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EFFECT OF DIFFERENT GROWING MEDIA ON BASIL VARIETIES IN SIMULATED INDOOR VERTICAL FARM
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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
HORTICULTUREThe present experiment was conducted in the indoor farm of Dr. M. Wazed Mia Central Laboratory,
Sher-e-Bangla
Agricultural
University,
Dhaka
during
the
period
from
November
2020 to
April
2021 to
evaluate
the
effect
of
growing
media
on basil
varieties
in
simulated
indoor
vertical
farm.
The
experiment
consisted
of
two
factors;
Factor
A:
Growing
media
(3
levels)
as-
M
1
-
cocopeat
(20%)
+
vermicompost
(70%)
+
soil
(10%),
M
2
-
vermicompost
(90%)
+
soil
(10%),
M
3
-
biochar
(10%)
+
vermicompost
(80%)
+
soil
(10%)
and
Factor
B:
Variety
(2
levels)
as-
V
1
-
Italian
sweet
basil
and
V
2
-
Holy
basil.
The
two
factors
experiment
was
laid
out
in
Randomized
Complete
Block
Design
(RCBD)
with
three
replications.
Different
growing
media
and
varieties
significantly
influenced
on different
growth,
yield
parameter
and
nutrients
of
basil.
In
case
of
growing
media,
the
highest
plant
height
(39.08
cm),
the
number
of
leaves/plant
(86.67),
the
length
of
leaf
(9.37
cm),
leaf
breadth
(5.33
cm),
fresh
weight
(147.83
g)
and
dry
weight
(69.62
g),
oil
content
(1.23%)
were
found
from
M
1
and
those
were
minimum
in
M
3
.
Considering
the
varieties,
V
2
produced
the
highest
plant
(33.26
cm),
leaf
number
(68.11),
fresh
weight
(127.76
g)
and
dry
weight
(54.57
g).
Moreover,
the highest length of leaf (9.92 cm), leaf breadth (5.72 cm), essential oil
content (1.17%) were from V
1
. Regarding the combined effect, the highest plant height (43.60
cm), leaf number (100.33), fresh weight (159.49 g) and dry weight (74.78 g) were observed from
M
1
V
2
and the lowest plant height (16.27 cm), fresh weight (90.09 g) and dry weight (23.46 g)
were observed from M
3
V
1
. However, M
1
gave highest results in P (1.11%), K (1.93%), Na
(0.68%) and S (0.67%) and M
3
gave the lowest results. In variety, P (0.92%) and S (0.63%)
content were highest in V
1
, lowest in V
2
. Furthermore, K (1.62%) and Na (0.63%) content were
highest in V
2
, lowest in V
1
. In combination, the maximum P (1.3%), and S (0.71%) content in
basil were found in M
1
V
1
; minimum P in M
3
V
2
and S in M
3
V
2
. On the contrary, Maximum K
(2.2%) and Na (0.76%) were found in M
1
V
2
, minimum in M
3
V
1
. The results showed that the use
of vermicompost with cocopeat increased the growth, oil and nutrients in both basils
EVALUATIONS OF GROWTH AND NUTRITIONAL PROFILE OF MICROGREENS OF DIFFERENT CROPS UNDER VARIOUS LEDs LIGHT SPECTRUMS
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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 (MS)
IN
HORTICULTUREThis present study was conducted at an indoor structure on the 5
floor of
Dr. Wazed Mia Research Centre, Sher-e-Bangla Agricultural University,
Dhaka. During the period from November to December, 2020. The
experiment comprised of single factors that is viz., Five different
concentrations of LEDs light (White light L
1
II
: 100; Red light L
2
: 100; Blue
light L
3
: 100; Red: Blue light L
4
th
: 70:30 and Red: Green: Blue light L
5
:
70:10:20). Four different crops (C
1
: Mustard, C
2
: Lettuce, C
3
:
Broccoli) were used as microgreen crops. Results showed that the highest
hypocotyl length of C
1
, C
2
, C
3
and C
4
were (10.53cm, 8.47cm, 15.23cm and
11.43cm) from the treatment of L
4
C
1
, L
4
C
2,
L
4
C
3,
and L
4
C
4
whereas the
lowest (7.67 cm, 5.53 cm, 11.2 cm and 7.73 cm) were found from the control
treatment L
1
L
4
C
3,
and L
4
C
1
C
4
, L
1
C
2
L
1
C
3
and L
1
C
4
respectively. Treatment of L
4
registered the highest fresh weight of C
1
, C
2
, C
3
(0.1,
0.1, 0.1 and 0.1kg) and yield (0.115, 0.110, 0.135 and .125kg). The treatment
L
4
C
1
, L
4
C
2,
L
4
C
3,
and L
4
C
4
gave the highest SPAD value C
1
(16.9nm), C
3
(55.3nm) and C
4
