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Winter Vegetables Cultivation in Charland Based Farming System Under Akashmoni Tree

M.I. Hosssain
Department of Agroforestry, Bangladesh Agricultural University, Mymensingh-2202

A. Akter
Department of Agroforestry, Bangladesh Agricultural University, Mymensingh-2202

M.A. Wadud
Department of Agroforestry, Bangladesh Agricultural University, Mymensingh-2202

G.M.M. Rahman
Department of Agroforestry, Bangladesh Agricultural University, Mymensingh-2202

Abstract/ Executive Summary:

The experiment was carried out in Char Kalibari of Old Brahmaputra River adjacent to Bangladesh Agricultural University, Mymensingh during the period from October 2013 to March 2014 to observe the performance of four different winter vegetables in association with four years old Akashmoni tree for ‘Char’ based farming system. Winter vegetables were planted in association with Akashmoni tree following two factorial Randomized Complete Block Design (RCBD) with 4 (four) replications. Factor A: tree species were Akashmoni (Acacia auriculiformis ). Factor B: four winter vegetables and these were sweet potato (Ipomoea batatus), radish (Raphanus sativus), carrot (Daucus carota) and coriander (Coriandrum sativum). Yield and yield attributes of all tested winter vegetables was maximum in open field condition. All morphological parameters of sweet potato, radish, carrot and coriander was slightly increased in open field condition as compared to combined condition. Almost all tested vegetable species were slightly taller (2-15%) in open field condition. Number of leaves per plant, leaf size and individual plant/root weight was partially increased (10-20%) without Akashmoni tree association or open field condition. The morphological performance of akashmoni significantly influenced by the interaction of four winter vegetables such as sweet potato (Ipomoea batatus), radish (Raphanus sativus), carrot (Daucus carota) and coriander (Coriandrum sativum). Yield of sweet potato, radish, carrot and coriander were 9.03, 8.08, 8.99 and 4.59% lower along with Akashmoni combination as compared to open field condition

Keywords: Akashmoni tree (Acacia auriculiformis), Winter vegetables, Agroforestry, Charland

Location: Char Kalibari of Old Brahmaputra River adjacent to Bangladesh Agricultural University, Mymensingh

Start Date: 00-10-2013

End Date: 00-03-2014

Program Area: Farming System

Commodity: Akash moni, Coriander, Radish, Potato, Carrot

Objectives:

1. To examine the competitive effect of winter vegetables (sweet potato, radish, coriander and carrot) grown in association with akashmoni tree at the Char Kalibari in the bank of Old Brahmaputra River.

Methodology:

Planting material: In this study the four years old previously established akashmoni (Acacia auriculiformis) trees were used as tree components and four winter vegetables like sweet potato (Ipomoea batatus), radish (Raphanus sativus), carrot (Daucus carota) and coriander (Coriandrum sativum) were used as plant materials. The seeds of sweet potato and coriander variety viz. local were purchased from seed center, seeds of Carrot variety viz., laltir were collected from International Seed Fair in BAU campus Mymensingh, the seeds of Radish variety BARI Mula-2, were collected from International Seed Fair in Bangladesh Agricultural University campus, Mymensingh. Crop Establishment: Seeds of three vegetables of radish, carrot and coriander were directly sown in the experimental plot. Sweet potato was line sown. Carrot, radish and coriander were sown after land preparation in a broadcast method during 20th October 2013. All necessary cultural operations were done when it was required. After germination all necessary cultural operations like thinning, gap filling, weeding, fertilizing, irrigation, pest control etc. were done properly. Individual plot size for all vegetable was same and it was 12' × 24'. Experimental design, layout and tree sapling transplantation: Winter vegetables were planted in association with akashmoni trees following two factorial Randomized Complete Block Design (RCBD) with 4 (four) replications. Factor A: Akashmoni tree species and Factor B: Four different winter vegetable species. Tree species were planted maintaining a strip method with 12' × 12' spacing during April 2011 in the study site. Necessary silvicultural management activities like watering, cleaning, weeding, fertilizing, branch cutting, bamboo stick setting were done in time for proper growth and development of all tree saplings. Growth measurement of tree species: Growth of all planted tree sapling were recorded as height and girth during before and after winter season i.e. first time in the month of October 2013 and second time in the month of March 2014. Girth was measured using the formula: G = 2π r, where, r = radius. Difference between the recorded data during before and after the winter season treated as increment during winter season for both height and girth. Girth of all trees was measured 8 inch above the ground level. Sampling and Data collection: Data were collected randomly from all treatments of four vegetables at initial and mature stage. In case of sweet potato plant height (cm), no. of leaves plant^-1, leaf size (cm) root length (cm), root diameter (cm), weight root^-1 (g) and yield (t/ha) were recorded at harvesting stage. For radish and carrot plant length (cm), no. of leaves plant^-1, root length (cm), weight of root plant^-1 and yield of radish and carrot (t/ha) was recorded at harvesting stage. For yield measurement, data were recorded from individual plots and it was converted as tha^-1. In case of Coriander plant height (cm), no. of leaves plant^-1, leaf length (cm), fresh weight of plant^-1 and yield of coriander (t/ha) was recorded. Statistical analysis: The recorded data were compiled and analyzed by RCBD design to find out the statistical significance of the experimental results. The means for all recorded data were calculated and the analyses of variance for all the characters were performed. The mean differences were evaluated by Duncan’s New Multiple Range Test (DMRT) at 5% level of significance and also by Least Significant Difference (LSD) test.

Source of Information: J. Agrofor. Environ. 8 (2): 35-38, 2014; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Yield and yield attributes of all tested winter vegetables was maximum in open field condition. All morphological parameters of sweet potato, radish, carrot and coriander was slightly increased in open field condition as compared to combined condition. Almost all tested vegetable species were slightly taller (2-15%) in open field condition. Number of leaves per plant, leaf size and individual plant/root weight was partially increased (10-20%) without Akashmoni tree association or open field condition. The morphological performance of akashmoni significantly influenced by the interaction of four winter vegetables such as sweet potato (Ipomoea batatus), radish (Raphanus sativus), carrot (Daucus carota) and coriander (Coriandrum sativum). Yield of sweet potato, radish, carrot and coriander were 9.03, 8.08, 8.99 and 4.59% lower along with Akashmoni combination as compared to open field condition

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