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Intercropping of Yard Long Bean with Chilli

Parimal Chandra Sarker
Scientific Officer
OFRD, BARI, Hathazari, Chittagong

Abstract/ Executive Summary:

The experiment was conducted at farmers’ field in Hathazari of Chittagong district during December 2001 to May 2002 and December 2002 to May 2003 to identify adequate plant population of Yard long bean and to determine the proper sowing time of Yard long bean with Chilli in Yard long bean and Chilli intercropping systems. Three plant populations of Yard long bean viz., 10 , 20 & 30 %, and four sowing times of Yard long bean (YLB) viz., at the time of Chilli planting, 30 days after Chilli planting, 60 days after Chilli planting & 90 days after Chilli planting were studied. Twenty percent of yard long bean plant population at the time of Chilli planting showed the highest chilli equivalent yield (1.92 t/ha) and benefit-cost ratio (4.00).

Keywords: Yard long bean, Chilli, Intercropping

Location: Hathazari, Chittagong

Start Date: 15-12-2001

End Date: 15-05-2003

Program Area: Farming System

Commodity: Yard long bean, Chilli

Objectives:

To know the proper sowing time, adequate plant population and also cost and return analysis of chilli and Yard long bean intercropping systems.

Methodology:

The experiment was conducted at farmers’ field in Hathazari of Chittagong district during December 2001 to May 2002 and December 2002 to May 2003. The land was medium high land having sandy loam in nature. The experiment was laid out in a randomised complete block design with four dispersed replications. The treatment combinations were as follows: T1= Sole Chilli T2=Chilli + 10% YLB at the time of Chilli planting (CP) T3= Chilli + 20% YLB at the time of CP T4= Chilli + 30% YLB at the time of CP T5= Chilli + 10% YLB at 30 days after Chilli planting (DACP) T6= Chilli + 20% YLB at 30 DACP T7= Chilli + 30% YLB at 30 DACP T8= Chilli + 10% YLB at 60 DACP T9= Chilli + 20% YLB at 60 DACP T10= Chilli + 30% YLB at 60 DACP T11= Chilli + 10% YLB at 90 DACP T12= Chilli + 20% YLB at 90 DACP T13= Chilli + 30% YLB at 90 DACP T14= Sole Yard long bean Chilli and yard long bean (fruit type short and whitish-green in colour) variety was Hathazari local. Unit plot size was 6 m x 3 m. Spacing of Chilli was 50 cm x 15 cm and spacing of sole yard long bean was 150 cm x 30 cm. Chilli was planted in the 2nd week of December in both the years and ripened chilli was harvested during 2nd week of April to last week of May. Yard long bean was sown according to treatments and was harvested during 3rd week of March to 3rd week of May by hand picking at 3 days interval. Gap filling of Chilli was done after 12 days of planting.

Source of Information: Annual Research Report, 2002-03 published by OFRD, BARI

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The higher number of Chilli per plant was found from treatment T1 where sole Chilli was grown in both the years but was statistically similar to treatments T11, T12 & T13 in 2001-2002. Due to higher competition with yard long bean, Chilli number per plant was lower at the time of Chilli planting but after that there was an increasing trend due to lesser competition with the late planting of yard long bean. At early planting time, there was an decreasing trend of chilli per plant with the increasing of yard long bean plant population. Similar trend was found in case of weight of Chilli per plant and yield of Chilli in both the years. Number and weight of yard long bean per plant decreased with the later planting , but increased with the higher plant population of yard long bean . When yard long bean was sown at 90 days after Chilli planting, the plants did not establish up to bearing of fruits. Yard long bean yield decreased with late planting but increased with the increase of yard long bean plant population. Highest chilli equivalent yield was recorded from chilli + 20% YLB. It was noted that 10 to 30% population of yard long bean showed higher CEY than sole Chilli. Other intercropped treatments failed to show higher CEY than sole chilli. Similar trend was followed in case of gross returns and benefit cost ratio.

Knowledge Management: Report/Proceedings