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Intercropping Chilli with Sweet Gourd at Varying Plant Population

M. S. Alom
PSO
Agronomy Division, Gazipur

A.H.M.M. Rahman
SO
Agronomy Division, Gazipur

Abstract/ Executive Summary:

The experiment was conducted at the research field of Agronomy Division, Joydebpur, Gazipur and Regional Agricultural Research Station, Jamalpur during the period from November 2011 to June 2012 to find out the appropriate plant population of chili in sweet gourd-chili intercropping systems Treatments included in the experiment were: T1= Sole sweet gourd (2.0 m x 2.0m), T2=Sole chili (50 cm x 40 cm), T3= Sweet gourd (100%) + chili (100%), T4= Sweet gourd (100%) + chili (60%), T5= Sweet gourd (100%) +chili (50%) and T6= Sweet gourd (100%) + Chili (40%). Fruit yield of sweet gourd was reduced significantly when intercropping with more than 50% chili. Sweet gourd (100%) + chili (40%) combination gave the highest sweet gourd equivalent yield (43.02 t/ha) at Joydebpur and 19.20 t/ha at Jamalpur), gross return (Tk. 430200/ha at Joydebpur and Tk. 192000/ha at Jamalpur), gross margin (Tk. 341146/ha at Joydebpur and Tk.136046/ha at Jamalpur) and benefit cost ratio (4.83 at Joydebpur and 3.43 at Jamalpur). The maximum LER (1.64 at Joydebpur and 1.60 at Jamalpur) was obtained from sweet gourd (100%) + chili (40%) intercropping system. The results revealed that 40% might be the optimum chili population for intercropping with sweet gourd for higher productivity and economic return.

Keywords: Intercropping, Chilli, Sweetgourd, Plat population

Location: Joydebpur, Gazipur

Start Date: 00-11-2011

End Date: 00-06-2012

Program Area: Farming System

Commodity: Chilli, Sweet potato

Objectives:

To find out the optimum plant population of chilli for intercropping with sweet gourd for higher productivity and return.

Methodology:

A field experiment was conducted at the research field of Agronomy Division, BARI, Joydebpur, Gazipur and Regional Agricultural Research Station Jamalpur during the period from November 2011 to June, 2012. The experiment was laid out in randomized complete block design with there replications. The unit plot size was 4.0 m x 4.0 m. Treatments included in the experiment were: T1= Sole sweet gourd (2.0 m x 2.0m), T2=Sole chili (50 cm x 40 cm), T3= Sweet gourd (100%) + chili (100%), T4= Sweet gourd (100%) + chili (60%), T5= Sweet gourd (100%) +chili (50%) and T6= Sweet gourd (100%) + chili (40%). Fertilizer was applied at the rate of 120-80-120-20-4 kg /ha NPKSZn for sole chili through urea, triple super phosphate, muriate of potash, gypsum and zinc sulphate, respectively. In sole sweet gourd and intercrop fertilizers were applied at the rate of 80-36-100-24-2-2 kg/ha NPKSZnB through urea, triple super phosphate, muriate of potash, gypsum, zinc sulphate and boric acid, respectively along with cowdung @ 10 t/ha. Fifty per cent of nitrogen and all other fertilizers for sole chili were applied at the time of final land preparation and rest amount of nitrogen was applied at 25, 50 and 70 days after planting (DAP). On the other hand, full amount of all fertilizers except nitrogen were applied in pit 7 days prior to seed sowing for sole sweet gourd and intercrop. In sweet gourd plant nitrogen was applied as ring method at 30 and 50 days after planting followed by irrigation, One seedling of sweet gourd was planted in each pit and one month old seedling of chili were planted in the field at the same day on November 23, 2011. At Jamalpur, fifteen day old seedling, of sweet gourd (var: BARI Misti kumra 2) and one month age seedling of chilli (var: Jamalpur local) were planted in the field at the same day on 15 November, 2011. The variety of sweet gourd was BARI Misti kumra 2 and Manikgonj local variety of chili was used in the experiment at Joydebpur. Intercultural operations like watering, weeding and spraying of insecticides and fungicides were done when required. Fruit yield was calculated for sweet gourd and chili in ton per hectare considering the whole plot as harvest area. Five plants of chilli from each plot were selected randomly to collect data on yield components. Collected data were analyzed statistically with the help of MSTATC programme and mean separation was done as per LSD test at 5% level of significance. Benefit cost analysis was performed considering the prevailing price of sweet gourd and green chilli at the harvesting period in the local market (Reddy and Reddi, 1992). Sweet gourd equivalent yield (SGEY) was also calculated .Land equivalent ratio (LER) was calculated.

Source of Information: Annual Report, Agronomy Division 2011-12, BARI

Article Link (Online Journal):

Funding Source:

1. Asian Development Bank

Budget: 20,000/-

Total Budget (Tk.) : 20,000/-

Achievement/Findings:

Fruit yield of sweet gourd was reduced significantly when intercrop combination was with more than 50% chilli. Sweet gourd (100%) + chilli (40%) combination gave the highest sweet gourd equivalent yield (43.02 t/ha) at Joydebpur and 19.20 t/ha at Jamalpur), gross return (Tk. 430200/ha at Joydebpur and Tk. 192000/ha at Jamalpur), gross margin (Tk. 341146/ha at Joydebpur and Tk.136046/ha at Jamalpur) and benefit cost ratio (4.83 at Joydebpur and 3.43 at Jamalpur). The maximum LER (1.64 at Joydebpur and 1.60 at Jamalpur) was obtained from sweet gourd (100%) + chilli (40%) intercropping system. The results revealed that 40% might be the optimum chilli population for intercropping with sweet gourd for higher productivity and economic return.

Knowledge Management: Report/Proceedings