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Growth and Yield of Okra Influenced by Different Types of Fertilizers and Netting

MA Muqtadir
Department of Horticulture, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

MA Islam
Department of Horticulture, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

T Haque
Department of Horticulture, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

A Nahar
Department of Horticulture, Bangladesh Agricultural University, Mymensingh 2202, Bangladesh

Abstract/ Executive Summary:

An experiment was conducted at the Horticulture Farm of Bangladesh Agricultural University, Mymensingh during the period from March 2017 to June 2017 with a view to evaluate the effect of different types of fertilizer and netting on the growth and yield of okra. The experiment consisted of 4 levels of fertilizer following cow dung 15 t/ha (F₁), inorganic fertilizer (NPK) (F₂), combined application of cow dung (2/3) + inorganic fertilizer (1/3) (F₃), control (F₄) and 2 levels of mosquito netting (N₀ = control with no netting, N₁=blue colour Netting). The experiment was laid out in Randomized Complete Block Design (RCBD) with 3 replications. Overall, the growth like plant height, leaf length, pod length, pod diameter and pods numbers of okra was found higher from the combined effect of F₃N₁ which was significantly different from other treatments combination. The lowest growth and yield of okra was found from the treatment combination of F₄N₀(control). First flowering were observed in F₃N₁ at 39 days after planting of okra seeds. The control treatment without net gave the lowest production of okra compared to combination of inorganic fertilizer and cow dung with netting. In case of fertilizers effect, the highest yield (16.06 t/ha) was found from F_3. Blue colour net gave the highest yield (10.99 t/ha) compared to without net (8.88 t/ha). The highest yield of okra (17.55 t/ha) was found from the combined effect of F₃N₁ which was 78.52% higher compared to control treatment combination F₄N₀ (3.77 t/ha).

Keywords: Cow dung; Inorganic fertilizers; Net; Okra; Yield

Location: Horticulture Farm of Bangladesh Agricultural University (BAU), Mymensingh

Start Date: 00-03-2017

End Date: 00-06-2017

Program Area: Crop-Soil-Water Management

Commodity: Fertilizer, Vegetables

Objectives:

To find out the better combination of fertilizers (cow dung and inorganic fertilizer) with net on the growth and yield of okra.

Methodology:

The experiment was conducted at the Horticulture Farm of Bangladesh Agricultural University (BAU), Mymensingh during the period from March, 2017 to June, 2017. It belongs to the Old Brahmaputra Flood Plain under AEZ (Agro Ecological Zone) 9. It was fertile and well drained and slightly acidic with pH (6.85), having low organic matter with good irrigation facilities. One okra variety was used as the experimental material for this experiment named ‘Momotaz Hybrid F_1’. The seeds were collected from Notun Bazar in Mymensingh District. The variety is developed by Partex Agro Limited. Seeds were sown through dibbling method on 09 March 2017, maintaining 45 cm plant to plant and 60 cm line to line distance. The experiment was considered of two factors experiments. Factor A (net-N), N₀: Control (no net); N₁: Net (blue color) and factor B (different types of fertilizers-F); F₁: Cow dung (15 t/ha), F₂: inorganic fertilizers (Urea = 174 kg/ha, TSP = 150 kg/ha, MoP = 150 kg/ha, according to FRG, 2012), F₃: Combined application of 2/3^rd cow dung (F₁) and 1/3^rd inorganic (F₂) and F₄: control were used in this experiment. The entire quantity of cow dung (15 t/ha) was applied just after opening the land. Full dose of TSP was applied to the soil at the final land preparation. Urea and MoP were applied as side dressing in 3 equal installments. The two- factor experiment was laid out in Randomized Complete Block Design (RCBD) with three replications where plot size was 4.32 m² (2.4 m x 1.8 m). Intercultural operations like weeding, gap filling etc. were done when necessary. To control insect-pest, bio pesticide (mixture of onion, garlic, neem leaves & fruits paste) @ 50 mL/L was sprayed at an interval of 15 days. Five plants were selected randomly from each plot for collection of data and the average value was considered as one replication in case of each parameters. Plant height from the ground to the tip of stem and leaf length (4^th no. of leaf) were measured at 35, 50, 65, 80 days after sowing. Number of fruits, days to first flowering, pod length (cm) and diameter (cm) were recorded. Pods were collected after every 2-3 days interval and total ten harvests recorded from the end of April to June, 2017. Yield per plot was converted to ton per hectare. The collected data were analyzed with the help of a computer package programme MSTAT-C and means were separated by using LSD test.

Source of Information: Progressive Agriculture, Vol. 30, Suppl. 1: 1-9, 2019

Article Link (Online Journal): DOI: https://doi.org/10.3329/pa.v30i0.41550

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

For getting better production of okra, judicial application of fertilizers is one of the important factor. Netting is an important aspect of crop production to maximize the yield. From this experiment it is clear that the growth and yield of okra were highly influenced upon the application of different fertilizers and netting. These two factors either singly or in combination influence the growth, yield and quality of okra. In this experiment, the highest yield per hectare was obtained at the combination from combined application of cow dung (2/3) + inorganic (1/3) fertilizers with netting (blue coloured). On the other hand, the lowest yield per hectare was obtained at the combination from without any fertilizer and netting. However, further studies of different coloured shade nets are needed to draw a precise conclusion.

Knowledge Management: Journal