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Development of Alternate Cropping Patterns Against Existing Cropping Pattern (onion/maize-t.aman Rice) in High Ganges River Floodplain

Chief Scientific Officer & Head, OFRD and Relevant Scientists of OFRD

Abstract/ Executive Summary:

The experiment was conducted at farmers' field of Pali, Durgapur under MLT site, Puthia, Rajshahi during 2012-13 to study productivity, production efficiency, land use efficiency and economic return of cropping patterns in High Ganges River Floodplain. Three cropping patterns was tested in the study i.e., two improved cropping patterns over existing Onion/Maize-T. aman rice. The improved cropping patterns were Mustard-Onion/Maize-T.aman rice and Potato-Onion/Maize-T.aman rice. The experiment was laid in randomized complete block design with six dispersed replications. Yield of mustard was 1.56 t/ha in Mustard-Onion/Maize- T.aman rice and that of potato was 23.20 t/ha in Potato-Onion/Maize-T.aman rice. However, significant difference was not found in onion bulb yield among the cropping patterns. But numerically higher onion yield was observed in existing pattern Onion/Maize-T.aman rice.

Keywords: Alternate cropping patterns, Existing cropping pattern (Onion/Maize-T.aman Rice), Ganges River Floodplain

Location: Farmers' field of Pali, Durgapur under the multi location testing (MLT) site, Shibpur, Puthia, Rajshahi

Start Date: 00-00-2012

End Date: 00-00-2013

Program Area: Farming System

Non-commodity: Cropping pattern

Objectives:

To assess diversification and intensification of Onion/Maize-T.aman rice cropping pattern in terms of productivity, production efficiency, land use efficiency and economic return.

Methodology:

The experiment was initiated at the farmers' field of Pali, Durgapur under the multi location testing (MLT) site, Shibpur, Puthia, Rajshahi during 2012-13 to study the alternate cropping patterns against existing cropping pattern (Onion/Maize- T.aman rice) in High Ganges River Floodplain soils. Geographically the experimental field is located at 20024.49'N latitude and 88°47.20' E longitude with the elevation of 20 m above the sea level. Land was selected based on the discussion with local farmers, DAE personnel and available secondary information. The experimental soil was slightly alkaline (8.4) having low organic matter (1.78%). The soil contained 0.08% total N (very low), 25.85 ppm available P (optimum), 0.16 me% exchangeable K (low), 15.85 ppm available S (medium), 0.50 ppm available B (high) and 0.20 ppm available Zn (very low). The rates of the fertilizers for different crops were calculated using soil test values based (STB) on high yield goal as per Fertilizer Recommendation Guide' 2005 (BARC, 2005). The experiment was designed with three cropping patterns following randomized complete block design with six dispersed replications. The unit plot size was 8mx4m. The treatments were - C₁: Mustard-Onion/Maize-T. aman rice; C₂: Potato- Onion/Maize-T.aman rice and C₃: Onion/Maize-T.aman rice. Crop cycle was not completed till now. Mustard, potato and onion were harvested and maize crop was in 'flowering stage while T. aman rice would be planted after harvest of maize. For potato, one third of urea and all other inorganic fertilizers were applied according to individual plot and mixed with soil at the time of final land preparation. The rest of urea was top dressed at 25 and 35 days after sowing (DAS). For mustard, half of urea and all other inorganic fertilizers were applied according to individual plot and mixed with soil at the time of final land preparation. The rest of urea was top dressed before flowering just one day after first irrigation. In case of onion, half of urea and all other inorganic fertilizers were applied to individual plot and mixed with soil at the time of final land preparation. The rest of urea was top dressed at 30 days after sowing. All the crops were harvested at maturity from an area of central 6.0 m². Data on yield of various crops in sequences were recorded and converted into ton per hectare. Total pattern productivity was calculated as summation of individual (component) crop yield after completion of cropping cycle.

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

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

In Mustard-Onion/Maize-T.aman rice cropping pattern, yield of mustard was 1.56 t/ha. On the other hand, yield of potato was 23.20 t/ha in Potato-Onion/Maize- T.aman rice pattern. In the late Rabi season, onion was the common crop in all the patterns. There was no significant difference among the cropping pattern on the bulb yield of onion. However, numerically higher bulb yield was observed in the existing cropping pattern (Onion/Maize- T.aman rice).

Knowledge Management: Report/Proceedings