| dc.contributor.advisor | Md. Hafiz All Amin | |
| dc.contributor.author | DAS, BABUL CHANDRO | |
| dc.date.accessioned | 2022-04-19T08:28:44Z | |
| dc.date.available | 2022-04-19T08:28:44Z | |
| dc.date.issued | 2012-07 | |
| dc.identifier.uri | http://localhost:8080/xmlui/handle/123456789/229 | |
| dc.description | Bangladesh is mainly an agro-based country. It.is a thickly populated small country
with an area of 14.48 million ha. According to an estimate by Bhuiyan et al., 2002,
net cultivable land would decrease from 8.42 million ha in 2000 to 7.89 million ha in
2025 and population would increase from 127.22 million in 2000 to 168.96 million
in 2025. The per capita net cultivable land would reduce from 0.066 ha in 2000 to
0.047 ha in 2025 (Bhuiyan et al., 2002). The population has doubled in the last 30
years despite a decline in the annual population growth rate from 2.26 in 1961 to
1.47 in 2004. Agriculture is the single largest producing sector of the economy since
it comprises about 20.87 % of the country's GDP (BBS, 2009) and manpower in
agriculture is 62 % (Handbook of Agricultural Statistics, 2007). Most of the peoples
depend on agriculture for their livelihood but the existing land use system with
separate allocation to agriculture and forest, and due to limited application of new
modern inputs and techniques, its per hectare yield of crop is poor. The existing land
use system appears inadequate to meet the requirement for basic needs of people.
The increasing demand and high prices of forest products (like fuelwood, timber,
pulp, fruits, fodder etc) is a major reason for farmers to plant trees in association
with agricultural crops. | en_US |
| dc.description.abstract | An experiment was carried out at the Agroforestry Research Farm, Hajee Mohammad
Danesh Science and Technology University, Dinajpur, during December, 2010 to
March, 2011 to study the effect of shade and intra-row plant spacing on the yield and
yield contributing characters of potato for agroforestry system. Potato was planted in the
floor of mango tree species and also a control (Open field) with three plant spacing’s
viz. 60 x 20, 60 x 25 and 60 x 30 cm’. The experiment was laid out in the two factorsfactorial experiment in Randomized Complete Block Design (RCBD) with 4 (four)
replications. The result of the experiment revealed that there was a significant effect of
intra-row plant spacing and different production system on the growth, yield
contributing characters and yield of potato. Among the three intra-row plant spacing, the
widest plant spacing (60 x30 cm’) gave the maximum weight of tuber hill! (236.20 g)
whereas the closest plant spacing (60 x 20 cm’) gave the minimum weight of potato hill”
' (228.70 g), but the closest plant spacing (60 x 20 cm?) gave the maximum yield (19.33
t/ha) whereas the widest plant spacing (60 x 30 cm’) gave the minimum yield (16.30
t/ha). The result also exposed that, potato production under in sole cropping (To) was
higher (20.25 t/ha) compared to mango based agroforestry system (T;), but the
maximum percent (%) dry weight (14.50 g) of potato was recorded in mango based
agroforestry system (T;) compared to sole cropping (To). The combined effect of
different production system and plant spacing revealed that the closest spacing (60 x 20
cm’) applied at open condition (ToS9) gave the highest yield of potato (20.22 t/ha) than
any other combination. The treatment combination, the closest spacing (60 x 20 cm’)
applied at mango based agroforestry system (T,So) gave the second highest yield of
potato (18.43 t/ha). From the economic analysis, it was observed that the higher BCR
(2.14) was recorded in mango based agroforestry system. On the other hand, the lower
BCR (1.78) was received from the sole cropping of potato. Finally it may be concluded
that out of the three plant spacing, the closest spacing (60 x 20 cm’) would be the best
treatment to be grown under mango based agroforestry system considering the
additional returns as per investment in terms of money and time. | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | HAJEE MOHAMMOD DANESH SCIENCE AND TECHNOLOGY UNIVERSITY, DINAJPUR | en_US |
| dc.subject | Experimental period | en_US |
| dc.subject | Seed collection | en_US |
| dc.subject | Structure of the experiment | en_US |
| dc.subject | Land preparation | en_US |
| dc.subject | Application of fertilizers and manures | en_US |
| dc.subject | Planting of tubers | en_US |
| dc.title | EFFECT OF SHADE AND INTRA-ROW PLANT SPACING ON THE YIELD AND YIELD CONTRIBUTING CHARACTERS OF POTATO (Solanum tuberosum L.) FOR AGROFORESTRY SYSTEM | en_US |
| dc.type | Thesis | en_US |
