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Intercropping Bushbean with Potato Under Different Planting System

M.T. Rahman
SO
Agronomy Division, Gazipur

A R I Sarker
SSO
ARS, Burirhat, Rangpur

Abstract/ Executive Summary:

An intercropping experiment was conducted at the research field of Agronomy Division, Bangladesh Agricultural Research Institute, Joydebpur, Gazipur and Agricultural Research Station, Burirhat, Rangpur during rabi season of 2010-2011. The highest bushbean pod yield (4.16 t/ha at Joydebpur and 5.03 t/ha at Burirhat) was obtained from T₂ (potato normal planting with whole tuber + 2 rows bushbean) treatment. Maximum potato tuber yield (19.33 t/ha at Joydebpur and 23.93 t/ha at Burirhat) was recorded in sole cropping system. Yield of potato were reduced under intercrop situation. The highest potato equivalent yield (19.33 t/ha at Joydebpur and 23.93 t/ha at Burirhat), gross return (Tk 193300/ha at Joydebpur and Tk 167510/ha at Burirhat) and net return (Tk 102800/ha at Joydebpur and Tk 74760/ha at Burirhat) were found in potato sole cropping system. Among intercropping treatments, the higher potato equivalent yield, gross return and net return was recorded in T₂ treatment followed by T₃ treatment which was lower than sole cropping system. The results indicated that T₂ (potato normal planting treatment with whole tuber + 2 rows bushbean) might be profitable under adverse weather condition.

Keywords: Intercropping, Bushbean, Potato, Planting System

Location: Joydebpur, Gazipur and Burirhat, Rangpur

Start Date: 15-11-2010

End Date: 20-02-2011

Program Area: Farming System

Commodity: Bush bean, Potato

Objectives:

To find out the suitable planting system of potato + bushbean intercropping for higher productivity.

Methodology:

The experiment was conducted at the Agronomy Research field of Bangladesh Agricultural Research Institute, Joydebpur, Gazipur and Agricultural Research Station, Burirhat, Rangpur during rabi season of 2010-2011. Irrespective of seed size, 25 cm plant to plant distance was maintained for standard potato planting system. In double row system, 15 cm plant to plant distance was maintained. Potato in all the treatments were grown with 135-30-135-15-4-0.5 kg/ha NPKSZnB in the form of urea, triple super phosphate, muriate of potash, gypsum, zinc sulphate and boric acid, respectively. In sole potato and intercropping systems, the full amount of PKSZnB and 1/2 N were applied as basal. The remaining N was top dressed at 30 days after sowing (DAS). A light irrigation was given after sowing for proper emergence. Intercultural operations were done as and when required. Yield components of potato and bushbean were taken from randomly selected 5 plants from each plot. Yields of both the crops were taken from whole plot. Equivalent yields were computed. Data on yield and yield components of both the crops were analyzed statistically and the means were adjudged using LSD test. Cost benefit analysis was also done.

Source of Information: Annual Research Report, Agronomy Division 2010-2011, BARI

Article Link (Online Journal):

Funding Source:

1. Asian Development Bank

Budget: 30,000/-

Total Budget (Tk.) : 30,000/-

Achievement/Findings:

The results indicated that T₂ (potato normal planting with whole tuber + 2 rows bushbean) treatment might be profitable under adverse weather condition.

Knowledge Management: Report/Proceedings