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Development of Fertilizer Recommendation for Garlic with Coriander Intercropping System

F S Shikha
Regional Agricultural Research Station, BARI, Jamalpur

M Yasmin
Regional Agricultural Research Station, BARI, Jamalpur

M A Rahman
Regional Agricultural Research Station, BARI, Jamalpur

S Akhter
Regional Agricultural Research Station, BARI, Jamalpur

Abstract/ Executive Summary:

A field trial was conducted at Regional Agricultural Research Station (RARS), Jamalpur during the period of 2018-2019 to develop a fertilizer recommendation for garlic with coriander intercropping system. There were six treatments comprising T₁= 100% RDCF of garlic+ 0% RDCF of coriander , T₂= 100% RDCF of garlic+ 10% RDCF of coriander, T₃= 100% RDCF of garlic+ 20% RDCF of coriander, T₄= 100% RDCF of garlic+3 0% RDCF of coriander, T₅= 100% RDCF of garlic+ 40% RDCF of coriander, T₆= 100% RDCF of garlic+ 50% RDCF of coriander. Significantly the highest yield (6.36 t ha. ^-1) was obtained from T₆(100% RDCF of garlic+ 50% RDCF of coriander) treatment which was statistically identical with T₅( 100% RDCF of garlic+ 40% RDCF of coriander) treatment. Significantly highest foliage yield (4.32 t ha. ^-1) of coriander was obtained from the T₆( 100% RDCF of garlic+ 50% RDCF of coriander) treatment which was statistically identical with T₅( 100% RDCF of garlic+ 40% RDCF of coriander) treatment (4.26 t ha. ^-1). The highest net return ( 596400 Tk ha. ^-1) was obtained from T₆(100% RDCF of garlic+ 50% RDCF of coriander) treatment which was followed by T₅( 100% RDCF of garlic+ 40% RDCF of coriander) treatment ( 423484 Tk ha. ^-1) and the productivity was increased up to 0.29 to 0.69 % with increasing doses of fertilizers. But the highest BCR (3.59) was obtained from T₅( 100% RDCF of garlic+ 40% RDCF of coriander) treatment which was followed by T₆(100% RDCF of garlic+ 50% RDCF of coriander) treatment (3.56 ) and the lowest net return (201335 Tk ha. ^-1) from T₁(100% RDCF of garlic+ 0% RDCF of coriander) treatment . Although the highest yield (6.36 t ha. ^-1) was obtained from T₆(100% RDCF of garlic+ 50% RDCF of coriander) treatment, BCR was lower than T₅( 100% RDCF of garlic+ 40% RDCF of coriander) treatment due to higher cost of inorganic fertilizers.

Keywords: Intercropping, Garlic, Coriander

Location: Regional Agricultural Research Station (RARS), BARI under Jamalpur District

Start Date: 00-00-2018

End Date: 00-00-2019

Program Area: Farming System

Commodity: Garlic, Coriander

Objectives:

The present study has been planned to find out the optimum fertilizer dose for coriander –garlic intercropping system.

Methodology:

The experiment was started in 2018-19 period at the field of Regional Agricultural Research Station (RARS) under Jamalpur district in Bangladesh. Before initiation the experiment, the soil samples were collected from a depth of 0-20 cm for each replication and analyzed following standard methods (Table 1). The chemical properties of soils in the experimental site was silt clay loam in texture belonging to Sonalata series under Agro-Ecological Zone-8/9 (AEZ-8/9), 24?56´11´´N latitude and 89?55´54´´E longitude and an altitude of 16.46m. Nutrient status of initial soil prior to fertilization was recorded. The experiment was laid out in Randomized Complete Block (RCB) design with six treatments replicated thrice. The unit plot size was 1. 2 m x 2.4 m. There were six treatments viz. T₁= 100% RDCF of garlic+ 0% RDCF of coriander , T₂= 100% RDCF of garlic+ 10% RDCF of coriander, T₃= 100% RDCF of garlic+ 20% RDCF of coriander, T₄= 100% RDCF of garlic+3 0% RDCF of coriander, T₅= 100% RDCF of garlic+ 40% RDCF of coriander, T₆= 100% RDCF of garlic+ 50% RDCF of coriander. The seeds of garlic (var. BARI rasun - 2) and coriander (var. BARI dhania - 1) were sown on 14 November, 2018 spacing for garlic was 10 cm X 10 cm . Nitrogen, phosphorus, potassium, sulphur, zinc and boron were used in the form of urea, TSP, MoP, gypsum, zinc sulphate and boric acid, respectively. All P, K, S, Zn, B and ¹/₃^rd urea-N were applied at the time of final land preparation and the remaining ²/₃rd urea-N was applied in two equal installments at 30 and 50 days of sowing. First time sowing coriander was harvested at 40 days after sowing (DAS) and second time sowing of coriander was harvested at 45 days after sowing (DAS). All the intercultural operations such as irrigation, weeding, insect control etc. were done as and when necessary.

Garlic was harvested on 07 February, 2019. Bulb yield was calculated in ton per hectare considering the whole plot as harvested area. Ten plants of garlic from each plot were selected randomly to collect data on yield components. Data on yield and yield contributing characters were recorded and analyzed statistically using statistical software STAR which was developed by IRRI. The analyzed data were compared with Least Significant Difference (LSD) test at 5% level. The Garlic Equivalent Yield (GEY) was calculated by using formula given Ahlawat and Sharma (1993), as follows –

Yield of coriander (t ha ^-1)

GEY = ---------------------------------- X Economic value of coriander (Tk ton ^-1)

Price of garlic (tk ha ^-1)

Source of Information: Annual Research Report - 2018-19, Regional Agricultural Research Station, BARI, Jamalpur

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Considering the results of this year, the T₅( 100% RDCF of garlic+ 40% RDCF of coriander) treatment was the most profitable compared to other fertilizer packages in garlic – coriander intercropping system. This is the 1^st year study, the experiment should be repeated to the next year for conformation of the result.

Knowledge Management: Report/Proceedings