EFFECT OF BIOCHAR ON SOIL STATUS, YIELD AND PROCESSING QUALITY OF POTATO VARIETIES
Date
2018-06
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
DEPARTMENT OF AGRONOMY, SHER-E-BANGLA AGRICULTURAL UNIVERSITY, DHAKA-1207
Abstract
The experiment was conducted at Sher-e-Bangla Agricultural University, Dhaka1207,
during
the
period
from
November,
2017
to
April,
2018
to
evaluate
the
effect
of
variety
and biochar on yield and some quality parameters of potato along with soil
properties. The experiment is consisted of two factors, i.e., factor A:Potato varieties
(3): V
1
: BARI Alu-29 (Courage), V
2
: BARI Alu-28 (Lady Rosetta) and V
3
: BARI
Alu-25 (Asterix); factor B: Biochar level (5): B
0
1
and B
3
: 7.50 t ha
-1
and B
4
: 10 t ha
-1
: 0 t ha
-1
, B
1
: 2.50 t ha
. Fifteen treatment combinations were used under
study and was laid out in a randomized complete block design with 3 replications.
The present investigation revealed that biochar had significant effect on most of the
growth, yield and quality contributing parameters of potato studied in this experiment.
Results showed that growth, yield and quality contributing parameters of potato
increased with increasing biochar level. Biochar has also significant positive effect on
sol properties such as soil pH, organic carbon and potassium content but not on
nitrogen content. The soil properties results exhibited that pH level, organic carbon
and potassium content increased with increasing biochar level. Among the fifteen
treatment combination, Asterix with biochar level 10 t ha
-1
performed superior than
other combination in most of the parameters and it produced the maximum potato
yield (27.33 t ha
-1
), marketable potato yield (21.30 t ha
-1
), specific gravity (1.09),
potato dry matter (22.01 %), seed potato yield (20.39 t ha
-1
), grade ‘A’ potato yield
(6.35 t ha
-1
), grade ‘B’ potato yield(6.28 t ha
-1
), French fry (5.70 t ha
)and chips
potato yield (9.03 t ha
-1
), total soluble sugar content (5.07), soil pH (6.61), soil
organic carbon content (1.16%) and available potassium content in soil (0.25 %). But
in case of yield V
3
B
4,
V
3
B
3
, V
3
B
2
and in case of dry matter content V
3
and
V
2
B
4
combinations are statistically similar. Whereas no biochar (B
0
) treatment
showed the lowest values irrespective of varieties. It may be concluded that biochar
level @ 5.00 t ha
-1
would be applied for maximizing yield and dry matter content. But
in case of quality parameters 10 t ha
-1
showed the best performances.
-1
, B
2
-1
B
3,
: 5.00 t ha
V
3
B
2
-
Description
AThesis
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 (MS)
IN
AGRONOMY
SEMESTER: JANUARY- JUNE, 2018
Keywords
BIOCHAR, SOIL STATUS, POTATO VARIETIES