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Performance of Fertigation System on Bottle Gourd Cultivation (2018–2019)

M. A. Hossain
Senior Scientific Officer
IWM Division, Bangladesh Agricultural Research Institute (BARI), Gazipur-1701

S. K. Biswas
Senior Scientific Officer
IWM Division, Bangladesh Agricultural Research Institute (BARI), Gazipur-1701

K. F. I. Murad
Scientific Officer
IWM Division, BARI, Gazipur-1701

A. Khatun
Chief Scientific Officer and Head
IWM Division, BARI, Gazipur-1701

A. T. M. Masud
Principal Scintific Officer
Horticultural Research Centre (HRC), BARI, Gazipur-1701

Abstract/ Executive Summary:

An experiment was conducted at the research field of Irrigation and Water Management (IWM) Division, Bangladesh Agricultural Research Institute (BARI), Joydebpur, Gazipur during the rabi season of 2017-18 to determine the performance of bottle gourd (var. BARI Lau- 3) under fertigation systems. Six different irrigation treatments T₁= Ring Basin irrigation at 7 days interval with recommended fertilizer doses, T₂= Fertigation at an alternate day with recommended fertilizer doses, T₃= Fertigation at an alternate day with 20% less N and K than recommended doses, T₄= Fertigation at an alternate day with 35% less N and K than recommended doses, T₅= Fertigation at an alternate day with 50% less N and K than recommended doses were selected. The highest yield of 37.20 t/ha was obtained from treatment T₄ by applying 35% less N and K than recommended doses through drip system followed by treatment T₅ (33.02 t/ha) by applying 50% less N and K than recommended doses through the drip system. Ring basin method required 404 mm of water during the season whereas only 107 mm water was needed in the drip method. The economic analysis revealed that the highest benefit-cost ratio (2.99) was obtained from treatment T₄ by applying 35% less N and K than recommended doses through drip system followed by treatment T₅ (2.67) by applying 50% less N and K than recommended doses through the drip system. During the rabi season of 2018-19, the experiment was conducted but after two harvests the plants were damaged due to heavy rainfall and wind speed.

Keywords: Performance, Bottle gourd, Fertigation systems, Higher yield

Location: Irrigation and Water Management Division of Bangladesh Agricultural Research Institute, Joydebpur, Gazipur.

Start Date: 00-00-2017

End Date: 00-00-2018

Program Area: Crop-Soil-Water Management

Commodity: Water management, Bottle gourd

Objectives:

To determine the performance of bottle gourd under fertigation systems in the context of our country for higher yield of bottle gourd.

Methodology:

The experiment was conducted on bottle gourd (BARI Lau-3) in the field of Irrigation and Water Management Division of Bangladesh Agricultural Research Institute, Joydebpur, Gazipur. during rabi seasons of 2017-2018. Five treatments including control were designed for the experiment. Each treatment was replicated thrice. The treatments were:

T₁= Ring Basin irrigation at 7 days interval with recommended fertilizer doses

T₂= Fertigation at an alternate day with recommended fertilizer doses

T₃= Fertigation at an alternate day with 20% less N and K than recommended doses

T₄= Fertigation at an alternate day with 35% less N and K than recommended doses

T₅= Fertigation at an alternate day with 50% less N and K than recommended doses

Each plot size was 4.0m × 4.0m. The soil was silty clay loam with an average bulk density of 1.5 gm/cc and field capacity of 28 percent (by weight basis). The experiment was laid out in a randomized complete block design. Seeds were shown on 18 November 2017 to produce seedlings and these were transplanted in experimental plots on 13 December 2017. Fruits were harvested from 11 March 2018 and continued up to 16 April 2018. The N and K in the form of urea and MP, respectively, were applied with irrigation water as per the design of the treatments. The total P in the form of TSP, Gypsum, Borax Zn and Magnesium were applied as the basal dose in the pit. Cow-dung was applied at the rate of 10 kg/pit. Depleted soil moisture was applied to the soil in-ring basin irrigation method (control). Soil moisture was determined before each irrigation by the gravimetric method for the control treatment. Irrigation was applied up to the field capacity of the soil. In the drip system, irrigation was applied every alternate day meeting the demand for crop evapotranspiration. The average dripper discharge was 3.50 liters/hr. The experimental irrigation schedule was started just after plant establishment. In the early stage of the crop, the irrigation time was 25 minutes in the drip system and in the fruiting stage, it was up to 60 minutes depending on crop ET. Data in respect of yield and yield contributing parameters viz. fruit weight, length, breadth, no. of fruits/plant and total yield were recorded.

Fertigation system

Four tanks for four fertigation treatments (T₂ – T₅) were placed at a height of 1.0 m from the ground surface supported by a bamboo structure on one side of the treatments. Each drum had a capacity of 215 liters of water. A water tap was attached to one side of the bottom part of each drum to which the fertigation system was connected. The drippers were set according to the plant spacing in the treatments. Each plant received an emitter through which, water was applied to the plant in drips.

Source of Information: Annual Research Report 2018–2019, IWM Division, BARI, Joydebpur, Gazipur, Bangladesh

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The highest yield of bottle gourd 37.20 t/ha was obtained from treatment T₄ by applying 35% less N and K than recommended doses through drip system followed by treatment T₅ (33.02 t/ha) by applying 50% less N and K than recommended doses through the drip system. This is the first-year result. In the 2nd year, the experiment was conducted but after two harvests the crops were damaged due to heavy rainfall and wind speed. So, the experiment should be continued for the next year.

Knowledge Management: Report/Proceedings