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Effect of Tillage on Yield and Economic Return of Wheat

M. Abdullah
Principal Scientific Officer
Bangladesh Agricultural Research lnstitute, Gazipur 1701 , Dhaka, Bangladesh

R. Rabbani
Senior Scientific Officer
Bangladesh Agricultural Research lnstitute, Gazipur 1701 , Dhaka, Bangladesh

R. A. Mondol
Scientific Officer
Bangladesh Agricultural Research lnstitute, Gazipur 1701 , Dhaka, Bangladesh

M. A. Zaman
Professor
Department of Farm Power and Machinery, Bangladesh Agricultural University. Mymensingh 2202, Bangladesh

Abstract/ Executive Summary:

The Present study was conducted at the Regional Agricultural Research Station, Jamalpur during the period from 1987€8 to 1990-91 to find out the suitable tillage method and number of passes for wheat cultivation under irrigated condition. Three tillage methods (Tractor, Power tiller and indigenous) each with 2, 4, 6 and 8 number of passes were tested. The effect of tillage methods on wheat yield were not significant. Four and six number of passes gave the higher yields over 2 and I passes. The highest benefit ratio was obtained from the tractor method. The tractor and power tiller were found 14 and 4 times faster than the animal drawn country plough in land preparation, respectively. Considering the economic return, speed of work and timeliness of land preparation, 2 passes by tractor and 4 passes by power tiller were suitable for wheat cultivation under irrigated condition.

Keywords: Tillage method, Tractor, Power titter, Yield, Ploughing cost

Location: Jamalpur

Start Date: 00-00-1987

End Date: 00-00-1991

Program Area: Farm Mechanization

Commodity: Wheat

Objectives:

To know the effect of land preparation by tractor, power tiller and country plough and the optimum number of ploughing to have maximum yield as well as the highest economic return.

Methodology:

The experiments were conducted on medium high land of Reoional Aqricultural Research Station, Jamalpur (24:560 ru, a5.ss0 E) during the period from 1987-88 to 1990-91. The soil of the experimental site was of gray flood plain type and the texture was sandy loam with PH of 6.5. The experimental plots were laid out in split-plot design with three replications for each tillage method and the number of passes. Each tillage method were used with 2,4, 6 and.8 number of passes. The unit plot size was 8 m x 8m. In case of tractor tillage method, the primary tillage operation was done by disk plough with field capacity of 0.35 ha/hr and secondary tillage operations were done by disk harrow with field capacity of 0.60 ha/hr. In power tiller method primary and secondary tillage operations were done by rotary tiller with field capacity of 0.11 and 0.16 ha/hr, respectively. ln indigenous method country plough pulled by a pair of bullocks was used for both primary and secondary tillage operations with field capacities of 0.02 ha/hr and 0.025 ha/hr, respectively. Continuous seeding was done in line at 20 cm spacing in mid-November. The variety of wheat was Kanchan. Uniform dose of fertilizers 80 kg N, 60 kg P₂O₅and 40 kg K₂O per hectare were applied in the form of urea, triple super-phosphate and muriate of potash. All fertilizers were applied as basal but 50% urea was top dressed at 45 DAS (days after sowing). One irrigation was applied before top dressing. The crop received precipitation of 73.1 mm at 62 DAS in 1990 and 113.5 mm at 74 DAS in 1990 and 1991, respectively. Ploughing and agronomic data were collected as and when necessary. Costs were calculated as per RNAM Test Code.

Source of Information: J.Agril. Mach. & Mech. 3(1&2),1996:111-i15 ISSN 1024-6290

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The effect of tillage method and the number of passes on the yield and yield attributes of wheat are found insignificant. Cost of land preparation by country plough is less than that of tractor and power tiller. Considering timeliness, speed of work and BCR values 2 ploughings by tractor and 4 ploughings by power tiller are good for wheat cultivation under irrigated condition.

Knowledge Management: Journal