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Impact of Nitrogen and Phosphorus on the Growth and Yield of Okra [abelmoschus Esculentus (l.) Moench] in Hill Slope Condition

Z. A. FIROZ
Agricultural Research Station, Raikhali, Chandraghona, Rangamati, Bangladesh.

Abstract/ Executive Summary:

An experiment was conducted at the Hill Agricultural Research Station, Khagrachari from June to November 2004 to find out the effect of nitrogen (60, 80, 100 and 120 kg/ha) and phosphorus (80, 100 and 120 kg/ha) on the growth and yield of okra in hill slope condition during rainy season. The highest yield (16.73 t/ha) was obtained from 100 kg N/ha, which was statistically identical to 120 kg per hectare. In case of phosphorus, the highest yield of 15.77 t/ha was obtained from 120 kg P₂O₅/ha and was closely followed by the dose of 100 kg P/ha (4.73 t/ha). Considering the treatment combinations, the highest yield (19.22 t/ha) was produced by N100P120 and there were no significant variations among N100P100, N120P100 and N120P120. The highest gross return (Tk.193200) and net return (Tk.146l40) were obtained from N100P120. The BCR was also higher (4.08) under the same treatment combination.

Keywords: Nitrogen, Phosphorus, Okra, Growth and yield

Location: Hill Agricultural Research Station, Khagrachari

Start Date: 00-06-2004

End Date: 00-11-2004

Program Area: Crop-Soil-Water Management

Commodity: Okra

Objectives:

To determine appropriate dose of nitrogen and phosphorus for better yield of okra in hill slope condition.

Methodology:

The experiment was conducted at the Hill Agricultural Research Station, Khagrachari from June to November 2004. The soil in the area belongs to brown hill soil type series under Northern and Eastern Hills (AEZ-29). It is generally well drained and clay loam in texture. Two factors experiment was laid out in RCBD with three replications. The treatments of the experiment were four nitrogen doses viz. 60, 80, 100 and 120 kg/ha and three doses of phosphorus viz. 80, 100 and 120 kg/ha. Thus there were 36 units (4 × 3 × 3) in total. Moreover, lime at 1.0 t, cowdung 10.0 t, gypsum 100 kg, zinc 10 kg and boron 10 kg per hectare were used to all treatments. The unit plot size was 2.4m × 2.4m. The plot and blocks were separated by 0.5 m and 1.0m, respectively. Seeds of okra were sown on 05 July 2004 at spacing 60 × 40 cm. Intercultural operations were done as and when necessary. Harvesting of fruits started on 20 August and continued up to 30 October 2004. Data of plant growth and yield contributing characters were recorded from ten randomly selected plants, but yield was recorded on plot basis. Collected data were subjected to statistically analysis by F-test and the difference between the treatments means were judged by Duncan’s Multiple Range Test (DMRT).

Source of Information: Bangladesh J. Agril. Res. 34(4) : 713-722, December 2009, ISSN 0258-7122

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The above results revealed that N₁₀₀P₁₂₀ is most suitable for better production of okra in hill slope condition during the rainy season.

Knowledge Management: Journal