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Performance of Fertigation System on Bottle Gourd Cultivation (2019-2020)

M. A. Hossain
CSO and Head
IWM Division, BARI, Gazipur

S. K. Biswas
SSO
IWM Division, BARI, Gazipur

K. F. I. Murad
SO
IWM Dision, BARI, Gazipur

A. T. M. Masud
PSO
Vegetables Division, BARI, Gazipur

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, 2018-2019 and 209-20 to determine the performance of bottle gourd (var. BARI Lau- 3) under fertigation systems. During the rabi season of 2018-19 the experiment was conducted but after two harvest the plants were damaged due to heavy rainfall and wind speed. 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. From the two years average data the highest yield of 39.3 t/ha was obtained from treatment T₄ by applying 35% less N and K than recommended doses through drip system followed by treatment T₅ (34.7 t/ha) by applying 50% less N and K than recommended doses through drip system. Ring basin method required 404 mm and 313mm of water during the season whereas only 177 mm and 141 mm water was needed in drip method. About 55% water was saved in drip fertigation system than ring basin method. The economic analysis revealed that the highest benefit cost ratio (3.16) was obtained from treatment T₄ by applying 35% less N and K than recommended doses through drip system followed by treatment T₅ (2.81) by applying 50% less N and K than recommended doses through drip system.

Keywords: Bottle gourd, Fertigation systems, Economics performance, Fertigation system

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

Start Date: 00-00-2017

End Date: 00-00-2020

Program Area: Crop-Soil-Water Management

Commodity: Fertilizer, Water management, Bottle gourd

Objectives:

Objectives of the study
• To determine the performance of bottle gourd under fertigation systems in the context of our country for higher yield of bottle gourd
• To study the economics performance of fertigation system

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, 2018-19 and 2019-20. During the rabi season of 2018-19 the experiment was conducted but after two harvest the plants were damaged due to heavy rainfall and wind speed. So, Findings of the results during 2017-18 and 2019-20 were presented in this report. Five treatments including a 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 and 24 October 2019 to produce seedlings and these were transplanted in experimental plots on 13 December 2017 and 16 November 2019. Fruits were harvested from 11 March 2018 and continued upto 16 April 2018 during 2017-18 but during the year 2019-20, fruits were harvested from 25 February and continued upto 10 April 2020 . The N and K in the form of urea and MP, respectively, were applied with irrigation water as per 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. Cowdung 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 [118] gravimetric method for control treatment. Irrigation was applied upto the field capacity of the soil. In drip system, irrigation was applied at every alternate day meeting the demand of crop evapotranspiration. The average dripper discharge was 3.75 litres/hr. Experimental irrigation schedule was started just after plant establishment. In the early stage of crop, the irrigation time was 25 minutes in drip system and in 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 tank for four fertigation treatments (T₂ – T₅) were placed at a height of 1.0 m from the ground surface supported by bamboo structure on one side of the treatments. Each drum had a capacity of 215 litres of water. A water tap was attached to one side of the bottom part of each drum to which 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 2019-2020, Irrigation and Water Management Division, BARI, Gazipur

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

From the two years study, the highest yield of bottle gourd 39.30 t/ha was obtained from treatment T₄ by applying 35% less N and K than recommended doses through drip system followed by treatment T₅ (34.70 t/ha) by applying 50% less N and K than recommended doses through drip system. From the economic point of view, fertigation system was more profitable over traditional irrigation system.

Knowledge Management: Report/Proceedings