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Performance of Seven Winter Vegetables Along with Four Years Old Akashmoni Tree in Charland Based Agroforestry System

Z. Alam
Department of Agroforestry, Bangladesh Agricultural University, Mymensingh-2202

K.N.A. Jewel
Natural Resource Management Division (Forestry Unit), BARC, Farmgate, Dhaka

M. Shahjahan
Natural Resource Management Division (Forestry Unit), BARC, Farmgate, Dhaka

Abstract/ Executive Summary:

The experiment was carried out in Char Kalibari of Old Brahmaputra River under the Department of Agroforestry, Bangladesh Agricultural University, Mymensingh during the period from October 2013 to March 2014 to observe the performance of seven different winter vegetables in association with four years old Akashmoni tree for 'Char' based fanning system. Winter vegetables were planted in association with Akashmoni tree following two factorial Randomized Complete Block Design with 4 (four) replications. Factor A: tree species were Akashmoni (Acacia auriculiformis ). Factor B: seven winter vegetables and these were sweet potato (Ipomoea batatus), potato (Solanum tuberosum), radish (Raphanus sativus), chilli (Capsicum annuum), carrot (Daucus carota), sweet gourd (Cucurbita moschata), and coriander (Coriandrum sativum). Yield and yield attributes of all tested winter vegetables was better in open field condition. Except plant height, all other morphological parameters of sweet potato, potato, radish, chilli, carrot, sweet gourd, and coriander was slightly increased in open field condition as compared to combined condition. Almost all tested vegetable species were slightly taller (4-8%) in association with Akashmoni trees but in sweet gourd tallest plant was observed without tree condition. Number of tuber/fruits/leaves per plant, tuber/fruit/root length and individual tuber/fruit/root weight was partially increased (10-20%) without Akashmoni tree association or open field condition. Height and girth increment of Akashmoni tree was little bit higher under combination of with vegetables condition (with potato, coriander and sweet gourd) and the lowest was found under the combination of chilli, sweet potato, carrot, radish. The morphological performance of akashmoni significantly influenced by the interaction of seven winter vegetables such as sweet potato (Ipomoea batatus), potato (Solanum tuberosum), radish (Raphanus sativus), chilli (Capsicum annuum), carrot (Daucus carota), sweet gourd (Cucurbita moschata), and coriander (Coriandmm sativum). Yield of sweet potato, potato, radish, chilli, carrot, sweet gourd, and coriander were 11.3, 16.2, 15.4, 17.8, 17.1, 52.1 and 18.0% lower along with Akashmoni combination as compared to open field condition.

Keywords: Akashmonitree, Winter vegetables, Yield, Agroforestry, Charland.

Location: Char Kalibari of Old Brahmaputra River, Department of Agroforestry, Bangladesh Agricultural University, Mymensingh

Start Date: 00-10-2013

End Date: 00-03-2014

Program Area: Farming System

Non-commodity: Performance

Objectives:

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

Methodology:

The geographical position of char kalibai located between 24° 45' - 24°45'40" North and 90°24'4" - 90'24'44" East Latitude. The physiographic unit of the soil of this char is old Brahmaputra flood plain. Every year after the monsoon huge area along the bank of the river old Brahmaputra developed as char which is rich due to silt deposition. The climatic condition of this char is sub-tropical and scanty rainfall associated with moderately low temperature during the Rabi season (October to March). Char Kalibari is an attached charland which have three distinct elevations. The upper elevation is relatively stable char, while the middle and lower elevation remained inundated during the rainy season from June to September each year. During summer season only stable portion of this char is suitable for vegetables cultivation. Winter vegetables were planted in association with akashmoni trees following two factorial Randomized Complete Block Design with 4 (four) replications. Factor A: Akashmoni tree species and Factor B: Seven different winter vegetable species. Tree species were planted maintaining a strip method with 12' x 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. 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 analyzes of variance for all the characters were performed. The mean differences were evaluated by Duncan's New Multiple Range Test at 5% level of significance and also by Least Significant Difference test.

Source of Information: Journal of Agroforestry and Environment, Vol: 8, (No-1), pp: 51-54, June-2014

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It was found from this study competition for growth resources was minimum where tree was absent which indicates root of four years old Akashmoni spread after far from tree base beyond the crop root system as a result after distance from tree base competition between the tree-crop was absent or minimum in this area.

Knowledge Management: Journal