcasted on 05 November 2012 in local T.aman rice and were harvested on 02 March 2013. After wheat harvest 45 kg/ha sesbania was broadcasted on 03 April 2013. The plants were incorporated in soil at 55 days after sowing (29 May 2013). Incorporated sesbania rotted well by fortnightly tidal water submergance as well as rain full. All the data were statistically analyzed. The economic analysis was done for gross return and gross margin.

Source of Information: BARI OFRD Annual Research Report 2012-2013

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It was observed that BRRI dhan 49 matured 21 days earlier than local variety. It offered a chance to sow wheat within 30 November, BRRl dhan 49 also produced higher yield (3.47 t/ha) over the local variety (3,13 t/ha). Fresh sesbania biomass incorporated in the soil would help to increase OM status of the char land. From the cost and return analysis of the whole cropping pattern, ,the higher gross return was obtained from T.aman-wheat-Sesbania pattern over the existing pattern.

Knowledge Management: Report/Proceedings