EFFECT OF SPLIT APPLICATION OF N, K AND FYM LEVELS ON THE PRODUCTIVITY OF SEED POTATO DERIVED FROM TRUE POTATO SEED
Date
2017-06
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
INSTITUTE OF SEED TECHNOLOGY, SHER-E-BANGLA AGRICULTURAL UNIVERSITY DHAKA 1207
Abstract
ABSTRACT
A field experiment was carried out during the period from November, 2016 to
April, 2017 at the farm of Sher-e-Bangla Agricultural University, Dhaka, to
investigate the effect of split application of N, K and FYM levels on the
productivity of seed potato derived from true potato seed (TPS). Three
Nitrogen (N) levels viz., N
1
= 60 kg N ha
-1
at planting + 60 kg N ha
at first
earthing up, N
2
= 60 kg N ha
-1
at planting + 30 kg N ha
-1
at first earthing up +
30 kg N ha
-1
at second earthing up and N
3
= 60 kg N ha
-1
at planting + 20 kg N
ha
-1
at first earthing up + 20 kg N ha
-1
at second earthing up + 20 kg N ha
at
60 DAP, two Potassium (K) levels viz., K
1
= 60 kg K ha
-1
-1
at planting and K
=
30 kg K ha
-1
at planting + 30 K ha
-1
at first earthing up and two Farm Yard
Manure (FYM) levels viz., F
1
1
= 6 t FYM ha
-1
at planting and F
2
-1
= 10 t FYM ha
at planting were considered for the experiment. The experiment was laid out
in a split split plot design with three replications. The collected data on
different growth and yield parameters were analyzed statistically. Results
revealed that all the treatment combinations showed promising effect on yield
and yield attributes of potato. It was observed that the highest weight of tuber
hill
-1
(0.284 kg), tuber yield (37.87 t ha
-1
) and „A‟ graded seed potato yield
(10.60 t ha
-1
) was found from N
1
K
2
F
but the highest non-seed potato yield
(22.47 t ha
-1
) was found from N
3
K
1
F
1
2
. But the highest percent of seed potato
yield by weight (70.66%), „B‟ graded seed potato yield (8.98 t ha
) and percent
of non-seed potato yield by weight (65.00%) were found from N
where
the lowest number of stem hill
-1
(2.00), weight of tuber hill
-1
(0.173 kg), tuber
yield (23.00 t ha
-1
), seed potato yield (9.93 t ha
-1
), „A‟ graded seed potato yield
(5.78 t ha
-1
) and „B‟ graded seed potato yield (4.15 t ha
-1
) were also achieved
from N
3
K
2
F
2
.
-1
2
K
1
F
1
2
-
Description
A Thesis
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 TECHNOLOGY
SEMESTER: JANUARY - JUNE, 2017
Keywords
FYM LEVELS, SEED POTATO, TRUE POTATO SEED