(49.9nm), nitrogen (%) of C
1
(16.93%), C
3
(55.27%) and C
4
(93.93%), potassium (%) of C
1
(0.19%),
C
2
(0.19%), C
3
(0.22%), C
2
(0.22%) and C
4
(0.23%), C
3
: Radish, C
4
C
1
and C
4
, L
4
(38.2nm), C
2
(38.23%), C
2
(0.16%) and antioxidant capacity of C
1
(0.19%) and C
4
(0.18%). The highest and lowest
gross income was obtained from L
4
C
1
, L
4
C
2,
L
4
C
3,
and L
4
C
4
treatment and
L
1
C
1
, L
1
C
2
L
1
C
3
and L
1
C
4
treatment. The highest (4.1, 3.9, 4.9 and 4.5) and
lowest (2.6, 2.4, 2.7 and 2.6) benefit cost ratio was noted for L
4
L
4
C
3,
and L
4
C
4
treatment and L
5
C
1
, L
5
C
2
L
5
C
3
and L
5
C
4
treatment. So, Red
and Blue (70:30) light can be economically used
MORPHOLOGICAL STUDY AND ECONOMIC CONSIDERATION OF CAULIFLOWER CULTIVATION ON ROOFTOP GARDEN USING VARIOUS COMPOSTS
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Submitted to the Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka,
in partial fulfilment of the requirements
for the degree of
MASTER OF SCIENCE
IN
AGROFORESTRY AND ENVIRONMENTAL SCIENCEThe experiment was conducted at the sixth floor of housing no. 64, road no. 6/A,
Dhanmondi 13 during the period from November 2019 to July 2020. The
experiment was laid out in CRD having single factors with three replications.
The treatments of this experiment were T
= Control (recommended dose of
chemical fertilizers), T
1
0
= Vermicompost (10 t ha
-1
) + recommended dose of
chemical fertilizers, T
2
= Sawdust (15 t ha
-1
) + recommended dose of chemical
fertilizers and T
3
= Cowdung (20 t ha
-1
) + recommended dose of chemical
fertilizers. The seedlings of the vegetable (BARI Fulkopi-2) was collected from
Bangladesh Agricultural Research Institute, Joydebpur, Gazipur. From the
results the maximum pure curd weight per plant (551.60 g), yield per plot (3.95
kg) and yield per hectare (19.75 t) were observed from T
(vermicompost @ 10 t
ha
-1
1
+ recommended dose of chemical fertilizers) treatment. The benefit cost
ratio (BCR) was found to be the highest (3.33) in the treatment of T
(vermicompost @ 10 t ha
-1
+ recommended dose of chemical fertilizers). Thus it
was apparent that vermicompost treatment gave the highest yield per hectare
(19.75 t) than the other treatments (sawdust and cowdung) and the highest gross
return (Tk. 395000.00). The results clearly showed that rooftop is suitable for
vegetables production and yield at the rooftop garden
IMPACT OF COVID-19 ON LIVELIHOODS OF STREET VENDORS IN DHAKA CITY, BANGLADESH
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Submitted to the
Department of Development and Poverty Studies
Faculty of Agribusiness Management
Sher-e-Bangla Agricultural University, Dhaka
In partial fulfilment of the requirements
for the degree
of
MASTER OF SCIENCE (MS)
IN
DEVELOPMENT AND POVERTY STUDIESThe COVID-19 outbreak created the most significant challenge after World War II,
and Bangladesh is one of the top 33 countries that have been affected. Street vendors
in Dhaka city are an integral part of urban economies. Since the COVID-19
pandemic affected all areas, they also suffered from this situation. The study aims
to investigate the impact of COVID-19 on the livelihoods of street vendors. To attain
the objectives, primary data were collected from 122 respondents using simple
random sampling in three areas of Dhaka city with a pre-tested questionnaire in
March-April 2022. Descriptive statistics and the livelihood assessment index (LAI)
method were used to analyze the data. The results showed that COVID-19 had a
negative impact on the livelihoods of street vendors. The pandemic affected different
capitals of the sustainable livelihood framework (SLF) in different ways, with social
capital extended and financial and human capital compensating, while other capital
remained constant. Street vendors' household income decreased during the
pandemic, and though many were expected to migrate to the village, only a few did.
