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Effect of Intercropping Maize with Chickpea as the Main Crop

M. A. Khaleque
Regional Agricultural Research Station, Jamalpur.

A. M. A. Kamal
Regional Agricultural Research Station, Jamalpur.

S. M. Zaman
Regional Agricultural Research Station, Jamalpur.

Abstract/ Executive Summary:

Effect of intercropping maize with chickpea as the main crop was studied in a field experiment at Bangladesh Agricultural University, Mymensingh, during November 1986 to April 1987 for yield and economic advantages with seven treatments, namely, 100% chickpea + 10%, 20%, 30%, 40% and 50% maize, chickpea sole and maize sole. Highest chickpea grain yields were obtained from chickpea sole (1.43 t/ha) and 100% chickpea+ 10% maize (1.42 t/ha). Maize grain yield was highest (3.23 t/ha) from maize sole treatment. The highest LER (1.10), gross return (Tk.24050 /ha), net return (Tk. 17176/ha) and benefit cost ratio (3.49) was obtained from 100% chickpea +10% maize intercrop combination.

Keywords: Intercropping, Maize, Chickpea

Location: Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh.

Start Date: 00-11-1985

End Date: 00-04-1987

Program Area: Farming System

Commodity: Maize, Chickpea

Objectives:

To find out an appropriate plant population ratio.

Methodology:

An experiment was conducted on sanday loam soil on a piece of a medium high land of Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during the period from November 1986 to April 1987. The treatments included sole crops of chickpea and maize and 5 intercrop mixtures of chickpea and maize, namely, 100% chickpea+10% maize, 100% chickpea+20% maize, 100% chickpea+30% maize, 100% chickpea+40% maize and 100% chickpea +50% maize. The experiment was laid out in a randomized complete block design with four replications. The seeds of cultivar pop corn of maize and Sabur-4 of chickpea were used. Fertilizers were applied during final land preparation at the rate of 40-30-40 kg/ha of N, P₂0₅ and K₂0 through urea, triple superphosphate and muriate of potash, respectively. In intercropping plots, there were ten rows of chickpea at 40 ern row to row spacing and 8 cm plant to plant spacing. Maize seeds were, sown in rows within every alternate two rows of chickpea. Thus, intercropped maize rows were 80 cm apart, with a plant to plant distance of 200 cm for 10%, 100 cm for 20%, 67 cm for 30%, 50 cm for 40% and 40 cm for 50% of sale maize population which was planted at 80 ern x 20 cm spacing. Chickpea sale crop was planted at 40 cm x 8 cm spacing. Seeds were sown on 27 November 1986. Maize seeds were sown by using 2 seeds/hill which was later on thinned to one plant/hill after 30 days of sowing. All plots were weeded once at 38 days after sowing and only sale maize plots were weeded again at 60 days after sowing when earthing up of sale maize rows was done. Harvesting of chickpea was done on 26 March 1987 and of maize on 10 April 1987. For collecting data on yield contributing characters, 10 randomly selected plants of each crop from each plot were used. Yield data were recorded after drying the seeds and straw throughly in the sun. Land equivalent ratio (LER) was used for comparison among the treatments. LER values were computed from grain yield data of the crops according to the following formula:

LER =(Yield of chickpea intercrop/yield of chickpea sole crop) + (yield of maize intercrop/yield of maize sole crop)

i.e. LER = Relative yield of chickpea intercrop + relative yield of maize intercrop. The total labour hours used for different operations were recorded along with cost of variable inputs to compute the variable cost of different combinations. The cost and return analysis was done for each treatment on hectare basis.

Source of Information: Progressive Agriculture, Vo-1 (1), 77-81, 1990

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The result of the present experiment suggested that 10% maize should be intercropped with 100% chickpea for economic advantage of the farmers.

Knowledge Management: Journal