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Intercropping of Root Crops with Chilli in Charlands of Mymensingh

SA Begum
Senior Scientific Officer
OFRD, BARI, Gazipur, Bangladesh

MS Zaman
Principal Scientific Officer
OFRD, BARI, Gazipur, Bangladesh

ASMMR Khan
Chief Scientific Officer
OFRD, BARI, Gazipur, Bangladesh

Abstract/ Executive Summary:

Adoption of intercropping may increases crop production instead of declining trend of agricultural land in Bangladesh. Thus, a field experiment on intercropping of root crops with chilli was executed at char area of Dori Bhabkhali in Mymensingh district during October 2014 to March 2015 to find out an appropriate intercrop for cultivation with chilli for higher productivity and maximum economic return. The experiment was consisted with five crop combinations viz., sole chilli, chilli + radish, chilli+ carrot, chilli + onion and chilli + garlic. Significantly the highest yield (green chilli) was obtained with sole chilli (10.26 t ha^-1). Among the intercropping treatments, the highest chilli yield (10.31 tha^-1) was obtained from chilli + garlic which were close to chilli + onion whereas the lowest (7.71 tha^-1) was found in chilli + radish combination. Intercropping reduced 3 to 48 % chilli yield but total productivity as expressed by chilli equivalent yield increased by 80-135% over sole chilli due to the contribution of companion crops. The highest chilli equivalent yield (25.01 t ha^-1), gross return (1250500 Tk ha^-1), gross margin (1133500 Tk ha^-1) and marginal benefit cost ratio (8.56) were obtained from chilli + garlic combination. Considering the experimental findings, chilli + garlic might be suitable combination for higher productivity and economic return.

Keywords: Intercropping; Root crops; Chilli; Charlands

Location: Farmers’ field of Dori Bhabkhali, Mymensingh

Start Date: 00-10-2014

End Date: 00-03-2015

Program Area: Farming System

Commodity: Onion, Garlic, Carrot, Radish, Chilli

Objectives:

To evaluate the performance of the intercropping system among the farmers and to find out a suitable root crop among radish, carrot, garlic and onion for using as intercrop with chilli for higher productivity and economic return.

Methodology:

The experiment was conducted at the farmers’ field of Dori Bhabkhali, Mymensingh during October 2014 to March 2015. The experimental soil was a sandy Brahmaputra alluvial soil belongs to AEZ 7 (Active Brahmaputra-Jamuna Floodplain). Five intercropping combinations such as sole chilli, chilli + radish, chilli + carrot, chilli + onion and chilli + garlic were investigated. The experiment was laid out in Randomized Complete Block Design with six dispersed replications. The unit plot size was 4m x 2m and spacing for chilli was 40 cm x 40 cm. Fertilizers were applied in each plot at the rate of 97-66-100-1 kg ha^-1 NPKS, respectively in the form of urea, triple super phosphate (TSP), muriate of potash (MOP), gypsum and boric acid as per recommendation of Mondal et al. (2014). Cowdung @ 10 t/ha was applied as a blanket dose during final land preparation. The full amount of cow dung, TSP, gypsum, boric acid and one third MOP were applied as basal at final land preparation. The rest amount of MOP and full dose of urea were applied in three equal splits at 25, 50 and 70 days after planting (DAP). Thirty days old seedlings of chilli (var. BARI morich 1) and onion (var. BARI Peaj1) were planted in the field on 13 November, 2014. Seeds of radish (var. BARI Mula 4), carrot (var. New kuroda) and cloves of garlic (var. BARI rasun 1) were sown on the same day. One row of radish, carrot, onion and garlic was planted/ sown in between two rows of chilli. Weeding, irrigation and crop protection measures were taken as and when necessary. Radish and carrot was harvested at 55 and 90 days after sowing (DAS) while onion and garlic was harvested at 119 DAS, respectively. First harvest of green chilli was done at 109 days after planting (DAP) and continued up to 138 DAP. Yield was calculated for green chili and intercrops in ton per hectare considering the whole plot as harvest area. Five plants of chili from each plot were selected randomly to collect data on yield components. Collected data were analyzed statistically with the help of MSTATC programme (Gomez and Gomez, 1984) and mean separation was done as per Least Significant Difference (LSD) test at 5% level of significance. Benefit cost analysis was performed considering the prevailing price of green chili, radish, carrot, onion and garlic at the harvesting period in the local market. Chilli equivalent yield (CEY) was also calculated following the formula of Prasad and Srivastava (1991).

Source of Information: Progressive Agriculture 26: 109-114, 2015, ISSN: 1017-8139

Article Link (Online Journal): http://www.banglajol.info/index.php/PA/article/view/25964

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Considering the experimental findings, it may be concluded that cultivation of garlic with chilli was found to be the best option for higher productivity and maximum economic return of the selected area. Intercropping increased total crop productivity as well as crop diversity. It is also found more profitable than the sole cropping and risk of cultivation of one crop can be reduced by intercropping.

Knowledge Management: Journal