Street vendors managed to sustain their livelihoods through vending businesses,
taking loans from various sources, and spending their previous savings. To protect
this vulnerable group from future similar events, they need to be encouraged to save
more and strengthen their social capital. This study provides a clear understanding
of the adverse effects of COVID-19 on the livelihoods of street vendors in Dhaka
city. It highlights the need for effective policy measures to mitigate the impact in the
future
EFFECT OF DIFFERENT PLANT EXTRACT ON YIELD AND SEED QUALITY OF COUNTRY BEAN
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Submitted to the Institute of Seed Technology
Sher-e-Bangla Agricultural University, Dhaka
In partial fulfillment of the requirements
for the degree of
MASTER OF SCIENCE (MS)
IN
SEED TECHNOLOGYThe experiment was conducted at the farm of Sher-eBangla Agricultural University,
Dhaka during the period from November 2019 to April 2020 to study the effect of
different plant extract on yield and seed quality of country bean. The experiment
consisted of 7 treatments such as T
1
(Neem seed extract), T
2
(Neem oil), T
3
(Mehogoni
seed extract), T
4
(Black pepper extract), T
5
(Garlic extract), T
6
(Tobacco extract) and
Untreated control. The experiment was laid out in Randomized Complete Block Design
with three replications. Results revealed that at early, mid and late pod development
stage, the minimum incidence of number of bean pod borer larva plant
(5.97, 7.89 and
8.54, respectively) and number of aphid plant
-1
(2.49, 2.23 and 4.27, respectively) was
recorded in the T
2
(Neem oil) treated whereas untreated control treatment showed highest
incidence of bean pod borer larva and aphid plant
-1
. Considering pods plant
at early, mid
and late pod development stage, the highest number of healthy pods plant
(88.11, 138.90
and 72.77, respectively) and highest pod weight plant
-1
(483.33, 658.33 and 247.33 g,
respectively) were harvested from T
2
(Neem oil) treatment. In terms of % reduction of
infestation over control by number and weight, T
2
(Neem oil) treatise with the showed
best performance and this treatment also showed the highest number of inflorescence
plant
-1
(30.86), number of flower inflorescence
(10.57), pod length (11.19 cm), number of pods plant
(1470.67 g), pod yield (14.71 t ha
-1
-1
-1
-1
-1
(16.01), number of pods inflorescence
), seed yield plant
-1
(326.03 g), weight of pods plant
-1
(179.90 g) and seed yield ha
(1799.00 kg) followed by T
5
(Garlic extract) treated plot whereas untreated control
showed poorest results. The treatment T
2
(Neem oil) also produced the best quality seeds
and showed highest seed germination (92.67%), shoot length (8.01 cm), root length (4.17
cm) and seed vigor index (1129.00) of 12 days aged seedlings followed by T
5
(Garlic
extract) treated plot whereas untreated control treatment gave the poorest result. So, it
may be concluded that the treatment T
2
(Neem oil) can be considered as best against
aphid and bean pod borer infesting country bean and production of quality seeds
RESPONSE OF DIFFERENT GENOTYPES OF BORO RICE TO FOLIAR APPLICATION OF MICRONUTRIENTS UNDER SALINITY STRESS
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Submitted to the Department of Agronomy, Faculty of Agriculture,
Sher-e-Bangla Agricultural University, Dhaka in partial
fulfillment of the requirement for the degree of
MASTER OF SCIENCE (MS)
IN
AGRONOMYThe field experiment was conducted at net house of the department of agronomy, Sher-e-Bangla
Agricultural University during the period from November, 2019 to March, 2020 to evaluate the
effect of foliar application of micronutrients for increasing salinity tolerance in rice plants. The
experiment consisted of three factors. The factors were: factor A: Salinity level (2): S₁ = Control
(No saline water) and S₂ = 150 mM NaCl; factor B: Micronutrients (4): M₁ = Control (No
micronutrients), M₂ = Zinc (0.5%), M₃ = Boron (0.5%) and M₄ = Zinc (0.5%) + Boron (0.5%);
factor C: Variety (5): V₁ = BINA dhan10, V₂ = BINA dhan8, V₃ = BRRI dhan29, V₄ = BRRI
dhan47 and V₅ = BRRI dhan67. The experiment was laid out in a RCBD factorial design with
three (3) replications. Results showed that the salinity stress-imposed plants S₂ (150 mM NaCl)
were out-yielded by producing 58.23% lower grain yield than control plants S₁ (No saline
