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Efficiency of Wheat-lentil and Wheat-chickpea Intercropping Systems at Different Planting Configurations

A. K. Das
Department of Agricultural Extension, Khamarbari, Farmgate, Dhaka-1215

Q. A. Khaliq
Professor
Bangabandhu Sheikh Mujibur Rahman Agricultural University, Salna, Gazipur-1706

M. L. Haider
Department of Agricultural Extension, Khamarbari, Farmgate, Dhaka-1215

Abstract/ Executive Summary:

This intercropping experiment was planned under the concept of cereal-legume intercropping system to find out the efficiency of wheat-lentil and wheat-chickpea intercropping systems at different planting configurations. During the experiment the data on yield parameters of the component crops were recorded under sole cropping and intercropped conditions. Finally intercropping efficiencies were calculated out from the recorded data. Grain yield in wheat, lentil and chickpea were higher in sole crops. But corresponding equivalent yields were higher than those in sole crops. Intercropping efficiencies varied significantly with the variation in crop combination and planting configurations. The intercropping efficiency LER, SLER, AYL and IA were recorded the highest 1.46, 1.69, 0.81 and 2.41, respectively in wheat-chickpea intercropping at 2:2 row ratios. Wheat was appeared as more competitive than lentil and chickpea, irrespective of the planting configurations. In the sole cropping system the BCR was the highest (2.26) for lentil. Under intercropping system the highest BCR (2.07) was recorded in wheat- lentil intercropping at 1:1 row ratio.

Keywords: Efficiency, Wheat,Lentil, Chickpea, Intercropping, Planting configurations

Location: The experimental field of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Salna, Gazipur

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Wheat

Objectives:

To find out the planting configurations effect on the growth and yield of component crops under wheat-lentil and wheat-chickpea intercropping system.

Methodology:

The experiment was conducted in the experimental field of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Salna, Gazipur, Bangladesh. The treatment combinations were T1 = sole wheat, T2 = sole lentil, T3 = sole chickpea, T4 = wheat - lentil 1:1 row ratio, T5 = wheat - chickpea 1:1 row ratio, T6 = wheat - lentil 2:2 row ratio, T7 = wheat - chickpea 2:2 row ratio, T8 = wheat - chickpea 3:1 row ratio, T9 = wheat - chickpea 3:1 row ratio. The experimental materials were BARI wheat variety, Saurav, BARI Chola-5 and BARI lentil- 1. Yield of crop was calculated from 4m2 demarcated areas from the experimental plots. The plot size was 5.0m x 4.0m and the experiment was laid out in RCBD design with 4 replications. Intercropping efficiencies and economic evaluation were done using different formula proposed by different researchers. A concept of the land equivalent ratio (LER) as an index of combined yield for evaluating the effectiveness of all forms of intercropping. Land equivalent ratio (LER) is defined as the total land area required under sole cropping giving the yield obtained in the intercropping mixture. Aggressivity, Competitive ratio, Actual yield loss, Intercropping advantage, Economic evaluation of intercropping system, Equivalent yield, Gross returns, Net return, Variable costs were calculated by using the formulae. Variable costs: Expenditure incurred on different items: Labor cost, seed cost, fertilizer cost, pesticide cost and power tiller cost. The momentary cost of different treatments was computed on the basis of prevailing price. Benefit cost ratio: BCR was calculated by the following fomulae as follows; Benefit cost ratio (BCR) = Gross Return/ Net Return.

Source of Information: Int. J. Sustain. Crop Prod. 7(1):25-33, 2012

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Intercropping efficiencies varies significantly with the variation in crop combination and planting configurations. The experiment revealed that land equivalent ratio (LER). Staple land equivalent ratio (SLER), actual yield loss (AYL) and intercropping advantage (IA) were recorded higher in the wheat-chickpea intercropping at 2:2 row ratio indicating efficient intercropping efficiencies.

Knowledge Management: Journal