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System Productivity of Wheat- Sesame-t. Aman Rice Cropping Pattern as Influenced by Varietal Replacement

M Maniruzzaman
On-farm Research Division, Bangladesh Agricultural Research Institute, Pabna, Bangladesh

M Robiul Alam
On-farm Research Division, Bangladesh Agricultural Research Institute, Pabna, Bangladesh

MS Islam
On-farm Research Division, Bangladesh Agricultural Research Institute, Pabna, Bangladesh

MZ Islam
On-farm Research Division, Bangladesh Agricultural Research Institute, Pabna, Bangladesh

MA Islam
On-farm Research Division, Bangladesh Agricultural Research Institute, Shampur, Rajshahi, Bangladesh

Abstract/ Executive Summary:

Keywords: Sustainable yield index, Production efficiency, Land use efficiency, Rice equivalent yield, Benefit cost ratio, Sustainable yield index

Location: Multi Location Testing site, Sujanagar, Pabna

Start Date: 00-00-2011

End Date: 00-00-2013

Program Area: Farming System

Commodity: Wheat, Sesame, Rice

Objectives:

To assist the farmers in the drought prone areas to increase their income using proper cropping pattern with modern high yielding crop varieties.

Methodology:

The study was carried out at Multi Location Testing site, Sujanagar, Pabna during two consecutive years of 2011-12 and 2012-13 growing season to assess the performance of the pattern with newly released crop varieties against the existing one usually practiced by the farmers with traditional varieties in order to increase yield and economic return. High yielding modern varieties of wheat, sesame and T. aman were advised to be included in place of traditional local varieties usually cultivated by farmers. Wheat (BARI Gom-26), sesame (BARI Til-4) and T. aman (Binadhan-7) were selected for inclusion in the improved pattern against wheat (BARI Gom-21), local sesame (charshira) and Sharna as T. aman used to be cultivated by the farmers in their traditional existing cropping pattern. The experiment was laid out in a randomized complete block design with six dispersed replications at farmer’s field. The agronomic practices and cultural operation of crop production under improved and existing cropping patterns are presented. All field operation and management practices were closely monitored. Yield and other relevant data were recorded carefully to make a comparison between the improved and existing pattern regarding yield and economic return. Agronomic performance viz. production efficiency, rice equivalent yield (REY) and sustainable yield index (SYI) of cropping patterns were calculated by the following formula: Production efficiency Production efficiency values in terms of kg ha-1 day-1 were calculated by total production in a cropping sequence divided by total duration of crops in that sequence. Production efficiency = y₁+y₂+y₃/d₁+d₂+d_3;Where, Y₁= Yield of 1^st crop and d₁= Duration of 1^st crop of the pattern Y₂= Yield of 2^nd crop and d₂= Duration of 2^nd crop of the pattern Y₃= Yield of 3^rd crop and d₃= Duration of 3^rd crop of the pattern; Sustainable yield index (SYI) =Y_mean- SD/Y_max x 100; Where, Y mean: Estimated mean yield of a practice over years; SD: Estimated standard deviation; Y max: Observed maximum yield in the experiment over the years. Rice Equivalent Yield (REY) For comparison between crop sequences, the yield of all crops was converted into rice equivalent on the basis of prevailing market price of individual crop. The economic indices like Gross return and net return and benefit cost ratio were also calculated on the basis of prevailing market price of the produces. Rice equivalent yield = For economic evaluation of two different cropping sequences averaged data of two crop cycles were used. The gross cost of cultivation of different crops was calculated on the basis of different operations performed and materials used for raising the crops. Gross margin, gross return and total cost of cultivation of the crops were calculated as well as benefit cost ratio (BCR) as per following formula: Benefit cost ratio (BCR) = Gross return (Tk. ha^-1)/ Total variable cost (Tk. ha^-1)

Source of Information: Bangladesh Agron. J. 2018, 21(2): 13-18

Article Link (Online Journal): DOI: https://doi.org/10.3329/baj.v21i2.44487

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Wheat-Sesame-T. aman rice is one of the major cropping patterns in Pabna region. This pattern could be more productive, sustainable and profitable if farmer cultivated modern high yielding varieties of wheat, sesame and T. aman rice. Therefore, the farmers of this locality should cultivate BARI Gom-26, BARI Til-4 and Binadhan-7 instead of BARI Gom-21, local charshira sesame and local cultiver Sharna in their Wheat-Sesame-T. aman rice cropping pattern for higher system productivity and profitability.

Knowledge Management: Journal