water). The treatment S₂ (150 mM NaCl) also showed the shortest plant at harvest (78.69 cm),
lowest tillers hill
−1
(6.27), shortest leaf at harvest (28.50 cm), narrowest leaf at harvest (1.45
cm), shortest panicle length (18.56 cm), lowest filled grains panicle⁻¹ (52.04), highest unfilled
grains panicle⁻¹ (17.07), maximum weight of 1000-grains (17.86 g), straw yield (21.69 g hill
),
biological yield (42.40 g hill
−1
) and harvest index (48.84%) in compare to control or no salinity
stress-imposed plants. Significant differences existed among different levels of micronutrient
applications with respect to yield and yield attributing parameters. A yield advantages of 5.28
g, 5.31 g and 10.94 g hill
−1
over M₁ (No micronutrients), M₃
[B (0.5%)] and M₂ [Zn (0.5%)]
applied pot, respectively was found which was possibly aided by taller plant (86.24 cm), higher
tillers hill
−1
(7.94), longer panicle (22.21 cm), maximum filled grains panicle⁻¹ (67.79), lowest
unfilled grains panicle⁻¹ (12.19), highest weight of 1000-grains (20.93 g), straw yield (26.07 g
hill
−1
), biological yield (56.31 g hill
−1
) and harvest index (53.70%) in the M₄ [Zn + B (0.5%)]
treatment. On the other hand, treatment M₃
[B (0.5%)] gave similar results to M₄
treatment in
some parameters like—plant height, tillers number, leaf length, unfilled grains panicle⁻¹,
panicle length, weight of 1000-grains, straw yield, biological yield and harvest index. M₃
[B
(0.5%)] or M₄ [Zn + B (0.5%)] treatment seemed promising in mitigating salinity stress in rice
field compared to individual application of zinc or boron. Results also showed that V₅ (BRRI
dhan67) exhibited its superiority to other tested variety BINA dhan10, BINA dhan8 and BRRI
dhan29 in terms of seed yield, the former out-yielded over V₁ (BINA dhan10) by 13.34%, V₂
(BINA dhan8) by 1.27% and V₃ (BRRI dhan29) by 1.20 % higher yield. Interaction of S₁V₂M₁
(No saline water × BINA dhan8 × No micronutrients) performed better in most of the studied
parameters. The S₁V₂M₁ treatment combination also showed better performance in terms of
grain yield. Taking together these results suggested that B (0.5%) or Zinc (0.5%) + Boron
(0.5%) combined application along with variety BRRI dhan29 and BRRI dhan67 showed better
performance under salinity stress condition
USE OF MODERN ONION CULTIVATION PRACTICES BY THE FARMERS OF PABNA DISTRICT
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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
AGRICULTURAL EXTENSION & INFORMATION SYSTEM
SEMESTER: JANUARY-JUNE, 2019The objectives of the study were to describe the selected characteristics of the onion
cultivars; to determine the extent of use of modern onion cultivation practices and to
identify the contributing factors that significantly influences use of modern onion
cultivation practices. The study was undertaken purposively in Santhia upazila under
Pabna district. Validated and well-structured interview schedule was used to collect
data from 120 farmers during 15
th
February to 15
th
March, 2021. Descriptive
statistics, multiple regressions were used for analysis. The majority 52.94 percent of
the farmers had medium use of modern onion cultivation practices compared to
having 19.61 percent high and 27.45 percent had low use of modern onion cultivation
practices, respectively. Among 12 selected characteristics of the farmers 4
characteristics namely, education, training exposure, onion cultivation experience and
onion cultivation knowledge of the respondents had significant positive contribution
with their use of modern onion cultivation practices. The rest 8 characteristics namely,
age, farm size, onion cultivation area, annual income family income, income from
onion cultivation, extension contact, problem faced in onion cultivation and attitude
towards onion cultivation had no significant contribution with their use of modern
onion cultivation practices
STUDY ON FIELD AND STORAGE PERFORMANCE IN TERMS OF DISEASES OF SIX BARI ONION VARIETIES
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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
PLANT PATHOLOGYThe experiment was conducted in the field and store house of Spices Research Centre,
BARI Shibganj, Bogura, Bangladesh during 2019-2020 to evaluate the field and storage
performance of six varieties of BARI Piaz viz., BARI Piaz-1, BARI Piaz-2, BARI Piaz3,
BARI
Piaz-4,
BARI
Piaz-5
and
BARI
Piaz-6.
