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Intercropping Coriander with Brinjal for Brinjal Fruit and Shoot Borer Insect Suppression

S.K. Paul
Scientific Officer
Agronomy Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur-1701, Bangladesh.

S. Mazumder
Student
Sher-e-Bangla Nagar Adorsha Mohila College, Dhaka-1207, Bangladesh.

S. Mondal
On-Farm Research Division, Regional Agricultural Research Station, Jessore, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur-1701, Bangladesh.

S.K. Roy
Section Officer
Department of Genetics and Plant Breeding, Sher-e-Bangla Agricultural University, Dhaka-1207, Bangladesh.

S. Kundu
Scientific Officer
Planning and Evaluation Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur-1701, Bangladesh.

Abstract/ Executive Summary:

A field experiment was conducted at the research field of Agronomy Division, BARI, Joydebpur, Gazipur during rabi season of 2014-15 to find out suitable intercrop combination of coriander with brinjal for insect suppression, maximize the land utilization for higher yield and economic benefit. There were six treatments in the experiment viz. T₁ =Sole brinjal (100cm X 75cm), T₂ =Sole coriander (broadcast), T₃ =100% brinjal+ 25% coriander (One row coriander between two row brinjal), T₄ =100% brinjal + 50% coriander (Two row coriander between two row brinjal), T₅ =100% brinjal + 75% coriander (Three row coriander between two row brinjal), T₆ =100% brinjal + 100% coriander (Broadcast). The maximum infestation of brinjal fruit and shoot borer was observed in sole brinjal (Fruit infestation 70.58%), (Shoot infestation 78.23%). The infestation was reduced with the increase of coriander population intercrop situation. The minimum infestation of was in treatment T₄ (Fruit infestation 33.33%), (Shoot infestation 28.26%). Brinjal yield and yield components were inversely related to brinjal fruit and shoot borer infestation.The highest brinjal yield (15.33 t ha^-1 ) was obtained from treatment T₄ while the lowest (3.00 tha^-1 ) from T₁ treatment. The highest brinjal equivalent yield (16.470 tha^-1), gross return (Tk. 2,47,050 ha^-1 ), gross margin (Tk. 1,35,050 ha^-1 ) and benefit cost ratio BCR (2.21) were obtained from treatment T₄ while the lowest from T₁ treatment.

Keywords: Coriander, Brinjal, Intercropping, Brinjal Fruit and Shoot Borer, Insect Suppression

Location: Agronomy Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur

Start Date: 00-00-2014

End Date: 00-00-2015

Program Area: Farming System

Commodity: Brinjal, Coriander

Objectives:

To find out a suitable intercrop combination of coriander with brinjal and
To maximize economic return through increasing the productivity of the crops through intercropping

Methodology:

The experiment was conducted at the research field of Agronomy Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur during rabi season of 2014- 2015. The soil belonged to the Chhiata Series under Agroecological Zone-28. The soil was clay loam and acidic in nature (pH 6.1). There were six treatments viz.T₁ =Sole brinjal (100cm X 75cm), T₂ =Sole coriander (broadcast), T₃ =100% brinjal+ 25% coriander (One row coriander between two row brinjal), T₄ =100% brinjal+ 50% coriander (Two row coriander between two row brinjal), T₅=100% brinjal+ 75% coriander (Three row coriander between two row brinjal), T₆ =100% brinjal+ 100% coriander (Broadcast). The experiment was laid out in Randomized Complete Block Design with three replications.The unit plot size was 4.5 m x 3 m. Seeds of BARl Begun-10 were sown on 11 October, 2014 and transplanted on 11 November, 2014. The seeds of BARI Dhonia-1 were sown on 11 November, 2014. Fertilizers @ 160-48-120-20-3-0.9 kg ha^-1NPKSZnB were applied at the time of final land preparation in the form of Urea, TSP, MoP, gypsum and boric acid respectively. Except N and K, full amount of other fertilizer was applied before 1 week of transplantation. N and K was applied in 3 equal splits at 21, 35 and 50 DAT as ring method followed by irrigation. Intercultural operations were done as and when required. Brinjal was harvested by hand picking on 25 February, 05 March, 15 March, 25 March,05 April, 15 April, 2015 and coriander was harvested on 23 March, 2015. Yield component data of coriander and brinjal were collected from 10 randomly selected plants prior to harvest from each plot. At harvest, the yield data was recorded plot wise. Collected data were analyzed statistically and means were adjudged by LSD Test at 5% level of significance using MSTAT-C package. Yield of individual crop was converted into brinjal equivalent yield (BEY) considering prevailing market price of the crops . Benefit cost analyses were also done.

Source of Information: World Journal of Agricultural Sciences 11 (5): 303-306, 2015, ISSN 1817-3047

Article Link (Online Journal): DOI: 10.5829/idosi.wjas.2015.11.5.1872

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The treatment T₄=100% brinjal+ 50% coriander (Two row coriander between two row brinjal), was found to be suitable for brinjal fruit and shoot borer insect suppression along with higher production and economic return.

Knowledge Management: Journal