| dc.contributor.advisor | Dr. Dipak Kumar Aditya | |
| dc.contributor.author | HOSSAIN, MD. MUAZZEM | |
| dc.date.accessioned | 2022-04-16T06:22:56Z | |
| dc.date.available | 2022-04-16T06:22:56Z | |
| dc.date.issued | 1993-09 | |
| dc.identifier.uri | http://localhost:8080/xmlui/handle/123456789/83 | |
| dc.description | Onion (Allium cepa L.) is one of the most important crop
belonging to the family Alliaceae. It is widely cultivated
throughout Bangladesh. However, commercial cultivation is
predominantly concentrated in greater districts of Dhaka,
Faridpur, Rangpur, Pabna and Rajshahi. Onion in this country is
largely used as spice.
Consumption of onion in Bangladesh is much higher than the
total production in the country. The annual requirement of onion
in Bangladesh is 450 thousand tons (Rahim, 1992), while only
143.0 thousand tons are being produced in the country at present
(BBS, 1992). The deficit quantity is being imported from
neighbouring countries. | en_US |
| dc.description.abstract | The experiment was conducted at the Horticulture Farm of
Bangladesh Agricultural University to study the effects of
frequency and depth of irrigation on growth and yield of onion
cv. Taherpuri during October, 1990 to April, 1991. There were
three different frequencies of irrigation viz. at 15%, 30% and
45% depletion of available soil moisture and three different
depths of irrigation viz. 5 mm less than, equal to and 5 mm more
than the soil moisture depletion in the root zone.
The frequency and depth of irrigation significantly affected
the growth and yield of onion. Plant height, average length of
leaves and bulb diameter increased significantly with irrigation
at 15% depletion of soil moisture regime. Yield of onion bulbs
was maximum (12.4 t/ha) by irrigation at 15% depletion of soil
moisture regime along with a irrigation depth of 5 mm more’ than
the amount of depletion of soil moisture in the root zone. The
total water used at that treatment was 264.1 mm. Decreasing the
depth of irrigation under same regime significantly decreased the
yield. Although bulb yield increased by irrigation, but
irrigation induced a higher percentage of splitted bulb. However,
higher proportion of large size ‘A’ (>44 mm in diameter) grade
bulbs were obtained by irrigation. Maximum A grade bulbs (33.7%)
were produced by irrigation at 15% depletion along with a
irrigation depth of 5 mm more than the soil moisture depletion. | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | Bangladesh Agricultural University Mymensingh | en_US |
| dc.subject | Physical properties of experimental soil. | en_US |
| dc.subject | Values of neutron probe count and corresponding soil moisture content (SMC) in percent | en_US |
| dc.subject | Total water use (TWU) of onion in different irrigation treatments | en_US |
| dc.subject | Main effects of frequency and depth of irrigation on growth and yield of onion | en_US |
| dc.title | EFFECTS OF FREQUENCY AND DEPTH OF IRRIGATION ON GROWTH AND YIELD OF ONION by MD. MUAZZEM HOSSAIN | en_US |
| dc.type | Thesis | en_US |
