Abstract:
The experiment was conducted at Central farm of Sher-e-Bangla Agricultural University,
Sher-e-Bangla Nagar, Dhaka, Bangladesh to screening of some leafy vegetables under
mahogany tree based agroforestry system. In this study the 25 years old previously
established mahogany tree were used as tree components. As leafy vegetable Kalmi, Red
Amaranth, Indian Spinach and Stem Amaranth were used. The experiment consists of two
factors: Factor A: Orientation of planting (2) - 0: East facing, 02: West facing; Factor B:
Distance of planting (5
levels)- Do: Planting leafy vegetables under Ml sunlight, Dj: Planting
leafy vegetables 3.5 m apart from mahogany trees, 1)2: Planting leafy vegetables 4.0 m apart
from mahogany trees, 1)3: Planting leafy vegetables
4.5 m apart from mahogany trees and
1)4:
Planting leafy vegetables 5.0 m apart from mahogany trees. The experiment was conducted with
Randomized Complete Block (RCI3D) with three replications The result revealed that, due to
orientation of planting, in case of Kalmi, Red Amaranth, Indian Spinach and Stem Amaranth,
the tallest plant,the highest yield and light intensity was recorded from 0, where light
intensity and soil moisture were maximum. Soil temperature was minimum. On the other
hand yield of four leafy vegetables were the lowest at west facing (02). Light intensity and
soil moisture were minimum. Soil temperature was maximum. The yield of four leafy
vegetables were the best from 4.5 m apart from Mahogany trees (03). On the other hand yield
of Kalmi, Red Amaranth, Indian Spinach and Stem Amaranth were the lowest from 3.5 m
apart from Mahogany trees (13
1). Light intensity was the highest at treatment combination of
02D0
and the lowest light intensity was observed at treatment combination oIO
2D2. The yield
per hectare (41.22, 44.82. 55.53 and 44.25 ton, respectively) of four leafy vegetables were
superior at east facing 4.5 m apart from Mahogany trees (0
1133
) where, soil moisture was the
highest. On an average the lowest yield per hectare (25.13, 26.56, 37.01 and 23.22 ton,
respectively) of four leafy vegetables were observed at west facing 3.5 m apart from
where the lowest soil moisture was observed and the soil
temperature was comparatively higher.
Description:
A Thesis
Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University,
Dhaka, in partial fulfillment
of the requirements
for the degree
of
MASTER OF SCIENCE
IN
AGROFORESTRY & ENVIRONMENTAL SCIENCE
