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Study on Energy Input, Output and Energy Use Efficiency of Major Jute Based Cropping Pattern

M. A. Khan
Jute Research Regional Station, Bangladesh Jute Research Institute, Rangpur

S. M. A. Hossain
Department of Agronomy, BAU, Mymensingh, Bangladesh.

Abstract/ Executive Summary:

An investigation was undertaken in Jute Research Regional Station, BJRI, Kishoreganj during the period of 2000 - 2001 to 2002 - 2003 to evaluate the energy input, energy output and output-input ratio of some selected jute based cropping pattern. the result showed that the highest energy input (42,928 MJ ha^-1 ) was noted for Jute (oli.)- T. aman rice-Potato, which was closely followed by Jute (cap.)-T. aman rice-Potato cropping pattern (39.856 MJ ha^-1 ). The lowest energy input (19,947 MJ ha^-1 ) was found for Jute (cap.)-T. aman rice-Fallow pattern. The highest energy out-put from main product was recorded in Jute- T. aman rice-Potato cropping pattern while the lowest from Jute-Fallow-Wheat pattern. However, the highest total energy output was obtained from Jute-T. aman rice-Wheat (4,01,332-403851 MJ ha^-1 ) which was followed by Jute-T. aman rice-Potato (3,66,729-3,73,949 MJ ha^-1 ) and Jute-T. aman rice-Lentil (2,88,906-3,33,416 MJ ha^-1 ), although the energy output from main product of potato containing cropping pattern was the highest. The energy output from by-product was more compared to main product for all the cropping patterns. Between two jute based cropping patterns, olitorius jute containing pattern required higher energy input than that of capsular is but energy output was higher in capsularis jute containing pattern. Output-input ratio of cropping pattern was maximum (14.5) in 2-crop pattern where rabi crops were absent. It indicated that rabi crops had lower energy output compared to other kharif crops.

Keywords: Jute, Cropping Pattern, Efficiency, Energy

Location: Jute Research Regional Station, BJRI, Kishoreganj.

Start Date: 00-00-2000

End Date: 00-00-2003

Program Area: Farming System

Commodity: Jute

Objectives:

To evaluate the energy input, energy output and energy use efficiency of some selected jute based crop-ping pattern.

Methodology:

The study was conducted at Jute Research Regional Station, BJRI, Kishoreganj during 2000-2003. The soil of experimental plot was silt loam in texture, slightly acidic (pH 6.17), low in organic carbon (0.72 %), total nitrogen 0.072%) and exchangeable potassium (0.074 meq./100g), had optimal level of phosphorus (32.0 ppm) and available sulpher near about critical level (14.0 ppm). The study was consisted with ten jute based crop-ping patterns, i.e., i) Jute (cap.)-T. aman rice-Wheat, ii) Jute (oli.)-T. aman rice-Wheat, iii) Jute (cap.)-T. aman rice-Potato, iv) Jute (oil.)-T. aman rice-Potato, v) Jute (cap.)-T. aman rice-Lentil, vi) Jute (oli.)-T. aman rice-Lentil, vii) Jute (cap.)-T. aman rice-Fallow, viii) Jute (oli.)-T. aman rice-Fallow, ix) Jute (cap.)-Fallow-Wheat and x) Jute (oli.)-Fallow-Wheat. The treatments were replicated four times in randomized complete block design with a plot size of 4.0m x 5.0m. Sowing of rabi crops some what delayed in 1st year and 3rd year due to rain at late November. All crops were grown with recommended package of practices. Supplemental irrigation was applied in transplanted aman rice whenever it necessary. The wheat and potato crops were irrigated once at the vegetative stage. Total energy input and output of crops and cropping systems were estimated by using the energy equivalents as suggested by many worders. The energy input through land preparation, seed bed preparation, seed sowing, transplanting, fertilizer and pesticide application, intercultural operations. irrigation, harvesting, carrying, threshing and drying expressed as human labour, seed, fertilizer, pesticide and fuel use for irrigation and land preparation were calculated. The energy input from non-commercial sources was ignored because this energy was coming from natural sources. The energy output was calculated by accumulating the main product and by-product produced from different cropping systems. Subtracting input energy from output energy derived the net return of energy. The output-input ratio was worked out by dividing the total energy generated from main product and by-product by the total energy used for raising the crop in the unit area.

Source of Information: Bangladesh J. Sci. Ind. Res. 42(2), 195-202, 2007

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Among the cropping patterns, the highest energy output-input ratio of 14.5 was obtained from Jute (cap.)-T. aman rice-Fallow followed by 14.0 of Jute (cap.)-T. amanrice-Lentil and the lowest of 8.5 in Jute (oli.)-T. aman rice-Potato cropping pattern (Table III). The result indicates that the energy output from rabi crops was not remunerative compared to the other component crops of the pattern. The higher energy output-input ratio in lentil involving jute based crop-ping pattern was appeared due to lower energy input required for lentil compared to other rabi crops. (Parihar et al., 1999) also observed the higher energy output-input ratio in pulse involving rice-based cropping pat-tern. Potato involving cropping pattern showed lower output-input energy compared to wheat and lentil involving pattern although the total yield of potato involving pattern was very high. It was due to maximum energy input required for potato crops. However, capsularis jute containing pattern always incurred higher output-input ratio than that of olitorius jute. Energy output and output-input ratio of different cropping patterns (mean

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