The
field
experiment
was
conducted
for
producing bulbs and observing the field performance. In the field BARI Piaz-4
showed maximum plant height (50.39-71.50 cm), bulb length (7.57cm), bulb diameter
(4.97cm), single bulb weight (71.33g) and yield (36.53t/ha). Where BARI Piaz-5
showed minimum plant height (43.05-58.61 cm), bulb length (4.84cm), bulb diameter
(3.91cm), single bulb weight (41.17g) and yield (14.64 t/ha). On the other hand, highest
disease incidence of purple blotch (4.19%) and Stemphylium (43.41%) were observed
in BARI Piaz-5 where lowest disease incidence of purple blotch (3.49%) and
Stemphylium (34.91%) were observed in BARI Piaz-4. After air dried the harvested
onion bulbs of six varieties were stored in the store house. Bulbs were stored in a
wooden structure under ambient condition. The average air temperature of the store
house was 27.19-29.30℃ and humidity 61.63-80.90%. Different storage
performances were recorded at an interval of 15 days viz., 15, 30, 45, 60, 75, 90, 105,
120, 135 and 150 DAI. Highest number of sprouted bulbs were observed in BARI Piaz3
at 15, 30, 45, 60, 75and 90 DAI. Where lowest number of sprouted bulbs were
observed in BARI Piaz-4. Total percent of sprouted bulbs 8.51%, 38.51%, 46.34%,
14.33%, 29.67% and 15% were observed in V
1,
V
2,
V
3,
V
4,
V
5
and V
6
respectively.
Highest number of rotten bulbs were observed in BARI Piaz-3 and lowest number of
rotten bulbs were observed in BARI Piaz-4. Total percent of rotted bulbs 56.17%,
56.83%, 73.17%, 40.27%, 58.16% and 62.99% were observed in V
1,
V
2,
and
V
6
respectively. At storage, total maximum bulb weight loss 78.70% was observed in
BARI Piaz-3 where minimum weight loss 49.42% was observed in BARI Piaz-4. From
the study it is found that BARI Piaz-4 performed best than the other varieties at storage.
Where BARI Piaz-3 showed lower performance. Aspergillus niger, Fusarium sp. and
Penicillium sp. have been found to cause diseases during postharvest storage condition.
In this study, 65% rotten of onion bulbs by Aspergillus niger, 20% by Fusarium sp.,
10% by Penicillium sp. and 5% by other pathogens were found
INFLUENCE OF ORGANIC MANURES ON GROWTH AND YIELD OF MINT, CHILLI AND INDIAN SPINACH USING GEOTEX VERTICAL FARMING TECHNOLOGY
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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
HORTICULTUREThe experiment was carried out at the “Horticulture Farm” of Sher -e-Bangla
Agricultural University, Dhaka, Bangladesh during December 2019 to May 2020 to
study the effect of different organic manures on growth and yield of horticultural crops
like mint, chilli and indian spinach. (7x4) sq feet vertical structure was used. Each
pocket contains 4 kg growing media. Long lasting and eco friendly geo textile cloth was
used to make pocket for crop plantation. Those pockets were attached with vertical
structure. The experiment consisted of one factor and these are T
1
iii
:Control; T
2
:2 kg
vermicompost and 2 kg soil per pocket; T
3
:1.5 kg vermicompost, 0.5 kg coco fibre and
2 kg soil per pocket and T
4
:2 kg kitchen compost and 2 kg soil per pocket. The
experiment was laid out in a Randomized Complete Block Design (RCBD) with three
replications. Data were recorded on growth, yield components and yield of mint, chilli
and indian spinach and significant variation was observed for most of the studied
characters. In case of mint the highest production from individual plant was recorded
from T
3
(1.5 kg Vermicompost, 0.5 kg coco fibre and 2 kg soil per pocket) which was
151.40 g per plant. The lowest production from individual plant was recorded from T
1
(control) which was 80.00 g per plant. In case of chilli results revealed that the highest
fruit production (88.43 g) was obtained from T
3
(1.5 kg vermicompost, 0.5 kg coco
fibre and 2 kg soil per pocket) which was significantly different from others treatments.
On the other hand the lowest fruit production (24 g) was obtained from T
1
(control)
which was statistically similar to T
4
(2 kg kitchen compost and 2 kg soil per pocket) and
the yield was 29.67 g. In case of indian spinach the highest production from individual
plant was recorded from T
3
(1.5 kg vermicompost, 0.5 kg coco fibre and 2 kg soil per
pocket) which was 290.66 g. The lowest production from individual plant was recorded
from T
1
(control) which was 71.33 g
RESIDUAL EFFECT OF CHITOSAN RAW MATERIAL POWDER ON YIELD PERFORMANCE OF OKRA (Abelmoschus esculentus L.) UNDER TOMATO-OKRA CROPPING SYSTEM
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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 (MS)
IN
SOIL SCIENCE
SEMESTER: JANUARY-JUNE, 2021An experiment was conducted at the central farm of Sher-e-Bangla Agricultural
University, Dhaka-1207, Bangladesh, during the kharif 1 season (May to September,
2019) to examine the residual effect of chitosan raw material powder on yield
performance of okra under tomato-okra cropping system. BARI Dheros-1 was used as
test crop. The experiment was carried out in the Randomized Complete Block Design
(RCBD) with the four replications. The experiments were consist of five treatments
having four levels of CHT raw material powder. The treatments were T
1
= 0% CHT
raw material powder (control), T
2
= 0.1% CHT raw material powder applied in the
previous expt., T
3
= 0.2% CHT raw material powder applied in the previous expt., T
4
=
0.3% CHT raw material powder applied in the previous expt. and T
5
= 0.4% CHT raw
material powder applied in the previous expt. .Yield and yield contributing characters
positively responded with increasing rate of CHT raw material powder. The fruit yield
significantly increased in T
4
treatment 7.31 t ha
-1
(45.08% yield increased over the
control) compared to T
1
control treatment 5.04 t ha
-1
. But T
3
treatment shows
statistically identical fruit yield 6.36 t ha
-1
(26.19% yield increased over the control)
compare to the T
1
control 5.04 t ha
-1
. The residual effect of the chitosan raw material
powder has a positive effect on the increase of total nitrogen, the highest N value 0.112
% was recorded in T
5
treatments and lowest value was observed in T
1
control treatment.
From the three layer of soil the maximum value of the soil pH 6.74, 6.66 and 6.53 of 030
cm,
30-60
cm
and
60-90
cm
respectively,
organic
carbon
content
0.70%,
0.66%
and
0.60%
of 0-30 cm, 30-60 cm and 60-90 cm respectively, and organic matter content
1.21%, 1.14%, and 1.03% of 0-30 cm, 30-60 cm and 60-90 cm respectively in the postharvest
soils were found in the T
5
treatment and lowest values were observed in the
control treatment. Above discussion revealed that the yield and yield contributing
characters of okra and some chemical properties of soil were improved due to the
residual effect of CHT raw material powder. Residual nitrogen value indicates that the
CHT raw material powder has a slow releasing nitrogen supplementation, soil organic
carbon and soil pH. These results suggest that the residual effect of CHT raw material
powder could play an important role to improve the sustainable soil health